''Lupinus peirsonii'' is a rare species of

lupin ''Lupinus'', commonly known as lupin, lupine, or regionally bluebonnet, is a genus of plants in the legume family Fabaceae. The genus includes over 199 species, with centres of diversity in North and South America. Smaller centres occur in No ...

e known by the common names Peirson's lupine and long lupine. It is

endemic Endemism is the state of a species being found only 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 foun ...

to the

San Gabriel Mountains The San Gabriel Mountains () are a mountain range located in Los Angeles and San Bernardino counties, California, United States. The mountain range is part of the Transverse Ranges and lies between the Los Angeles Basin and the Mojave Desert ...

of Los Angeles County, California, where it grows in woodland and forest habitat. It is an erect, branching perennial herb growing tall. Each palmate leaf is made up of five to eight fleshy leaflets up to 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 long.

References

External links

Jepson Manual Treatment

Photo gallery
endemic flora of California flora without expected TNC conservation status Lupinus, peirsonii natural history of Los Angeles County, California natural history of the California chaparral and woodlands natural history of the Transverse Ranges San Gabriel Mountains {{Lupinus-stub