Lupinus arboreus, the yellow bush lupine (US) or tree lupin (UK), is a species of flowering plant in the legume family Fabaceae.
Lupinus excubitus is a species of lupine known as the grape soda lupine. Its common name refers to its sweet scent, which is said to be very reminiscent of grape soda. This species and its variants are found in Southwestern United States, especially in California and Nevada, e.g., Death Valley and Joshua Tree National Parks, and northwestern Mexico.
Lupinus adsurgens is a species of lupine known by the common name Drew's silky lupine. It is native to the Sierra Nevada and coastal mountain ranges of northern California and southern Oregon, where it grows in forest and other mountain habitat.
Lupinus albicaulis is a species of lupine known by the common name sicklekeel lupine. It is native to the western United States from Washington to California, where it grows mostly in mountain habitat. It is a hairy, erect perennial herb often exceeding a meter in height. Each palmate leaf is made up of 5 to 10 leaflets each up to 7 centimetres long. The inflorescence is up to 44 centimetres (17 in) long, bearing whorls of flowers each 1 to 1.6 centimetres long. The flower is purple to yellowish or whitish in color and has a sickle-shaped keel. The fruit is a silky-hairy legume pod up to 5 centimetres (2 in) long containing several seeds. In Oregon, where the plant is native, it has been cultivated for several uses, including reforestation and revegetation of roadsides and other disturbed habitat.
Lupinus andersonii is a species of lupine known by the common name Anderson's lupine.
Lupinus antoninus is a rare species of lupine known by the common name Anthony Peak lupine. It is endemic to northern California, where it is known from only four occurrences in the North Coast Ranges, including near Anthony Peak.
Lupinus cervinus is a species of lupine known by the common name Santa Lucia lupine. It is endemic to the Santa Lucia Mountains in the Central Coast Ranges in California, where it is an uncommon member of the flora in the mountain forests. This is a hairy gray-green perennial herb growing up to 30–70 centimetres (12–28 in) tall. The erect stem is surrounded by clusters of spreading leaves. Each palmate leaf is made up of 4 to 8 leaflets up to 8 centimetres (3.1 in) long and 3 centimetres (1.2 in) wide, which is wider than the leaflets of most lupines. The inflorescence bears many flowers, sometimes in whorls, each between 1 centimetre (0.39 in) and 2 centimetres (0.79 in) long. The flower is often bright pink, but may be shades of blue to nearly white. There is often a yellow patch on the banner. The fruit is a hairy legume pod up to 6 centimetres (2.4 in) long.
Lupinus chamissonis is a species of lupine known by the common name Chamisso bush lupine. It is endemic to California, where it is known from most of the length of the coastline. It grows in sand dunes and other immediate coastal habitat.
Lupinus croceus is a species of lupine known by the common names saffron-flowered lupine and Mt Eddy Lupine. It is endemic to the northernmost mountains of California, clustering in the Klamath Mountains, where it grows in generally dry, rocky habitat.
Lupinus duranii is a species of lupine known by the common name Mono Lake lupine. It is endemic to California, where it is known mainly from the eastern slopes of the Sierra Nevada in western Mono County. Its distribution includes Mammoth Mountain and the hills around Mono Lake, and its habitat has gravelly, pumice-rich soils of volcanic origin.
Lupinus elatus is a species of lupine known by the common name tall silky lupine. It is endemic to California, where it is known from the Transverse Ranges above Los Angeles, and possibly also from the southernmost slopes of the Sierra Nevada. Its habitat includes dry areas in the forests of the mountains. This is an erect perennial herb reaching a maximum height near 90 centimeters. Each palmate leaf is made up of 6 to 8 leaflets up to 8 centimeters long. The herbage is coated in silvery silky to woolly hairs. The inflorescence is a long raceme of flowers, each about a centimeter long and arranged in whorls. The flower is purple or blue with a pale yellow patch on its banner. It yields a legume pod 2 or 3 centimeters long. This is a host plant to the Southern California native butterfly subspecies known as the San Gabriel Mountains Arrowhead Blue.
