Desert SW – a curious nature

White-point Vetch – Page 6 .. The 100 Day Project (2026)

April 27, 2026

White-point Vetch (Oxytropis sericea var. sericea)

One of the first flowers to bloom in the spring, white-point vetch forms a dense bouquet of brilliant white, pea-shaped flowers that grow on 12 inch tall stalks arising from many basal, soft-hairy compound leaves.

Beautiful to look at ….. POISONOUS if ingested …

….… especially if you’re a cow, horse, sheep, goat, elk or mule deer

All parts of white-point vetch (aka white locoweed) are poisonous at all times, even when dried. The culprit is an alkaloid toxin called Swainsonine, which inhibits enzymes essential for normal carbohydrate and glycoprotein metabolism in cells. This causes carbohydrates to accumulate in the brain and most other organs preventing normal cell function. Depending on how long the locoweed is eaten, the affected cells can be permanently damaged; one to three months of heavy consumption can cause death. Also, Swainsonine is present in the milk of lactating animals affecting their nursing youngsters.

Are locoweeds naturally poisonous? Well, yes, in a way. But the poison isn’t made by the plant itself. Swainsonine is produced by a fungus (Undifilium oxytropis) that acts as an “endophyte,” happily living between the plant’s cells of certain locoweeds in the genus’ Astragalus and Oxytropis. This fungus, thriving at high elevations on Western US rangelands, coexists symbiotically with the host plant, causing little to no harm to the host locoweed. In fact the host may even benefit from the fungus by receiving enhanced drought tolerance, as well as a “don’t eat me” sign to all hungry ungulates. Meanwhile, the fungus goes about its business of keeping the plant well stocked with Swainsonine. Only the species of locoweed without the endophytic fungus are not poisonous. Review the list at the end of my post to learn which Astragalus and Oxytropis species are known to cause “locoism.” (But the real lesson is to be wary of all species in these two genus’ until you seek expert identification.)

Symptoms of locoism in ungulates: Malabsorption of essential minerals and vitamins in the intestinal tract. Decreased appetite and weight loss. Decreased liver function and damage due to elevated liver serum enzymes. Calves, lambs, and foals may be born with deformed legs. Abortions and fetal death are common. Other general symptoms include depression, blindness, loss of coordination, emancipation, tremors, paralysis, constipation and deterioration of the coat.

We have 5 of these plants scattered around our property., and this is one of them. We also have a group of mule deer that walk by this plant almost daily. They must know not to eat the leaves and flowers, moving quickly by in search of something safe to eat.

Abnormal behaviors emerge, such as sudden changes in temperament, aggressiveness, ataxia, falling over unexpectedly, violent reaction to routine management practices such as putting on a halter or refusing to go through a chute. Horses become very depressed and sleepy, and often show more severe neurological effects of locoweed poisoning than cattle and sheep.

Specific to cattle, the major problem encountered with locoweed poisoning is decreased fertility characterized by lower conception and calving rates; semen fertility of affected bulls is also decreased. In addition, cows and bulls consuming locoweed experience reduced libido, behavioral changes, weight loss, and heart failure. Typical findings in calves are decreased growth rates resulting in lower weaning weights. Some calves may be born weak and die shortly after birth.

The flowers of White-point Vetch are bright white and quite lovely. This close-up shows how their form resembles a garden pea flower.

There is no effective treatment for locoweed poisoning! Recovery depends on the duration of ingestion and severity of the lesions. Locoed horses are considered permanently affected.

So why do animals eat poisonous locoweeds when other non-poisonous forage is available? One reason is locoweeds are palatable and have a similar nutrient value to alfalfa. Also, they become habituated to eating them from each other. Once one animal starts to eat locoweed others follow. Removing animals that are locoweed eaters from the herd can reduce the chances of other animals ‘learning’ to eat the plant through social observation.

Is the toxin Swainsonine poisonous to humans? While primarily a risk to livestock, unintentional human exposure, usually through ingestion or smoking, can cause hallucinations, severe liver damage, or even fatal poisoning.

From what I’ve read, people seeking to get “high” from Jimson weed (a Datura species), aka “loco weed,” often mistake a true “locoweed,” (like Oxytropis sericea) for the Datura, even though they look nothing alike. As they begin smoking the leaves or any other part of O. sericea, they can experience severe and rapid hallucinations, delirium, intense paranoia, psychosis, anxiety, agitation and disorientation as their heart races, pupils dilate, vision blurs, and a high fever sets in. Chronic ingestion inhibits cellular enzymes, potentially leading to long-term neurological impairment, reproductive dysfunction, and severe organ damage.

My hand carefully holding a flower stalk. This shows just how large the flowers are. Notice there are quite a lot of buds present at the flower stalk tip. (I did wash my hands after handling the plant)

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Well, that’s a lot of scary stuff! Let me end my post with something light-hearted and laughable from the Wild Wild West — something unbelievably crazy involving the extreme measures that were taken by Colorado ranchers during 1881 to 1885, to prevent their livestock from dining on poisonous locoweed.

