Hosackia rosea

Classification System: APG IV

Superregnum: Eukaryota
Regnum: Plantae
Cladus: Angiosperms
Cladus: Eudicots
Cladus: Core eudicots
Cladus: Rosids
Cladus: Eurosids I
Ordo: Fabales

Familia: Fabaceae
Subfamilia: Faboideae
Tribus: Loteae
Genus: Hosackia
Species: Hosackia rosea
Name

Hosackia rosea Eastw. Proc. Calif. Acad. Sci. ser. 2, 6: 424, tab. 55. 1896
Synonyms

Homotypic
Lotus aboriginus Jeps. Fl. Calif. [Jepson] 2: 315. (1936)

References

Eastwood, A. 1936. Proceedings of the California Academy of Sciences, Series 2, 6(27): 424, pl. 55.
Brouillet, L. 2016. Hosackia rosea, in Jepson Flora Project (eds.) Jepson eFlora, [1]. Accessed November 08, 2016.
International Plant Names Index. 2016. Hosackia rosea. Published online. Accessed: Nov. 8 2016.

Hosackia rosea, synonym Lotus aboriginus, is a species of legume native to North America.[1] It is known by the common names rosy bird's-foot trefoil and thicket trefoil. It grows in mountains and canyons, often in moist areas. It is a perennial herb lined with leaves each made up of pairs of oval leaflike leaflets 1 to 3 cm long. The inflorescence is a spray of six to 10 white or pink flowers each about 1 cm long. The flower is somewhat tubular, encased at the base in a calyx of sepals and lobed at the mouth. The fruit is a hairless elongated legume pod 3–5 cm long.

It is believed that Hosackia rosea could be a potential host plant for the caterpillars of the critically endangered lotis blue butterfly (syn. Lycaeides idas lotis, Lycaeides argyrognomon lotis, Plebejus anna lotis).[2]
References

"Hosackia rosea Eastw.", Plants of the World Online, Royal Botanic Gardens, Kew, retrieved 2018-02-05
U.S. Fish and Wildlife Service. "Lotis blue butterfly (Lycaeides argyrognomon lotis) 5-Year Review" (PDF). Retrieved 2022-01-14.