Literature | Bourell 1981; Cooke 1941; Harpel 1980a; Harthill et al. 1979; Holmberg 1969; Ireland 1982; Jamieson 1969; Kellman 2003; Koch 1950a, 1951e, 1958; Koch and Ikenberry 1954; Lawton 1971; Lesquereux 1868; Long 1978; McGrew 1976; Shevock and Toren 2001; Showers 1982; Smith 1970; Spjut 1971; Strid 1974; Sullivant 1856; Toren 1977; Watson 1880; Yurky 1990, 1995. |
Illustrations | Malcolm et al. 2009 p. 38; Flowers 1973; Ignatov and Ignatova 2003; Ignatov and Smith Merrill 1995; Ireland 1982; Lawton 1971; Ochyra 1998a; Sharp et al. 1994; Smith 1971, 1978. |
Bioregions | CaR, CW, MP, NW, SN, SNE, SW. |
Vouchers | Del Norte Co.: Forest Road 4803, Siskiyou National Forest, Norris 70904; San Francisco Co.: Glen Canyon, San Miguel Hills, Shevock 18882 & 18892; Santa Barbara Co.: water Canyon, Santa Rosa Island, Channel Islands National Park, Shevock & Rodriquez 20808; Santa Cruz Co.: Highway 9 about 1.5 miles north of Boulder Creek, Norris 55572; Siskiyou Co.: Soda Creek road about 4 miles northeast of Interstate 5 near Dunsmuir, Shasta-Trinity National Forest, Norris 84810; Sonoma Co.: South Ridge Trail above Lake Sonoma at Skaggs Springs Road, Norris 86916; Tulare Co.: Grapevine Grade along County Road M-15, between White River and California Hot Springs, Shevock 6766. |
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