| Delphinium hansenii | |
|---|---|
 | |
Scientific classification  | |
| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Order: | Ranunculales |
| Family: | Ranunculaceae |
| Genus: | Delphinium |
| Species: | D. hansenii |
| Binomial name | |
| Delphinium hansenii | |
Delphinium hansenii is a species of larkspur known by the common names Eldorado larkspur and Hansen's delphinium. It is endemic to California, where it grows in mountains, valleys, and desert from the southern Cascade Range to the Mojave Desert.
This wildflower usually grows between one half and one meter in height, although it can grow much taller. The deeply lobed leaves are hairy, especially on the undersides. The inflorescence has usually over 25 flowers grouped close together at the top of the stem and held on long pedicels. The flowers are white to light blue or light pink, or bicolored, and vary in size. The inner petals may be quite hairy. The flowering time is between the months of March and May. It has a chromosome number of 2n=32, which means that the total number of chromosomes in diploid cells is 32. [2] The fruit type is a follicle. It is a perennial herb. [3]
It could be confused with Delphinium hesperium, but is it easily identifiable by the unique seeds of the Eldorado larkspur. The seeds are very unique among members of its genus, bearing many prism-like raised structures. Most other species can also be distinguished from D. hansenii from its seeds. [4]
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.
Delphinium parishii, the desert larkspur, is a flowering plant in the family Ranunculaceae native to the Mojave Desert, in the southwestern United States and northwest Mexico. In Southern California it is also found in the Tehachapi Mountains, Transverse Ranges, and eastern Sierra Nevada.
Calliandra eriophylla, commonly known as fairy duster, is a low spreading shrub which is native to deserts and arid grasslands in California, Arizona, New Mexico, Texas, and Mexico.
Delphinium patens is a species of larkspur known by the common names zigzag larkspur and spreading larkspur. It is a wildflower limited mainly to California. Though not yet confirmed there, it is expected in Baja California. Plants grow typically 20 to 50 centimeters tall and bear up to 36 flowers each. The stems are mostly hairless, have reddish bases, and bears leaves on the lower half. Each leaf is divided into 3 to 9 lobes. The flower has dark blue sepals, the latter ones reflexed. The spur at the back of the flower is 4 to 8 millimeters long. The cleft at the center of the flower has white or yellowish scattered hairs. The elongated fruit is one or two centimeters long and contains pitted seeds.
Delphinium andersonii is a species of perennial larkspur known as Anderson's larkspur. This wildflower is native to western North America, where it can be found in the Great Basin and the Sierra Nevada.
Delphinium californicum is a species of larkspur known as California larkspur. This wildflower is endemic to California, where it is a resident of the chaparral slopes of the San Francisco Bay Area and Central Coast.
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.
Delphinium depauperatum is a species of larkspur known by the common names slim larkspur and dwarf larkspur. This wildflower is native to western North America where it is found in mountain meadows. It grows from a short root and erects a stem usually under 40 centimeters in maximum height. The small leaves are divided into lobes and are usually located about the base of the plant. Toward the top of the stem are flowers on long pedicels, with usually not more than 20 flowers per plant. The flowers generally have deep dark blue sepals which are flat and extended to the sides, and petals which are mainly the same color except for the top two, which may be lighter blue to white. The spur is between one and two centimeters long.
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.
Delphinium trolliifolium is a species of larkspur known by the common names poison delphinium, cow poison, and Columbian larkspur. It is native to Washington, Oregon, and northern California. This wildflower reaches one half to just over one meter in height. It has large, shiny, deeply lobed leaves. The top half of the stem is an inflorescence of widely spaced flowers on long pedicels, the longest over nine centimeters long. The flowers are usually deep brilliant blue. The upper two petals may be milky white. The spur exceeds two centimeters in length in the largest of the flowers. This plant is toxic as suggested by the common names, but most larkspur species are toxic to some degree.
Delphinium variegatum is a species of larkspur known by the common name royal larkspur. It is endemic to California, where it grows in mountains, valley and coast in woodlands and grasslands. On the forest floor of California oak woodlands typical plant associates are Calochortus luteus, Cynoglossum grande and Calochortus amabilis.
Lupinus brevicaulis is a species of lupine known by the common names shortstem lupine and sand lupine. It is native to the southwestern United States, including Oregon, California, Nevada, Utah, Colorado, Arizona, and New Mexico, where it grows in many types of sandy habitat.
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.
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.
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. It is native to the interior western United States, where it occurs in the states of Arizona, Colorado, New Mexico, Utah, and Wyoming.
Delphinium nuttallii is a species of Delphinium native to Washington and Oregon of the western United States. Its common names include Nuttall's larkspur and Columbia larkspur.
Delphinium caseyi, also known as Casey's larkspur, is a flowering plant within the family Ranunculaceae.
Delphinium treleasei, commonly known as named glade larkspur or Trelease's larkspur, is a perennial flowering plant found it temperate areas of the eastern United States. It is native to Missouri and Arkansas where it is often situated in limestone glades but is not common in North America. It is endemic to Ozark highlands in eight southwestern Missouri counties and eight counties in northwestern Arkansas. D. treleasei is a vascular, seed plant, part of the buttercup family (Ranunculaceae). The name Delphinium treleasei originates from the Greek "delphis" which means dolphin in reference to the flower shape of many buttercups and the specific epithet "treleasei" honors William Trelease who was director of the Missouri Botanical Garden from 1889 to 1912.
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.
Delphinium madrense, commonly known as Sierra Madre larkspur and Edwards' Plateau larkspur, is a species of plant in the family Ranunculaceae. It is native to the south-western United States (Texas) and northern Mexico.
 | This Ranunculales article is a stub. You can help Wikipedia by expanding it. |
