Region: Mexico, USA, New Mexico, Texas.
Habitat: altitude 500 to 2000 m
Content: β‐
Pinene (20.6%), camphor (18.5%), dodecane (14.0%), 1,8‐cineole (5.0%), and α‐calacorene (5.0%); monoterpene compounds.
BotanyHerb; procumbent; to 0.4 m.
Stem: slightly striate, velutinous with yellowish trichomes. Leaves: petiole 1 to 3 cm; ovate to hastate, 0 to 3 lobed, 1-4 × 2-4 cm, base cordate to hastate, sinus 0.2-0.6 cm, apex obtuse to acute; surfaces velutinous with yellowish trichomes; venation palmate.
Inflorescences: axillary, solitary flowers; peduncle bracteolate, 1-2 cm; bracteoles lanceolate, to 6 mm. Flowers: calyx brown-purple, straight; utricle angled upward, ovoid, to 0.7 × 0.4 cm; syrinx funnel-shaped, 2 mm; tube upright, cylindric, 1.5 × 0.3 cm; annulus absent; limb purplish, 1-lobed, lobe narrowly cordate to narrowly ovate, 1-6 × 0.9 cm, papillate; gynostemium 5-lobed, ovoid, 5-10 mm; anthers 5; ovary 5-locular, 1-2 cm; flowering all year.
Fruit: capsule ± globose, 1.2 × 1-3 cm, dehiscence acropetal; valves 5; septa absent.
Seeds: flat, triangular, 0.4 × 0.5 cm.