Locoweed—The Most Infamous Plant of the Southwest!

As early as the 1800s, livestock growers in the west considered the presence of “weeds” (whether native or non-native) on rangelands an unwelcome nuisance, especially if they outcompeted the growth and availability of “desirable” plants (forage) needed to feed their herds. And if a tasty “weed” or two turned out to be poisonous to their livestock, then its elimination was critical. This was the case with white-point vetch, aka white locoweed (Oxytropis sericea), and its close relative, purple locoweed (O. lambertii), both native perennial species found throughout the intermountain west. Ranchers in the late 1870s were shocked by the skyrocketing deaths of their livestock that were eating locoweed. And in Colorado, ranchers demanded action.

This is a true story of locoweed, the first “weed” for which the 1880s Colorado legislature enacted radical management regulations; the first “weed” where detailed steps were laid out to not only control locoweed, but eliminate all signs of this poisonous plant from Colorado rangelands.

The following is an excerpt from an article written by Charles Bryant, Huerfano County’s (Colorado) Noxious Weed Manager, and printed in “The Learning Ledger” on June 2, 2025.

A young bouquet of White-point vetch was nearly 10” tall, with more growth expected.

One of Colorado’s Most Loco Laws ………

….. the ‘Loco’ or Poison Weed Act of 1881

“At the time of enactment, Colorado had been a state for less than five years and was the epitome of the “Old West,” with the livestock industry being one of the primary drivers of the newly-formed state’s economy. Because of the impact locoweed was having on the health of livestock by 1881, Colorado legislators became preoccupied with the native Oxytropis species.

“The 1881 “Loco or Poison Weed Act” (Act) allowed citizens to “dig up not less than three inches below the surface of the ground any ‘loco’ or poison weed during the months of May, June or July and shall receive a premium of one-half cents per pound for each pound of such weed dug up, to be paid out of the state treasury as hereinafter provided; provided, that such weed shall not be weighed in a green state, but shall be thoroughly dry when weighed.”

“The Act went on further to describe how locoweed bounty hunters of the state were to deliver their dried loads of locoweed to their county clerk within two months of their digging. Upon delivery to the clerk of the county where the weeds were gathered, the clerk was to weigh the load and require those seeking reimbursement to sign an oath stating: “I do solemnly swear that the weed here produced by me this day is ‘loco’ or poisonous weed of X amount of pounds, dug up by me within two months last past.” Upon the recitation of this somber oath the county clerk was to “forthwith destroy such weed by burning” and issue a certificate for payment that was to be paid by the county, with the county later being reimbursed from the state treasury after their submission of an annual report that detailed the amount of locoweed gathered and to whom bounties were paid.

“By 1885 it became glaringly apparent that the locoweed bounty program was unsustainable, to say the least, and rife with fraud. The February 12, 1885, edition of the Rocky Mountain News lambasted the “loco industry” and pointed to the handsome sum of $8,727.27 that had been paid out in one month alone to El Paso County, equivalent to over $283,333 in today’s dollars. The coverage went on to question how over half a million pounds could be collected in El Paso County in a month, and stated that the monthly locoweed bounty expenditures for El Paso County matched the total monthly operating cost of the Colorado State Penitentiary. Only six days after this scathing review, Colorado legislator Rep. Abraham Bergh of Park County led the repeal effort of the Act, and the state finally did away with perhaps one of the most “loco” laws to ever be enacted in Colorado.”

Are you familiar with your local locoweeds? If so, I’d love to know which species you’ve encountered and if they’re on the list (below) of those known to cause locoism?

After learning more about the poisonous nature of locoweeds, next time you discover one, will you think twice before handling the plant? (And please, if you do, be sure to wash your hands!)

Hope you enjoyed this post! Thanks for stopping by!

Astragalus and Oxytropis species known to cause locoism: Astragalus lentiginosis (spotted loco), A. mollissimus (woolly, purple loco), A. wootonii (Wooton loco), A. thurberi (Thurber’s loco), A. nothoxys (sheep loco), A. dyphysus (blue loco, rattlewood), A. earlei (Earle’s loco), A. argillophilus (half moon loco), Oxytropis sericea (white-point vetch, white loco), O. lambertii (purple point loco), O. bessyi (Bessy point vetch), and O. campestris (field loco).

(I’m thinking that just because these species are known to have the poisonous toxin Swainsonine, it might be best to err on the side of caution and treat Astragalus and Oxytropis species as suspect? Do you think so too?)

