plants on steep slope of accumulated volcanic rhyolitic tuff rubble and alluvium of lower canyon in deciduous small tree forest with Acacia, Ipomoea, Bursera, Celtis, Lysiloma, Tecoma. Some place this plant as a synonym under the more tropical species, S. houstonii.
plants on steep slope of accumulated volcanic rhyolitic tuff rubble and alluvium of lower canyon in deciduous small tree forest with Acacia, Ipomoea, Bursera, Celtis, Lysiloma, Tecoma. Some treat this plant as a synonym under the more tropical species, S. houstonii.