Pickeringia
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Scientific classification 
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Pickeringia is a monotypic genus[1][2] of flowering plants in the legume family, Fabaceae. It was recently assigned to the unranked, monophyletic Cladrastis clade.[3][4][5] It was named after the naturalist Charles Pickering. Its only species is Pickeringia montana, which is known by the common name chaparral pea. It is native to California, where its distribution extends along the Coast Ranges and the Sierra Nevada foothills, as well as the Peninsular Ranges of Southern California and northern Baja California. It is also known from Santa Cruz Island.[6][7]
It is one of very few legumes native to the chaparral habitat. Its nitrogen-fixing ability helps it thrive in rocky, sandy soil. The plant is also well-suited to a landscape of hills, slopes, and recently burned areas; its roots spread quickly and help anchor loose soil, preventing erosion.
Description
The chaparral pea rarely sprouts from seed. More often it sends up new stems from roots growing outward from the mother plant. It forms low, dense, thorny thickets of shiny dark green leaves. In spring and summer the plant blooms in bright magenta flowers. It bears pods containing pealike seeds.
There are two subspecies of chaparral pea:
- Pickeringia montana subsp. montana is widespread in California.
- Pickeringia montana subsp. tomentosa, sometimes called woolly chaparral pea, is limited to the hills of southern California.
References
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- ^ Page Module:Citation/CS1/styles.css has no content."ILDIS LegumeWeb entry for Pickeringia". International Legume Database & Information Service. Cardiff School of Computer Science & Informatics. Retrieved 12 February 2014.
- ^ Page Module:Citation/CS1/styles.css has no content.USDA; ARS; National Genetic Resources Program. "GRIN species records of Pickeringia". Germplasm Resources Information Network—(GRIN) [Online Database]. National Germplasm Resources Laboratory, Beltsville, Maryland. Retrieved 12 February 2014.
- ^ Page Module:Citation/CS1/styles.css has no content.Cardoso D, Pennington RT, de Queiroz LP, Boatwright JS, Van Wyk BE, Wojciechowski MF, Lavin M (2013). "Reconstructing the deep-branching relationships of the papilionoid legumes". S Afr J Bot. 89: 58–75. doi:10.1016/j.sajb.2013.05.001. hdl:10566/3193.
- ^ Page Module:Citation/CS1/styles.css has no content.Cardoso D, de Queiroz LP, Pennington RT, de Lima HC, Fonty É, Wojciechowski MF, Lavin M (2012). "Revisiting the phylogeny of papilionoid legumes: new insights from comprehensively sampled early-branching lineages". Am J Bot. 99 (12): 1991–2013. doi:10.3732/ajb.1200380. PMID 23221500.
- ^ Page Module:Citation/CS1/styles.css has no content.Wojciechowski MF (2013). "The origin and phylogenetic relationships of the Californian chaparral 'paleoendemic' Pickeringia (Leguminosae)". Syst Bot. 38 (1): 132–142. doi:10.1600/036364413X662024. S2CID 86331839.
- ^ Howard JL. 1992. Pickeringia montana. In: Fire Effects Information System. USDA FS. Rocky Mountain Research Station, Fire Sciences Laboratory.
- ^ Pickeringia montana. Jepson eFlora, The Jepson Herbarium. Retrieved 14 September 2023.
External links
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