Delphinium barbeyi

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Delphinium barbeyi
Delphiniumbarbeyi.jpg
Status TNC G4.svg
Apparently Secure  (NatureServe)
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Order: Ranunculales
Family: Ranunculaceae
Genus: Delphinium
Species:
D. barbeyi
Binomial name
Delphinium barbeyi
(Huth) Huth

Delphinium barbeyi is a species of flowering plant in the buttercup family known by the common names subalpine larkspur, tall larkspur, and Barbey's larkspur. [1] It is native to the interior western United States, where it occurs in the states of Arizona, Colorado, New Mexico, Utah, and Wyoming. [2]

This species is a perennial herb growing up to 1.5 meters tall. The leaves line the stem but disappear from the lowest part of the stem by the time the plant blooms. The leaves are somewhat rounded in outline and are divided into several lobes. The tall inflorescence bears up to 50 flowers at a time, [2] but a plant may produce hundreds of flowers. [3] Each is borne on a pedicel up to 6 centimeters long. The flower has five dark purple-blue sepals with whitish or yellowish hairs inside. The fruit is a follicle up to 2.2 centimeters long. [2]

The plant is long-lived, capable of exceeding 75 years of age. [4]

It occupies wet habitat types in subalpine and alpine climates. [2] It is a dominant member of the herb layer in many places. It can often be found growing beneath aspens. [5]

This Delphinium commonly hybridizes with its relative, Delphinium glaucum . Hybrids may be more common in the habitat than individuals of the parent species. The hybrid is sometimes called the duncecap larkspur (Delphinium × occidentale). [6] D. barbeyi also hybridizes with Delphinium ramosum and D. sapellonis . [2]

Bumblebees and hummingbirds use the nectar from the flowers. [7] The bee species Bombus nevadensis , Bombus insularis , Bombus appositus and B. flavifrons and the hummingbirds Selasphorus platycercus , S. rufus , and Stellula calliope have been observed. Both types of pollinators prefer the larkspurs with the largest flower displays. [3] The sphinx moth Hyles lineata and anthomyiid flies also visit the flowers. [8]

All members of the genus Delphinium are toxic to humans and livestock. [9] Many species of larkspurs are known for being poisonous, and as hazards to livestock. This species is notorious as one of the toxic plants most commonly responsible for livestock death, especially cattle fatalities on the rangelands of Colorado and Utah. [10] Sheep are much less susceptible. [11] Up to 15% of a cow herd can be lost to poisoning in areas where this larkspur and its hybrids are common. The cost to ranchers is in the millions of dollars. [12] Abundance of larkspur has persuaded ranchers to remove their animals from some areas of rangeland, or use the land only at certain times of the year. The plant contains many toxic alkaloids. [13] The alkaloids barbinine and barbinidine were first isolated from this species. [14] The most hazardous are called methylsuccinimide anthranoyllycoctonine (MSAL) diterpenoids. About two kilograms dry weight of the plant is estimated to provide a fatal dose of alkaloid. [13] Paralysis occurs and death is caused by respiratory paralysis. [12] Toxicity reactions in animals, sometimes called larkspur toxicosis, can be treated with physostigmine. [13] [15]

Ranchers sometimes attempt to kill this larkspur with the herbicide tebuthiuron. [16] Glyphosate and picloram have been effective in research trials, [17] but these chemicals kill nontarget plants as well, accelerating the invasion of weeds into the habitat. [16]

Related Research Articles

<i>Aconitum</i> Genus of flowering plants in the buttercup family Ranunculaceae

Aconitum, also known as aconite, monkshood, wolfsbane, leopard's bane, devil's helmet, or blue rocket, is a genus of over 250 species of flowering plants belonging to the family Ranunculaceae. These herbaceous perennial plants are chiefly native to the mountainous parts of the Northern Hemisphere in North America, Europe, and Asia, growing in the moisture-retentive but well-draining soils of mountain meadows.

<span class="mw-page-title-main">Ranunculaceae</span> Family of eudicot flowering plants

Ranunculaceae is a family of over 2,000 known species of flowering plants in 43 genera, distributed worldwide.

