Annuals; (glaucous), pilose throughout or at least basally, or glabrous distally. Stems (simple or few to several from base), branched distally, 1.5-10 dm, (pilose basally). Basal leaves (soon withered); rosulate; petiole 0.5-2.5 cm; blade oblanceolate, 5-15 cm × 10-20 mm, margins entire or dentate. Cauline leaves sessile; blade oblong, base auriculate to amplexicaul, margins entire. Racemes slightly dense. Fruiting pedicels horizontal to divaricate-ascending, often straight, 7-20 mm, (glabrous or sparsely pilose). Flowers: sepals erect, purple, 5-7 × 2-3 mm; petals purple, suborbicular to broadly obovate, 14-17 × 5-9 mm, claw 4-7 mm; median filament pairs 4-7 mm; anthers linear, 3-4 mm; gynophore (slender), 3-6 mm. Fruits erect to ascending, straight, torulose, 5-9 cm × 1-1.2 mm; style cylindrical, (slender), 2-3 mm; stigma 2-lobed. Seeds ca. 1.5 × 0.9 mm.

Flowering May-Jun. Pinyon-juniper woodlands, sagebrush communities; of conservation concern; Colo.

Thelypodiopsis juniperorum is known only from Gunnison and Montrose counties.