Biennials; glaucous, glabrous throughout. Stems branched distally, (4–) 6–16 (–20) dm. Basal leaves: petiole 0.5–1.3 (–1.5) cm, not ciliate; blade spatulate or oblanceolate to obovate, 1.3–4 (–7) cm × (4–) 6–13 (–18) mm, margins usually dentate to repand, rarely entire. Cauline leaves (erect, appressed to stem at least partly); sessile; blade linear to linear-lanceolate, (1.8–) 1.3–4.5 (–6) cm × (1–) 1.7–7 (–8) mm, (base auriculate or sagittate), margins entire. Racemes dense, terminal not elongated in fruit, (flower buds narrowly oblong). Fruiting pedicels usually horizontal to divaricate, rarely divaricate-ascending, straight, slender, (6–) 7–14 (–18) mm, often not flattened at base. Flowers: sepals erect, usually linear to linear-oblong, rarely oblong, 4–6 (–7) × (0.8–) 1–1.5 mm; petals lavender to purple, spatulate to obovate or oblong, (6–) 7–9.5 (–12) × (1.2–) 1.5–2 (–3) mm, margins not crisped, claw differentiated from blade, [slender, 3–4.5 (–5.5) mm, narrowest at base]; nectar glands confluent, subtending bases of stamens; filaments tetradynamous, median pairs (5–) 5.5–7.5 (–8.5) mm, lateral pair (4–) 5–6.5 (7.5) mm; anthers exserted, linear to linear-oblong, 2–3 (–4) mm, not circinately coiled; gynophore 0.5–2.5 (–6) mm. Fruits erect distally, slightly torulose, usually strongly incurved, (overtopping buds), rarely straight and divaricate-ascending, terete, (1.8–) 2.8–5 (–6.3) cm × 0.7–1 mm; ovules 52–70 per ovary; style cylindrical, (0.5–) 0.8–1.5 (–2) mm. Seeds 1–1.3 (–1.5) × 0.5–0.6 (–0.8) mm. 2n = 26.

Phenology: Flowering Jun–Aug.
Habitat: Alkaline flats
Elevation: 1500-2000 m

Distribution

• Generated Map
• Legacy Map

Utah.

Discussion

Thelypodium rollinsii is restricted mostly to Beaver, Carbon, Juab, Millard, Piute, Sanpete, and Sevier counties.

Selected References

None.

Lower Taxa

None.

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