<i>Delphinium</i> Genus of flowering plants

Delphinium is a genus of about 300 species of annual and perennial flowering plants in the family Ranunculaceae, native throughout the Northern Hemisphere and also on the high mountains of tropical Africa. The genus was erected by Carl Linnaeus.

<i>Consolida</i> Genus of flowering plants

Consolida is a genus of about 40 species of annual flowering plants in the family Ranunculaceae, native to western Europe, the Mediterranean and Asia. Phylogenetic studies show that Consolida is actually an annual clade nested within the genus Delphinium and it has been treated as a synonym of Delphinium in Kew's Plants of the World Online. The name of the genus comes from an archaic use of consolidation, meaning "healing", in reference to the plant's medieval use for healing wounds.

<i>Aconitum lycoctonum</i> Species of plant

Aconitum lycoctonum is a species of flowering plant in the genus Aconitum, of the family Ranunculaceae, native to much of Europe and northern Asia. It is found in lowlands to the subalpine zone, mainly in forests and shaded habitats. Along with A. napellus, A. lycoctonum is of the most common European species of the Aconitum genus. They are also grown ornamentally in gardens, thriving well in ordinary garden soil. As such, A. lycoctonum can be found in North America, especially in eastern Canada, often in old gardens or as garden escapees.

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

Methyllycaconitine (MLA) is a diterpenoid alkaloid found in many species of Delphinium (larkspurs). In common with many other diterpenoid alkaloids, it is toxic to animals, although the acute toxicity varies with species. Methyllycaconitine was identified one of the principal toxins in larkspurs responsible for livestock poisoning in the mountain rangelands of North America. Methyllycaconitine has been explored as a possible therapeutic agent for the treatment of spastic paralysis, and it has been shown to have insecticidal properties. It has become an important molecular probe for studying the pharmacology of the nicotinic acetylcholine receptor.

<i>Staphisagria macrosperma</i> Species of flowering plant

Staphisagria macrosperma, formerly known as Delphinium staphisagria, is a species of Staphisagria of the family Ranunculaceae. It used to belong to the subgenus or section Staphisagria of the genus Delphinium, but molecular evidence suggests Staphisagria should be a genus which is a sister group to the Aconitum-Delphinium clade. It is described botanically as a stoutly-stemmed, hairy biennial with large palmate leaves up to 6 inches (15 cm) across. The flowers are mauve-blue to blue, short-spurred, and up to 1 inch (2.5 cm) across, occurring in racemes. The plant grows to a height of 4–5 feet. It grows throughout the Mediterranean. All parts of this plant are highly toxic and should not be ingested in any quantity.

<i>Delphinium nudicaule</i> Species of plant

Delphinium nudicaule, known by the common names canyon larkspur, red larkspur, orange larkspur, and canyon delphinium, is a flowering herbaceous perennial plant in the buttercup family Ranunculaceae. It is native to low-elevation canyons and slopes, foothills, and mountain ranges of California, US, from the Sierra Nevada to the California Coast Ranges, and of Oregon. It grows below 6,500 feet (2,000 m).

<i>Delphinium cardinale</i> Species of plant

Delphinium cardinale is a species of larkspur known by the common names scarlet larkspur and cardinal larkspur. This wildflower is native to California and Baja California, where it grows on coastal, inland, and desert chaparral slopes, such as the Colorado Desert, and the Peninsular and Transverse Ranges. The presence of diterpenoid alkaloids, probably including the highly toxic methyllycaconitine, in above-ground parts of D. cardinale means that they are likely to be toxic if ingested.

<i>Delphinium glaucum</i> Species of plant

Delphinium glaucum, known by the common names Sierra larkspur, mountain larkspur, and glaucous larkspur, is a species of wildflower in the genus Delphinium, which belongs to the buttercup family, Ranunculaceae. It is native to western North America from Arizona to Alaska, growing in moist mountainous environments such as riverbanks and meadows.

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

Delphinine is a toxic diterpenoid alkaloid found in plants from the Delphinium (larkspur) and Atragene genera, both in the family Ranunculaceae. Delphinine is the principal alkaloid found in Delphinium staphisagria seeds – at one time, under the name stavesacre, a very well known herbal treatment for body lice. It is related in structure and has similar effects to aconitine, acting as an allosteric modulator of voltage gated sodium channels, and producing low blood pressure, slowed heart rate and abnormal heart rhythms. These effects make it highly poisonous. While it has been used in some alternative medicines, most of the medical community does not recommend using it due to its extreme toxicity.

