Clumps of 2-12 stems; stem with 11 ribs; corolla funneliform; tepals and anthers dark red; stigma dark green.
Sheets - 1
On rock of igneous dike. With Juniperus monosperma, Fallugia paradoxa, Rhus trilobata, Bouteloua curtipendula. Clumps of 2-12 stems; stem with 11 ribs; corolla funneliform; tepals and anthers dark red; stigma dark green.