Arabis platysperma var. howellii (S. Watson) Jeps.
Brassicaceae
C.H.Q. (1960)
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CHAS H. QUIBELL
2731
1953-07-11
7/11/53
United States, California, Fresno, Foot of the first cliffs at top of glaciated granite benches s.e. side Mono Crk. at e. end Vermillion Val.; about 8000', above prospective reservoir.
Floor Vermillion;-Lodgepole For. and Carex exserta mead. ice planed granite canyon benches upstream:-Jeffrey Pines, Junipers, Lodgepoles; n.w. wall Jeffreys, Junipers on dry granite: s.e. wall Jeffreys, Junipers, Aspen scrub and (this date) many wet rills and seepages; Firs above. This little crucifer in moss pads in crevices of sheer granite with Heuchra and a little white Caryophyll, freq.