References

en.wikipedia.org

wildflower.org

poisonousplants.cvmbs.coloradostate.edu

inaturalist.org

oregonflora.org

coloradohistoricnewspapers.org/?a=d&d=RMD18850212-01.2.24

Dark Jerusalem Cricket – Page 5 .. The 100 Day Project (2026)

April 5, 2026

Dark Jerusalem Cricket (Ammopelmatus fuscus)

Last month (mid-March), while looking everywhere for signs of spring (something green and growing), I dared to peek under a flat rock and gasped with surprise! Instead of uncovering a tiny flower bud was a gigantic “creepy-crawly” bug! Yikes! After quickly dropping the rock back on his head I realized my run-away imagination had gotten the better of me.

So gathering my courage, I took another look. There, hiding under that rock was a “cuddly” Jerusalem cricket trying his best to be invisible (while avoiding the bright sunlight).

This wasn’t my first Jerusalem cricket, but seeing this guy prompted me to learn more about this curious insect……

Firstly, Jerusalem crickets are neither true crickets nor are they native to Jerusalem

Taxonomists agree, “Jerusalem crickets are in a very different family than true crickets. This includes a bunch of flightless varieties, and some with wings, found in Africa. The Jerusalem crickets are wingless and are found in the Americas.”
“The origins of the name, “Jerusalem” cricket isn’t certain, but it’s thought that it comes either as a reference to the skull-shaped head (they’re also known as skull crickets), which is associated with skull hill in Jerusalem; or, comes from a watered-down swear word from the ‘40s and ‘50s. Around this time, in the US, both “Jerusalem” and “Cricket” were expletives, associated with being startled.”

Next, some Jerusalem Cricket Mating Characteristics

Similar to true crickets, each species of “sings” a different song during mating. They actually sing by drumming and they drum by beating their butts on the ground.
Once a larger female has successfully mated with a smaller male, and before she lays eggs, females usually eat the males!
She lays her egg masses in holes in the soil. After hatching, over the next 1-2 years, nymphs undergo several molts (as many as 10) until they reach sexual maturity which lasts for only 2-6 months.
Adults can reach up to 2 to 3 inches in length. Females are often larger in size; males have longer hind legs.

Third, Jerusalem Cricket Habitats and Out-of-Sight Living Quarters

They are “well-adapted to living in sandy soils, but can be found in sand dunes, chaparrals, grasslands, woodlands, and forests.”
Being nocturnal, they spend a majority of their lives underground.
They hide underneath organic matter and other debris like rocks, wood. With their powerful mandibles, spiny legs and specially adapted feet, they also dig underground burrows for comfortable living quarters.

And Almost Lastly …. the Cultural Significance of Jerusalem Crickets

Of great importance to Native Americans as food, many tribes in southwestern U.S. also considered Jerusalem crickets as a powerful cultural symbol. Its striking appearance leads some to think the cricket brings mortality, as depicted in the folklore of the Chumash people of southern California.
The Hopi, who settled in Arizona, portrays this cricket as a spirit being (a Kachina) named Sösööpa who races. As a result, it’s often carved into their Katsina dolls as a yellow humanlike character with black beady eyes, a black-and-white plaid skirt, and antennae made from sand grass, depicting traits of the cricket.
The Navajo associated the Yucca plant with the insect; you had to eat the plant as a cure of the cricket’s painful bite. This myth possibly gave rise to the misconception that their bite is venomous.

It’s Greek to Me! (Entomologically Speaking)

Learning the meaning of a scientific name assigned to a species not only helps me remember uncommon words and how they’re pronounced, but often describes aspects of a species’ characteristics that may help differentiate it from another similar-looking species. Learning about these complex names falls into a study called entomology.

Ammopelmatus fuscus, the scientific name for the Dark Jerusalem Cricket, is quite a mouthful. Curious about the meanings (in plain English) of these two strange words, I learned the name originates from Greek and Latin roots meaning “dark sand-sole” or “dark sand-burrower,” obviously referring to their sandy habitats, dark color, and burrowing behavior. But to learn how the common name with the word “sole” ties to one of the cricket’s characteristics, my dive continued. Here’s the entomology breakdown:

Genus Ammopelmatus
- Ammos (Greek) means “sand,” referring to the cricket’s specialized adaptation to arid, sandy environments.
- pelma (Greek) means “sole of the foot,” highlighting the specialized leg structures the cricket uses for burrowing.
- tus (Greek) is a common word meaning either “them” or “their.” In this case, “tus” ties the first two parts together into “their sand sole.”
Species fuscus (Latin) means “dark,” “dusky,” or “brown,” describing the cricket’s color.

Here’s the underside of my Dark Jerusalem Cricket. The leg spines really show well as does the strong mandible. A scary fascinating view!

After learning more about the Dark Jerusalem Cricket, maybe next time I discover one, I won’t jump so high?! Do you think?

Have you seen a Jerusalem cricket hiding out in your yard? If so, what was your reaction?

Hope you enjoyed this post! Thanks for stopping by!