<i>Delphinium scopulorum</i> Species of plant

Delphinium scopulorum, commonly known as Rocky Mountain larkspur, is a species of wildflower in the genus Delphinium, which belongs to the buttercup family, Ranunculaceae. It is native to the Southwestern United States and found predominantly in upper-elevation moist meadows.

<i>Delphinium tricorne</i> Species of flowering plant

Delphinium tricorne, known by the common names dwarf larkspur or spring larkspur, is a species of flowering plant in the Ranunculaceae (buttercup) family. It is native to the central and eastern United States, where it is the most common Delphinium found.

<i>Delphinium exaltatum</i> Species of flowering plant

Delphinium exaltatum, known by the common name tall larkspur, is a species of flowering plant in the genus Delphinium, part of the buttercup family. Other Delphinium species are also commonly known as tall larkspur, such as Delphinium barbeyi. D. exaltatum is native to the central and eastern United States, where it can be found in Kentucky, Maine, Ohio, Pennsylvania, Maryland, West Virginia, Virginia, North Carolina, Alabama, Tennessee, and Missouri.

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

Gigactonine is a naturally occurring diterpene alkaloid first isolated from Aconitum gigas. It occurs widely in the Ranunculaceae plant family. The polycyclic ring system of this chemical compound contains nineteen carbon atoms and one nitrogen atom, which is the same as in aconitine and this is reflected in its preferred IUPAC name.

<i>Delphinium elatum</i> Species of plant

Delphinium elatum is a species of flowering plant in the buttercup family Ranunculaceae, known by the common name alpine delphinium, guardian lavender, or candle larkspur. It is native to temperate Asia and Europe, it is an erect herbaceous perennial growing to 1.8 m (5.9 ft), with deeply divided leaves. It produces spikes of blue or purple flowers in summer.

<i>Bombus appositus</i> Species of bee

Bombus appositus is a species of bumblebee known commonly as the white-shouldered bumblebee. It is native to western North America, including western Canada and the western United States.

Delphinium caseyi, also known as Casey's larkspur, is a flowering plant within the family Ranunculaceae.

<i>Delphinium geyeri</i> Species of flowering plant

Delphinium geyeri is a species of plant in the Ranunculaceae family that is often called by the common names plains larkspur and foothills larkspur. It is infamous for causing the deaths of cattle grazing in the spring because it is especially poisonous before it flowers and so it is also called poisonweed by ranchers. It is a medium to tall plant that has very striking blue flowers and is occasionally grown in native plant gardens for this reason. It grows mainly in Wyoming with large population in northern Colorado, northeastern Utah, and parts of Nebraska.

<span class="mw-page-title-main">Delphinieae</span> Tribe of flowering plants

Delphinieae is a tribe of the subfamily Ranunculoideae of the family Ranunculaceae. It comprises 4 genera found in Eurasia, North America, and Africa.