Lupinus hirsutissimus is a species of lupine known by the common names stinging annual lupine or stinging lupine. It is native to the coastal mountains of Baja California and Southern California as far north as the San Francisco Bay Area. It grows on dry mountain slopes, including areas that have recently burned, and chaparral and woodlands habitats.
Lupinus hyacinthinus is a species of lupine known by the common name San Jacinto lupine. It is native to the mountains of southern California and adjacent Baja California, where it grows in dry areas, often in pine forests.
Lupinus lapidicola is a rare species of lupine known by the common name Mt. Eddy lupine. It is endemic to California, where it is known from only a few locations in the northernmost mountain ranges, including Mount Eddy in the Klamath Mountains. It is a small, compact perennial herb forming mats no more than 10 centimetres (3.9 in) tall. Each palmate leaf is divided into 6 to 8 leaflets up to 2 centimetres (0.79 in) long. The herbage is coated in silvery silky hairs. The inflorescence is a small bundle of flower whorls, each flower about a centimeter long and purple in color with a yellowish patch on its banner.
Lupinus littoralis is a species of lupine known by the common name seashore lupine. It is native to the coastline of western North America from British Columbia to northern California, where it grows in sandy habitat. It is a low perennial herb or subshrub growing in a clump or mat no more than 30 centimetres (12 in) tall. Each palmate leaf is divided into 5 to 9 leaflets up to 3.5 centimetres (1.4 in) long. The herbage is coated in long, shaggy whitish or silvery hairs. The inflorescence is raceme of whorled flowers each around a centimeter long. The flower is purple in color with a white patch on its banner that fades pinkish. The fruit is a hairy legume pod 3 or 4 centimeters long containing up to 12 seeds.
Lupinus padre-crowleyi is a rare species of lupine known by the common names Father Crowley's lupine and DeDecker's lupine. It is endemic to California, where it is known only from the eastern slopes of the Sierra Nevada and the high plateau below along the western border of Inyo County. It grows in the granite soils of the mountain forests and scrub. It has been noted at fewer than 20 locations. This is a perennial herb growing an erect inflorescence from a mat of silvery, woolly-haired herbage, reaching maximum heights over half a meter. Each palmate leaf is made up of 6 to 9 leaflets up to 7.5 centimeters long. The inflorescence is a raceme of whorled flowers each just over a centimeter long. The flower is cream to pale brownish yellow in color. The fruit is a silky-haired legume pod containing black-mottled white seeds.
Lupinus peirsonii is a rare species of lupine known by the common names Peirson's lupine and long lupine. It is endemic to the San Gabriel Mountains of Los Angeles County, California, where it grows in woodland and forest habitat. It is an erect, branching perennial herb growing 30 to 60 centimeters tall. Each palmate leaf is made up of 5 to 8 fleshy leaflets up to 7 centimeters long. The herbage is coated in silvery silky hairs. The inflorescence is a raceme of whorled yellow flowers each about a centimeter in length. The fruit is a silky-haired legume pod 3 or 4 centimeters long.
Lupinus pratensis is a species of lupine known by the common name Inyo meadow lupine. It is endemic to California, where it grows in the central Sierra Nevada and adjacent plateau and valleys to the east. It grows in relatively moist habitat, such as streambanks and spring meadows. This is an erect perennial herb growing 30–70 centimetres (12–28 in) tall. Each palmate leaf is made up of 5 to 10 narrow leaflets sometimes exceeding 10 centimetres (3.9 in) long. The leaves are borne on long petioles which can reach 25 centimetres (9.8 in) in length. The herbage is green and coated in thin hairs. The inflorescence is a dense raceme of many flowers each around a centimeter long. The flower is dark blue or purple with a reddish or orange patch on its banner. The fruit is a hairy legume pod around 2 centimetres (0.79 in) long.
Lupinus sericeus is a species of flowering plant in the legume family known by the common name silky lupine or Pursh's silky lupine. It is native to western North America from British Columbia to Arizona and east to Alberta and Colorado.
Lupinus lemmonii, commonly known as Lemmon's lupine, is a species of perennial plant in the family of Fabaceae that is native to Arizona.