References

inaturalist.org/taxa

bugguide.net/node/view/154

factanimal.com/jerusalem-cricket/

Eaton, Eric R.; Kenn Kaufman (2007). Kaufman Field Guide to Insects of North America. New York: Houghton Mifflin. p. 84.
Milne, Lorus Milne, Lorus and Milne, Margery (1980) The Audubon Society Field Guide to North American Insects & Spiders. Alfred A. Knopf, Inc, pp. 437.
Stoffolano JG, Wright B (2005). “So so opa —Jerusalem Cricket: An Important Insect in the Hopi Katsina Pantheon.”American Entomologist. 51 (3): 174–179. doi:10.1093/ae/51.3.174

Davis Mountain Mock Vervain – Page 3 .. The 100 Day Project (2026)

March 23, 2026

Davis Mountain Mock Vervain (Glandularia wrightii)

This page shows samples from my specimen.. Although the flowers of my specimens are a purple-blue color, I chose to create the flower petals as reddish-pink; this color is also common.

This is a photo of the two flowers I sketched for my final painting.
The specimen on the left shows the upper part of the flower, the “limb” where 5 petals flair out from the throat ringed by fine hairs. The throat leads to the lower part of the flower – the floral tube (5 fused pale green petals). . Both upper and lower petals make up the flower’s corolla. Below the floral tube are 5 red tipped green sepals (collectively called a calyx) all fused into a cup shape. The specimen on the right is a dissected flower; 2 upper petals are removed, and the floral tube has been opened to reveal the reproductive parts. On the left side are 2 of the female parts of the pistil (pale green style supporting the 2-lobed stigma of the pistil; the ovary was not exposed). Two of the four stamens (male) lie in the mid- to upper right side of the opened floral tube; look for the bright yellow anthers, each sitting atop their own filament

Here’s Another Curiosity to Ponder: I wondered why this plant has 5 petals and 5 sepals but doesn’t also have 5 stamens, which is usually the norm in so many other 5-merous plant species??? Here’s what I learned:

Davis Mountain Mock Vervain (Glandularia wrightii) exhibits a common evolutionary trait in the Vervain (Verbenaceae) family where the flower displays a 5-lobed calyx of fused sepals, and 5 5-lobed petals which fuse into a tube (the corolla). This trait, commonly described as 5-merous, curiously has a reduced the number of functional stamens to four.

This reduction is due to an evolutionary transition from a 5-stamen ancestor. According to literature, the four fertile stamens I observed in my specimens are properly arranged in two pairs (didynamous), both neatly hidden in the floral tube beneath a ring of fine hairs. Also properly so, the filaments (the stalks that support the anthers) of the stamens are fused to the inside of the tube, and not easily teased free.

So apparently, many, many, many, many, Many hundreds of years ago, plants in the Vervain family “decided” having a 5th stamen was unnecessary. “We can do just fine without it, thank you.” Thru the process of evolution, that expendable #5 was ever so slowly reduced to a tiny non-functional structure (referred to as a staminode in modern botanical lingo), or was completely and totally lost, becoming only a memory.

Believe me, this species is an energetic producer of leaves, flowers and seeds. In my experience, Davis Mountain Mock Vervain seems to explode in masses of pink and purple flowers throughout spring, summer and fall, and can last thru winters that don’t freeze. It’s easy to understand why the species has no need of a 5th fertile stamen. Once the plant becomes established, it keeps growing and flowering and spreading, often to the detriment of other desirable plants. If it wasn’t so gorgeous at the height of bloom, it might be considered a weed!

But I’m reminded of the definition of a “Weed ….. a plant out of place.” So yes, you’ll find me actively weeding actively growing Davis Mountain Mock Vervain so my other native plants have a chance at life too!!

Thanks for stopping by!

Redstem Stork’s-Bill – Page 2 .. The 100 Day Project (2026)

March 20, 2o26

Redstem Stork’s-Bill (Erodium cicutarium)

An early draft of the page with actual plant parts

Constance’s Spring Parsley – Page 1 .. The 100 Day Project (2026)

March 18, 2026

Project Introduction

For the last few years my “someday” goal has been to create a nature field guide, of sorts, highlighting my many years of observations in the East Mountains of central New Mexico. Well, my “Someday” is officially here! Coinciding with the February 22, 2026 kick-off of the 100 Day Project¹ (Project), I began by committing an hour/day to developing that field guide as my project and immediately penciled out an outline and a few thumbnail sketches of a sample page. But, after retrieving my iNaturalist lists of East Mountains sightings I’ve made from home and during countless hikes, eliminating redundancies, and totaling up the individual species, my reported observations still numbered in the many hundreds. I would be working on this Project for the next five to six years!

