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manzanita subspeciesArctostaphylos manzanita subsp. elegans (Jepson) P. V. Wells Madroño 19: 201. 1968 ,. V. Thomas Parker, Michael C. Vasey, Jon E. Keeley Common

subspeciesArctostaphylos glandulosa subsp. crassifolia (Jepson) P. V. Wells Madroño 19: 205. 1968,. V. Thomas Parker, Michael C. Vasey, Jon E. Keeley Conservation

Arctostaphylos nummularia subsp. sensitiva (Jepson) P. V. Wells Arctostaphylos nummularia var. sensitiva (Jepson) McMinn Treatment appears in FNA Volume 8

placed in Cotyledon, Echeveria, or Sedum; A. Berger (1930), P. A. Munz (1935), and W. L. Jepson (1909–1943, vol. 2) treated Dudleya species under Echeveria

WeedyIllustrated Basionym: Zygophyllum tridentatum de Candolle in A. P. de Candolle and A. L. P. P. de Candolle, Prodr. 1: 706. 1824 Synonyms: Larrea divaricata

subspeciesArctostaphylos viscida subsp. mariposa (Dudley) P. V. Wells Madroño 19: 204. 1968 ,. V. Thomas Parker, Michael C. Vasey, Jon E. Keeley Common names:

EndemicConservation concern Synonyms: Arctostaphylos pilosula subsp. pismoensis P. V. Wells Arctostaphylos wellsii Treatment appears in FNA Volume 8. Treatment on

Poa fendleriana, P. secunda, and P. wheeleri are important native forage species in western North America; P. alpina, P. arctica, and P. glauca are common

manuals recognize two introduced species, V. sativa and V. angustifolia, and one or more varieties. In Flora Europaea (P.W. Ball 1968), both of these, plus several

vegetation. Madroño 22: 333--360. Brenchley, P., ed. 1984. Fossils and Climate. New York. Bretting, P. K. and G. P. Nabhan. 1986. Ethnobotany of devil's claw

1920. He concentrated on the prairie flora as well as on the flora of boreal and arctic Canada. Morton P. Porsild (1872--1956) was then actively collecting