References

  1. "Delphinium barbeyi". Germplasm Resources Information Network . Agricultural Research Service, United States Department of Agriculture . Retrieved 23 January 2018.
  2. 1 2 3 4 5 "Delphinium barbeyi". Flora of North America.
  3. 1 2 Williams, C. F. (2007-10-01). "Effects of floral display size and biparental inbreeding on outcrossing rates in Delphinium barbeyi (Ranunculaceae)". American Journal of Botany. 94 (10): 1696–1705. doi:10.3732/ajb.94.10.1696. ISSN   0002-9122. PMID   21636366.
  4. "Delphinium barbeyi". Rocky Mountain Biological Laboratory. Archived from the original on 2013-07-02. Retrieved 2013-05-08.
  5. Pfister, James A; Ralphs, Michael H; Gardner, Dale R; Stegelmeier, Bryan L; Manners, Gary D; Panter, Kip E; Lee, Steven T (2002). "Management of three toxic Delphinium species based on alkaloid concentrations". Biochemical Systematics and Ecology. 30 (2): 129–138. doi:10.1016/s0305-1978(01)00124-7. ISSN   0305-1978.
  6. Matthews, R. F. (1993). "Delphinium × occidentale". Fire Effects Information System. USDA, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory.
  7. Inouye, David W.; Morales, Manuel A.; Dodge, Gary J. (2002). "Variation in timing and abundance of flowering by Delphinium barbeyi Huth (Ranunculaceae): the roles of snowpack, frost, and La Niña, in the context of climate change". Oecologia. 130 (4): 543–550. Bibcode:2002Oecol.130..543I. doi:10.1007/s00442-001-0835-y. ISSN   0029-8549. JSTOR   4223203. PMID   28547255. S2CID   57592.
  8. Elliott, Susan E.; Irwin, Rebecca E. (2009). "Effects of flowering plant density on pollinator visitation, pollen receipt, and seed production in Delphinium barbeyi (Ranunculaceae)". American Journal of Botany. 96 (5): 912–919. doi: 10.3732/ajb.0800260 . ISSN   0002-9122. PMID   21628244.
  9. Karen Wiese (2013). Sierra Nevada Wildflowers: A Field Guide to Common Wildflowers and Shrubs of the Sierra Nevada, including Yosemite, Sequoia, and Kings Canyon National Parks. Falcon Guides. p. 52. ISBN   978-1-4930-0266-5.
  10. Ralphs, M. H.; Gardner, D. R.; Turner, D. L.; Pfister, J. A.; Thacker, E. (2002). "Predicting toxicity of tall larkspur (Delphinium barbeyi): measurement of the variation in alkaloid concentration among plants and among years". Journal of Chemical Ecology. 28 (11): 2327–2341. doi:10.1023/a:1021013719206. ISSN   0098-0331. PMID   12523572. S2CID   24632700.
  11. Ralphs, M. H.; Bowns, J. E.; Manners, G. D. (1991). "Utilization of Larkspur by Sheep". Journal of Range Management. 44 (6): 619–622. doi:10.2307/4003048. hdl: 10150/644803 . ISSN   0022-409X. JSTOR   4003048.
  12. 1 2 Pfister, James A.; Ralphs, Michael H.; Manners, Gary D.; Gardner, Dale R.; Price, Kermit W.; James, Lynn F. (1997). "Early Season Grazing by Cattle of Tall Larkspur-(Delphinium spp.) Infested Rangeland". Journal of Range Management. 50 (4): 391–398. doi:10.2307/4003306. hdl: 10150/644081 . ISSN   0022-409X. JSTOR   4003306.
  13. 1 2 3 Pfister, James A.; Manners, Gary D.; Gardner, Dale R.; Ralphs, Michael H. (1994). "Toxic Alkaloid Levels in Tall Larkspur (Delphinium Barbeyi) in Western Colorado". Journal of Range Management. 47 (5): 355–358. doi:10.2307/4002329. hdl: 10150/644489 . ISSN   0022-409X. JSTOR   4002329.
  14. Pelletier, S.William; Kulanthaivel, Palaniappan; Olsen, John D. (1989). "Alkaloids of Delphinium barbeyi". Phytochemistry. 28 (5): 1521–1525. doi:10.1016/s0031-9422(00)97779-3. ISSN   0031-9422.
  15. Pfister, JA; Panter, KE; Manners, GD; Cheney, CD (1994). "Reversal of tall larkspur (Delphinium barbeyi) poisoning in cattle with physostigmine". Veterinary and Human Toxicology. 36 (6): 511–4. PMID   7900266.
  16. 1 2 Ralphs, Michael H.; Woolsey, Lee; Bowns, James E. (2004). "Individual Plant Control of Tall Larkspur (Delphinium barbeyi) with Tebuthiuron". Weed Technology. 18 (2): 248–251. doi:10.1614/wt-03-027r2. ISSN   0890-037X. JSTOR   3989211. S2CID   86223556.
  17. Ralphs, Michael H.; Turner, David L.; Mickelsen, Larry V.; Evans, John O.; Dewey, Steven A. (2017-06-12). "Herbicides for Control of Tall Larkspur (Delphinium barbeyi)". Weed Science. 38 (6): 573–577. doi:10.1017/S0043174500051511. ISSN   0043-1745. JSTOR   4045077. S2CID   82201592.