Interlude

When we moved to the East Mountains in the summer of 2017, we quickly fell in love with the beauty of the wide open landscapes, the grasslands and woodlands habitats, the diverse populations of wildflowers and mammals, resident and migratory birds, and the insects and reptiles. So yes, nature is plentiful; species are many.

Now Back to the Project

Not to be overwhelmed (or defeated) by the potential magnitude of my Project, I decided to:

“Divide and Conquer” by focusing on a single location …. our current subdivision and surrounding area and trails; and
Prioritize quality over quantity by creating one page over two days, keeping each work session to one hour; and
Keep the Project motivating and interesting, by adding fun facts or other research tidbit about each species.

“These guidelines seemed more realistic,” I thought, with a cautiously optimistic chance of achieving my goal of creating a nature field guide.

So with that as an introduction to my Project, here’s Page 1 to “An Illustrated Guide to the Nature of Las Leyendas Subdivision & Environs, Tijeras, East Mountains, New Mexico” — with many more pages to follow. 🤞

Constance’s Spring Parsley (Vesper constancei)

An early draft of the page with live samples of this pretty wild parsley

¹ “The 100 Day Project is a free global art project that takes place online (https://www.the100dayproject.org/). Every year, thousands of people all around the world commit to 100 days of creating, and anyone can participate. The idea is simple: choose a creative project, do it every single day for 100 days, and document and share your process online. The most recent round of the Project began February 22, 2026, but any day is a great day to begin.”

Wait For It!

Spring is on the Way

February 10, 2026

One of my virtues is impatience ……. when it comes to Spring ….. and its arrival ….. finally.

Admittedly, winter has its perks. After a long, hot summer and fall, winter’s crisp air is a mood lifter, and cooler air temps allow for cozy sleeping under piles of blankets. Longer nights mean my favorite constellations hang in the sky longer, and somehow the moon always seems brighter and friendlier. In New Mexico, winter hiking about is more casual without having to watch every step for rattlesnakes, and certainly any snowfall we’ve been fortunate enough to get helps recharge water tables, tempers our risk of wildfire, and is absolutely beautiful to watch while falling.

But ….. since Winter Solstice and with daytime hours lengthening, I’m ready for Spring. And the closer it gets, my impatience for the upcoming change in season is obvious. My nature journal, pencils and 10x magnifying loop are packed and ready, each daily hike begins by plucking from a yucca one of last year’s flower stalks to poke the ground for signs of growth, and I’m anxious to snap photos of any passing migrating bird or resident roadrunner in search of a perfect nesting spot.

Meanwhile, I’m thankful for my late winter attack of impatience, because it get’s me out there every day, in anticipation of the first flower bud!

As always, Thanks for stopping by!

Native American Day/National Indigenous Peoples’ Day

^{October 13, 2025}

^{Today is the second Monday in October ….. a day to pause and honor the deep roots, rich cultures, and enduring spirit of the first peoples of this land. Native American Day celebrates the history, contributions, and resilience of Native American tribes all across the nation.}

^Yesteryears

^{Native American Day honors all Native Americans. South Dakota led the way, officially changing Columbus Day to}^{Native American Day}^{in 1990 after a “Year of Reconciliation” was declared by Governor George S. Mickelson. California soon followed. In recent years, the movement has gained national momentum. Many states and cities have chosen to celebrate}^{Indigenous Peoples’ Day}^{on the same date. Then in 2021, President Joseph Biden issued the first-ever presidential proclamation for}^{National Indigenous Peoples’ Day}^{, marking a significant step in acknowledging and respecting the history and contributions of America’s first inhabitants.}

*^{Zentangle patterns: Pacpaw, Bilt, Keeko, Mogo, Amath, Tribal, Moonlite, Rain}*

^Present-day

^{Celebrating the second Monday in October is more than acknowledging the past ….. it’s a day to recognize the living cultures that continue to enrich our country’s tapestry. It’s an opportunity to move beyond stereotypes and learn about the diverse traditions, languages, and stories that have shaped this continent for millennia. Native American Day also highlights the efforts to revitalize and preserve hundreds of indigenous languages, each one a unique expression of culture and knowledge. When we celebrate Native American Day, we celebrate the incredible diversity of traditions. Instead of a single culture, there are hundreds of distinct nations, each with its own unique customs.}

^{Storytelling and Art Making}

^{Native Americans have a powerful storytelling tradition of oral history, where foundational stories, lessons, and legacies were and still are passed down through generations. Many of these stories of life and culture are told through artwork, from ancient pictographs (rock paintings) and petroglyphs (images cut into rocks by pecking, incising or abrading) created by the indigenous peoples that lived throughout America, the intricate beadwork of the Plains tribes, the iconic pottery of the Pueblo peoples of the Southwest, to contemporary painting and sculpture. Native art is a cornerstone of American culture.}

