Gentianella amarella subsp. heterosepala (Engelm.) J. Gillett
Family: Gentianaceae
autumn dwarf gentian
[Amarella scopulorum Greene,  more...]
Gentianella amarella subsp. heterosepala image
Photo ©Al Schneider, swcoloradowildflowers.com  

PLANTS: Annuals 5-45 cm tall.

STEMS: rectangular, simple or branched.

LEAVES: basal leaves elliptic to oblanceolate; cauline leaves 3.5-4.5 cm long, lanceolate to oblanceolate, somewhat clasping.

FLOWERS: axillary, I-several in simple or compound umbellate cymes; calyx deeply divided, the tube ca. 1 mm long, the lobes variable in size, 1 usually large and foliaceous often enclosing the others, the margins entire; corolla 11-18 mm long, the tube 6-11 mm long, the lobes 3-7 mm long, the coronal hairs united forming a scale.

NOTES: See the parent taxon for further description. Wet areas in mountain forests of aspen, pine or spruce and on gravelly slopes above timberline: Apache, Coconino, Greenlee cos.; 2500-3550 m (8400-11700 ft); Jun-Sep; CO, NM, NV, UT.

Gentianella amarella subsp. heterosepala image
Photo ©Al Schneider, swcoloradowildflowers.com  
Gentianella amarella subsp. heterosepala image
Photo ©Al Schneider, swcoloradowildflowers.com