Veratrum californicum

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Veratrum californicum
Veratrum californicum habitus1.jpg
Status TNC G5.svg
Secure  (NatureServe)
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Order: Liliales
Family: Melanthiaceae
Genus: Veratrum
Species:
V. californicum
Binomial name
Veratrum californicum

Veratrum californicum (California corn lily, white or California false hellebore) is an extremely poisonous plant [1] native to western North America, including the Sierra Nevada and Rocky Mountains, as far north as Washington and as far south as Durango; depending on latitude, it grows from near sea level to as high as 11,000 feet. [2] [3] It grows 1 to 2 meters tall, with an erect, unbranched, heavily leafy stem resembling a cornstalk. [4] It prefers quite moist soil, and can cover large areas in dense stands near streams or in wet meadows. Many inch-wide flowers cluster along the often-branched top of the stout stem; they have 6 white tepals, a green center, 6 stamens, and a 3-branched pistil (see image below). The buds are tight green spheres. The heavily veined, bright green leaves can be more than a foot long. [3]

Contents

Veratrum californicum displays mast seeding; populations bloom and seed little in most years, but in occasional years bloom and seed heavily in synchrony. [5] The species usually blooms during midsummer from July to August. [6]

Varieties [2]
  1. Veratrum californicum var. californicum – from Washington to Durango
  2. Veratrum californicum var. caudatum(A.Heller) C.L.Hitchc. – Idaho, Washington, Oregon, N California

Teratogenic effects

It is a source of jervine, muldamine and cyclopamine, teratogens which can cause prolonged gestation associated with birth defects [7] such as holoprosencephaly and cyclopia in animals such as sheep, [1] horses, and other mammals that graze upon it. These substances inhibit the hedgehog signaling pathway. [8]

Related Research Articles

<i>Eschscholzia californica</i> Species of flowering plant and state flower of California

Eschscholzia californica, the California poppy, golden poppy, California sunlight or cup of gold, is a species of flowering plant in the family Papaveraceae, native to the United States and Mexico. It is cultivated as an ornamental plant flowering in summer, with showy flowers in brilliant shades of red, orange and yellow. It is also used as food or a garnish. It became the official state flower of California in 1903.

<i>Eriophyllum lanatum</i> Species of flowering plant

Eriophyllum lanatum, with the common names common woolly sunflower, Oregon sunshine and golden yarrow, is a common, widespread, North American plant in the family Asteraceae.

<i>Veratrum viride</i> Species of plant

Veratrum viride, known as Indian poke, corn-lily, Indian hellebore, false hellebore, green false hellebore, or giant false-helleborine, is a species of Veratrum native to eastern and western North America. It is extremely toxic, and is considered a pest plant by farmers with livestock. The species has acquired a large number of other common names within its native range, including American false hellebore, American white hellebore, bear corn, big hellebore, corn lily, devil's bite, duck retten, itchweed, poor Annie, blue hellebore and tickleweed.

<i>Toxicoscordion venenosum</i> Western North American flowering plant

Toxicoscordion venenosum, with the common names death camas and meadow death camas, is a species of flowering plant in the family Melanthiaceae. It is named for its well known toxic qualities, with both its common names and its scientific name referencing this. Because its nectar is also poisonous, it is mainly pollinated by the death camas miner bee, which specializes in collecting the toxic pollen for its young. It is native to western North America from New Mexico to Saskatchewan and west to the Pacific Ocean.

<i>Xerophyllum tenax</i> Species of flowering plant

Xerophyllum tenax is a North American species of plants in the corn lily family. It is known by several common names, including bear grass, soap grass, quip-quip, and Indian basket grass. The name "beargrass" is thought to come from its connection to both the plant's habitat and its relationship with bears. Found in the same forested and meadowed areas where bears are commonly present, beargrass thrives in environments such as the Pacific Northwest, California, and parts of the Rocky Mountains. Bears are known to feed on the softer leaf bases of the plant, which may have influenced its name. In addition to this ecological connection, beargrass is a tough, resilient plant, which could also explain its association with bears, creatures often symbolizing strength and endurance. The plant’s long, fibrous leaves are highly valued by Native Americans, who use them to weave baskets, jewelry, and other items. While it is a common myth that beargrass blooms every seven years, the plant typically blooms at irregular intervals, depending on environmental factors such as moisture and temperature. Beargrass can grow to be a little over 4 feet tall when in a preferred habitat and ideal conditions such as ample sunlight.

<span class="mw-page-title-main">Cyclopamine</span> Chemical compound

Cyclopamine (11-deoxojervine) is a naturally occurring steroidal alkaloid. It is a teratogenic component of corn lily, which when consumed during gestation has been demonstrated to induce birth defects, including the development of a single eye (cyclopia) in offspring. The molecule was named after this effect, which was originally observed by Idaho lamb farmers in 1957 after their herds gave birth to cycloptic lambs. It then took more than a decade to identify corn lily as the culprit. Later work suggested that differing rain patterns had changed grazing behaviours, which led to a greater quantity of corn lily to be ingested by pregnant sheep. Cyclopamine interrupts the sonic hedgehog signalling pathway, instrumental in early development, ultimately causing birth defects.

<i>Veratrum</i> Genus of plants

Veratrum is a genus of flowering plants in the family Melanthiaceae. It occurs in damp habitats across much of temperate and subarctic Europe, Asia, and North America.

<i>Apocynum androsaemifolium</i> Species of plant

Apocynum androsaemifolium, the fly-trap dogbane or spreading dogbane, is a flowering plant in the Gentianales order. It is common across Canada and much of the United States excepting the deep southeast.