^{New Mexico Rock Art}

^{Images painted on and carved into rock that were used in ancient storytelling can be found throughout my home state of New Mexico. Many of these sites are protected and preserved by federal designation as National historic landmarks, National Parks, and by the Bureau of Land Management as Areas of Critical Environmental Concern, and as a significant part of our Archaeological heritage.}

^{Traditional cultures and customs continue to fascinate me, and in “drawing” attention to the important contribution rock art has and continues to play, I wished to shared some of the designs (symbols) created by Native American tribes indigenous to the 4-corners region of the Southwest, with focus on those found in New Mexico. The Kokopelli symbol, the dancing flute player, is a familiar and favorite character throughout the area and has many meanings tied to fertility and harvest. The symbol depicted shows Kokopelli with a hump in his back where he carries seeds ready for planting, while he plays his flute, a symbol of warmth. He also carries a sunflower disk flower (the ‘complete’ inflorescence) to display fertility, the Sun symbol for happiness, and several crop symbols designed by the Acoma, Hopi, and Navajo.}

A Kokopelli created in 2017 … on toned grey paper and colored with Prismacolors

^{The very first known Kokopelli images appeared on ancient Hohokam pottery, dating from between 850 and 750 C.E. The drawing of the Kokopelli petroglyph, in the bottom left of my panel, is inspired by one of these first images that was discovered near Embudo, NM.}

^{Ideas to Celebrate Native American Day …..}^{Learn, listen and engage by}^…..

^{.…. reading a book by a Native American author, such as Louise Erdrich, Sherman Alexie or Tommy Orange,}

^{….. exploring a museum or a state historic site to learn firsthand about the lives and history of the region’s tribes,}

^{….. purchasing authentic arts, crafts, and goods from Native artists, which directly supports and helps preserve their cultural practices,}

^{….. attending one of many community- or university-hosted talks, film screenings, or celebrations such as a powwow}

^{Thank you very much for stopping by!}

One of the Most Aloof Sunflowers Ever! The Cowpen Daisy

Part 3 ….. An Allelopath Declares Chemical Warfare

August 15, 2025

The more I learn about Cowpen Daisy (Verbesina encelioides), the more the words Intrepid (fearless and bold), Interloping (meddlesome and smothering), and Impertinent (pushy and rude) come to mind.

Cowpen Daisy is literally a plant at war …..

Its adversaries are neighboring plants …..

Its weapons of choice are chemicals ….. 15¹different Allelochemicals² to be exact.

Cowpen Daisy shows no mercy to its most susceptible victims, and given the right conditions in the right locations, Cowpen Daisy can cripple ecosystems, and unravel biodiversity.

Oh No! What Have I Done! Have I unleashed a formidable enemy to run amok, bullying its way through our mostly intact biodiverse high desert ecosystem?

Maybe not! (Spoiler alert…… Allelopathy³can be bad, but I still love this happy Daisy)

On August 6th, I received an excellent question from one of my blog followers, based on my first Cowpen Daisy post :

“Do you have any concerns about this becoming an invasive plant? Best wishes, Nancy”

In reply, I expressed my concern about the number of “seedlings coming up late spring,” and how “I was definitely alarmed and wondered about the need for early control.” Fortunately, “as the season advanced, it became clear the density of plants seemed self-controlling.” Based on my limited experience with Cowpen Daisy, I explained how during the summer of 2023 “the plant completely covered an extremely large field near our home,” causing me concern about its invasive tendencies. But upon “[R]eturning the following year (2024) and again this past spring (2025) to see if the same field was blanketed again in these plants, “I couldn’t find a single Cowpen Daisy anywhere! So no, this annual [doesn’t appear to be] “invasive, at least not in central New Mexico.”

But Nancy’s question prompted me to dig deeper into on-line research. I wondered: Is Cowpen Daisy invasive outside of its native range, particularly where conditions are ideal for its aggressive growth? Yes, it is! And its invasiveness is further enhanced where neighboring plants are susceptible to the impacts of the allelochemicals released by Cowpen Daisy’s leaves, roots and decaying leaf matter in the soil.

One example where Cowpen Daisy is an introduced species and has become invasive is in India. Fields of mung bean, corn, chickpeas, and sweet melon are being outcompeted by invasive stands of Cowpen Daisies. These food crops are severely impacted by two allelochemicals released by the both roots and leaves of the Daisy; steroids and phenols. Studies of these four crops demonstrated not only “the suppression of germination and growth in these plants” but “also revealed an antagonistic effect on [their] chlorophylls, carotenoids and protein levels.” In other words, Cowpen Daisy is winning the war against India’s mung bean, corn, chickpea and melon crops, and farmers are currently engaged in a battle to develop a strategy of control and run this biological enemy out of their country.

