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and the silhouette of Thaynes Peak. Deso Trail, 6/3/08
Bonneville, or Purple, Peavine (Lathyrus brachycalyx) climbs up the oakbrush. The bloom starts in the lower foothills in May and continues later at higher elevations.
The all-Greek species name means "short-calyxed super-attractant", the latter refererring to supposedly aphrodisiac properties of beans of some Mediterranean peavines.