<i>Ericameria nauseosa</i> Species of flowering plant

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<i>Geum triflorum</i> Species of flowering plant

Geum triflorum, commonly known as prairie smoke, old man's whiskers, or three-flowered avens, is a spring-blooming perennial herbaceous plant of the Rosaceae family. It is a hemiboreal continental climate species that is widespread in colder and drier environments of western North America, although it does occur in isolated populations as far east as New York and Ontario. It is particularly known for the long feathery plumes on the seed heads that have inspired many of the regional common names and aid in wind dispersal of its seeds.

<i>Lilium columbianum</i> Species of lily

Lilium columbianum is a lily native to western North America. It is also known as the Columbia lily, Columbia tiger lily, or simply tiger lily.

<i>Lilium washingtonianum</i> Species of lily

Lilium washingtonianum is a North American plant species in the lily family. It is also known as the Washington lily,Shasta lily, or Mt. Hood lily. It is named after Martha Washington and not the state of Washington; in fact, as the northern range of the plant is near Mount Hood in Oregon, it does not naturally occur in the state of Washington.

<i>Veratrum insolitum</i> Species of flowering plant

Veratrum insolitum is a species of false hellebore, a type of plant closely related to the lily. Its common name is Siskiyou false hellebore. It is native to the northwestern United States: Washington, western Oregon, and northwestern California as far south as Trinity County.

<i>Veratrum fimbriatum</i> Species of flowering plant

Veratrum fimbriatum is an uncommon species of false hellebore, a type of plant closely related to the lily. Its common names are fringed false hellebore and fringed corn lily. It is endemic to California where it is a rare resident of the northern coastal scrub plant communities of Mendocino and Sonoma Counties. This flowering plant is a stout, hollow-stemmed perennial growing from a thick rhizome. The erect flowering plant bears several large, flat, green leaves near the base of the green stem. The large panicle inflorescence is packed with many distinctive, lacy-fringed flowers each up to a centimeter wide. The flower bud is club-shaped before it opens into a bloom of six frilly tepals, each of which bears two bright green or gold glands. The ovary and sepals extend straight outward as one thick stalk. The fruit is an oval-shaped capsule just under a centimeter long containing the seeds.

<i>Argemone munita</i> Species of flowering plant

Argemone munita is a species of prickly poppy known by the common names flatbud prickly poppy and chicalote. "Munita" means "armed", in reference to the many long prickles. This flower is native to California, where it is widespread throughout the western part of the state and its eastern deserts, on slopes to 10,000 feet, and along roadsides. Its range also extends into Baja California, Arizona, and Nevada.

<i>Sambucus racemosa</i> Species of plant

Sambucus racemosa is a species of elderberry known by the common names red elderberry and red-berried elder.

<i>Hydrophyllum capitatum</i> Species of flowering plant

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<span class="mw-page-title-main">Flora of the Sierra Nevada alpine zone</span>

The flora of the U.S. Sierra Nevada alpine zone is characterized by small, low growing, cushion and mat forming plants that can survive the harsh conditions in the high-altitude alpine zone above the timber line. These flora often occur in alpine fell-fields. The Sierra Nevada alpine zone lacks a dominant plant species that characterizes it, so may or may not be called a vegetation type. But it is found above the subalpine forest, which is the highest in a succession of recognized vegetation types at increasing elevations.

<i>Papaver heterophyllum</i> Plant species

Papaver heterophyllum, previously known as Stylomecon heterophylla, and better known as the wind poppy, is a winter annual herbaceous plant. It is endemic to the western California Floristic Province and known to grow in the area starting from the San Francisco Bay Area of Central Western California southwards to northwestern Baja California, Mexico. Its main habitat is often described as mesic and shady, with loamy soils such as soft sandy loam, clay loam, and leaf mold loam.

References

  1. 1 2 Whitney, Stephen (1985). Western Forests (The Audubon Society Nature Guides). New York: Knopf. p.  551. ISBN   0-394-73127-1.
  2. 1 2 Kew World Checklist of Selected Plant Families
  3. 1 2 Blackwell, Laird R. (1998). Wildflowers of the Sierra Nevada and the Central Valley. Lone Pine Publishing. ISBN   1-55105-226-1.
  4. Niehaus, Theodore F.; Ripper, Charles L.; Savage, Virginia (1984). A Field Guide to Southwestern and Texas Wildflowers . Houghton Mifflin Company. pp.  10–11. ISBN   0-395-36640-2.
  5. Inouye, David W.; Wielgolaski, Frans E. (2003). "High Altitude Climates". In Schwarz, Mark D. (ed.). Phenology: An Integrative Environmental Science. Kluwer Academic Publishers. pp. 195–214. ISBN   1-4020-1580-1 . Retrieved 2011-12-07.
  6. Southwest, The American. "California Corn Lily, Veratrum Californicum". www.americansouthwest.net. Retrieved 2021-06-12.
  7. Van Kampen & Ellis. "Prolonged Gestation in Ewes Ingesting Veratrum californicum: Morphological Changes and Steroid Biosynthesis in the Endocrine Organs of Cyclopic Lambs".
  8. Chen, J; Taipale, J; Cooper, M. (2002). "Inhibition of Hedgehog Signaling by direct binding of Cyclopamine to Smoothened". Genes Dev. 16 (21): 2743–2748. doi:10.1101/gad.1025302. PMC   187469 . PMID   12414725.