Cowpen Daisy is only considered a native species to the Southwest U.S. and Northern Mexico. However, it has been introduced (either intentionally or by accident) and is considered naturalized in parts of Eastern North America, the Middle East, Spain, Argentina, Australia and the Pacific islands. As such, Cowpen Daisy’s nature to drop allelochemicals everywhere it grows allows it to behave like an invasive plant in countries where it is naturalized. Without diligent management (via herbicide application or mechanical control), it can thrive to the detriment of their desirable plant species’ survival.

Have I defeated my goal of reestablishing a diverse native plant community in disturbed areas surrounding our new home? “Not likely,” says I, optimistically! In addition to Cowpen Daisy, the variety of native plant species I intentionally seeded last fall and early this past spring, have germinated, grown, flowered and seeded or are in the process of flowering and seeding, most of which are adjacent to a Daisy. Of course time will tell. Meanwhile, I’ve declared this to be a happy ending to this post and my stand of happy Cowpen Daisies! However ……. next spring, if germination rates from my reseeders are low or zero, but Cowpen Daisy returns with renewed vigor, then I have a control job waiting for me. And the best advice I’ve read is to “pull out old plants and roots and selectively remove new seedlings.” That’s acceptable! That I can do!

Until then!

Do you struggle with weedy, invasive plant species in your garden or yard? Have you seen fields of blooming weeds and wondered …… “what weed is that?” Do you know the names of those pesty plants and do they seem to keep your favorite variety of cucumbers from growing? It might be interesting to learn if your local invasives are one of the many Allelopaths happily growing in our world! Let me know!

As always, thanks for dropping by!

¹Cowpen Daisy is known to release up to 15 different allelochemicals² from its leaves and roots, such as guanidine, phytosterols, phenolic acids, tripertenes, flavonoids, dicarboxylic acids, phytophenols, steroids, phenols, and others. Fresh and decaying leaf litter leach 14 of those allelochemicals into the soil.

^2,3Allelopathy is a biological phenomenon by which an organism produces one or more biochemicals that influence the germination, growth, survival, and reproduction of other organisms. These biochemicals are known as allelochemicals and can have beneficial (positive allelopathy) or detrimental (negative allelopathy) effects on the target organisms and the community. Allelopathy is often used narrowly to describe chemically-mediated competition between plants. Allelopathic interactions are an important factor in determining species distribution and abundance within plant communities, and are also thought to be important in the success of many invasive plants. (source: Wikipedia)

One of the Most Edible Sunflowers Ever! The Cowpen Daisy

Part 2 ….. Ethnobotany, Etymology and Epicureans

August 11, 2025

While compiling last week’s post about the happy Cowpen Daisy party taking place outside our back door, it was no surprise to find way more interesting info about this sunflower than could ever fit on my journal page. Decisions …… decisions! To keep the August 5th illustrated page relatively uncluttered, I decided to include just the botanical basics (mostly), focusing on Cowpen Daisy flowers, leaves and seeds.

Then the past week I found my nature journal wide open to a blank page, ‘begging me’ for another Cowpen Daisy entry ….. “What about all those interesting info bits?” she asked. Replying* to my journal with a hearty, “OK,” I proceeded to locate and gather my rabbit-trailing notes. This scavenger hunt reminded me just how many pages there were; so many fascinating things about the Cowpen Daisy I wanted to remember and share. Decisions …… decisions! How to keep this next post to one page? By limiting the topics to only three, was it possible?

Barely! (after some clever editing, not a single word dropped off the page)

A little bit closer view for those without a microscope!

P.S. By the way, you may have noticed I’ve indicated this post is Part 2 of what’s now become my Cowpen Daisy series. Unless I start journaling on larger than 8” x 11” paper, there’s likely to be more Parts in store. And this multi-part series resulted in a minor edit to last week’s post, not titled “One of the Happiest Sunflowers Ever! The Cowpen Daisy; Part 1 ….. Can There Be Too Many Sunflowers?” In case you missed it, please check it out here.

*Yes, you read that right; I talk with my nature journals. Don’t you? After all, we do spend quite a bit of time together!

As always, thanks for stopping by!

Hooked on Trichomes … The Curious Nature of ‘Mentzelia’

July 29, 2025

You must awake when the first rooster crows to enjoy the floral beauty of a fully flaired Blazingstar blossom. Appropriately named, these gorgeous flowers display a radiant combination of spoon-shaped petals, petal-like stamens, and hundreds of thread-like stamens, all colored in bold sulfur yellows, distinctive pale orange-yellows, brilliant star whites, or fluorescent blues, based on species. These superbly showy flowers unfurl overnight atop tall white, branching stems that resemble candelabras with narrow lobed green leaves. These large, 2” diameter flowers belong to the Mentzelia genus, plants that are all native to the Americas, and represented by 60-80 species, most found in the desert southwest.

