''Lupinus pratensis'' is a species of lupine known by the common name Inyo meadow lupine. It is

endemic Endemism is the state of a species being found in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also found elsew ...

California California is a U.S. state, state in the Western United States, located along the West Coast of the United States, Pacific Coast. With nearly 39.2million residents across a total area of approximately , it is the List of states and territori ...

, where it grows in the central

Sierra Nevada The Sierra Nevada () is a mountain range in the Western United States, between the Central Valley of California and the Great Basin. The vast majority of the range lies in the state of California, although the Carson Range spur lies primarily ...

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 tall. Each palmate leaf is made up of 5 to 10 narrow leaflets sometimes exceeding long. The leaves are borne on long petioles which can reach in length. The herbage is green and coated in thin hairs. The

inflorescence An inflorescence is a group or cluster of flowers arranged on a stem that is composed of a main branch or a complicated arrangement of branches. Morphologically, it is the modified part of the shoot of seed plants where flowers are formed o ...

is a dense

raceme A raceme ( or ) or racemoid is an unbranched, indeterminate type of inflorescence bearing flowers having short floral stalks along the shoots that bear the flowers. The oldest flowers grow close to the base and new flowers are produced as the s ...

of many

flower A flower, sometimes known as a bloom or blossom, is the reproductive structure found in flowering plants (plants of the division Angiospermae). The biological function of a flower is to facilitate reproduction, usually by providing a mechani ...

s 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 A legume () is a plant in the family Fabaceae (or Leguminosae), or the fruit or seed of such a plant. When used as a dry grain, the seed is also called a pulse. Legumes are grown agriculturally, primarily for human consumption, for livestock f ...

pod around long. There are two varieties of this species; the rarer, variety, ''eriostachyus'', is known only from the drainage of

Big Pine Creek Big Pine Creek may refer to: * Big Pine Creek (California), Inyo County, California * Big Pine Creek (Indiana) Big Pine Creek is a creek in northwestern Indiana, USA. It begins in Round Grove Township in southwestern White County and flows gene ...

Inyo County Inyo County () is a county in the eastern central part of the U.S. state of California, located between the Sierra Nevada and the state of Nevada. In the 2020 census, the population was 19,016. The county seat is Independence. Inyo County is o ...

References

External links

Jepson Manual TreatmentPhoto gallery
pratensis Endemic flora of California Flora without expected TNC conservation status {{Lupinus-stub