In 1753, Carl Linneaus gave this plant its genus name, Mentzelia, after German botanist and sinologist Christian Mentzel. (Did you know a Sinologist is a specialist in the study of Chinese language, literature, and civilization? Huh!) But perhaps more fascinating and what’s always ‘captured’ my complete attention (and blue jeans) is that the Mentzelia genus fits perfectly in the Loasaceae family ….. commonly referred to as the Stickleafs.

About those leaves ……

Being primarily a day-time hiker, my first encounter with a Blazingstar occurred simultaneously with a misstep into the plant. Noticing some resistance in making my escape, I looked down at the ground and discovered my jeans had a collection of stuck leaves from my boots on up. And the leaves were really stuck tight along their entire length! Removing those leaves was like peeling a banana, only tougher. Wait! Forget the banana peel. Removing those sticky leaves sounded like and felt like tugging on and separating Velcro! I was reminded of the familiar ‘ripping’ noise made when Velcro hooks are forcibly released from their loops!

Eureka!!

Nature is full of surprises. Were the Stickleafs the source of accidental inspiration for today’s handy hook-n-loop fastener, called Velcro? Almost, but not quite! As it turns out, the tiny hooks on Cocklebur seedpods inspired a Swiss engineer to develop Velcro in 1941. But not to change subjects too much …….The reasons Stickleafs could’ve been the inspiration for Velcro, is similar to the Cocklebur story, but, I think, even better. Here’s why ……

The seedpods of both plants have tiny hooks that readily adhere to clothing and fur. And it was the hooks’ tenacity for stick-to-it-tiv-ness that grew the original Velcro idea. But Stickleafs go even further in ‘reinforcing’ the fastener concept. Not only does the seed pod (capsule) of Stickleafs have a covering of tiny hooks, but both leaf surfaces and even the stems of plants in this family can have multiple types of minuscule grappling-hooks and barbed needles, called Trichomes, visible only with an electron microscope. I summarize that if the Swiss engineer was visiting America in 1941, and had the good fortune to walk into a Mentzelia plant, he undoubtedly would’ve been super inspired to develop Velcro. After all, it’s the leaves that stick fast to clothing, resemble a strip of Velcro, and hold tight, mimicking an ideal hook-n-loop fastener.

Hooked on Trichomes

And now for the curious nature of the Mentzelia genus. When coming across the Adonis Blazingstar (Mentzelia multiflora) over the past 8 years, it’s been fun to inspect the leaves, remove one and intentionally stick it to Roy’s jeans or mine. I’ve then wondered how this plant ‘sticks’ so well, and why. The time for answers arrived this month, and what I learned was fascinating. It’s all about Trichomes.

Trichome is a botanical term used to describe the small hair-like structures that occur somewhere on a plant; typically on plant leaves. Trichomes can be found throughout the plant kingdom (like on Cannabis sativa); they aren’t unique to the Stickleaf family, and are found on all species of the the Mentzelia genus. Some Mentzelia species have one type or shape of trichome; some have several types. Adonis Blazingstar has two types of trichomes – one is shaped like a grappling hook; one is shaped like a barbed needle. It’s the trichomes that grab on and hold tight. But what possible function do they serve the plant? Surely a leaf sticking to the fur of a passing animal or a person’s pant leg, while decorative, is otherwise pointless?

What Good are Mentzelia Trichomes?

Like plant hairs, trichomes aid a plant in water conservation in times of drought by reducing transpiration, and in situations of other environmental stressors, such as excessive UV light and extreme temperatures. The trichomes serve as a protective barrier between the leaf, stem, or other part of the plant, and the environment.

Trichomes can function as water collection, retention and funneling structures during a rainstorm.

The grab-and-hold nature of trichomes when they attach to fur or clothing can cause enough vibration of mature seed capsules to shake loose seeds ready for dispersal.

Trichomes are the plant’s primary defense against herbivory; not from livestock or rodents intent on munching leaves, but from insects that attempt crawling amongst the grappling hooks and barbed needles intent on causing damage. As can be seen in electron microscope images, insects have been photographed speared and hooked and killed because they were unable to escape their entrapment by trichomes.

But not all insects succumb to the fate of trichomes. Aphids are able to navigate the dense forest of hooks and needles without capture, allowing them to wreak havoc on vulnerable and tasty leaves, stems and seed capsules.

And that’s why the Mentzelia genus of the Stickleaf family is one of the natural curiosities of the plant kingdom. Maybe now, you too, are Hooked on Trichomes?

I hope you’ve enjoyed this post, and do thank you for stopping by!

And if you’re curious about how Trichomes contribute to the enjoyment and/or medicinal benefits of marijuana (Cannabis sativa), here’s what I found:

Trichomes are the primary site for cannabinoid production (i.e. compounds like THC & CBD responsible for the plant’s psychoactive/therapeutic effects.

Trichomes are the site of terpene production which gives different Cannabis strains their unique aromas/flavors.

Trichomes are the site of flavonoids known for antioxidant and medicinal properties.