2. Thelypodium crispum Greene ex Payson, Ann. Missouri Bot. Gard. 9: 264. 1923; Thelypodiopsis crispa (Greene ex Payson) O. E. Schulz, Bot. Jahrb. Syst. 66: 98. 1933; Thelypodium brachycarpum Torrey var. crispum (Greene ex Payson) Jepson, Fl. Calif. 2: 40. 1936. TYPE: United States, Nevada, Ormsby Co., Eagle Valley, 1446 m, 28 June 1902, C. F. Baker 1191 (holotype, RM!; isotypes, CAS!, GH!, MICH!, MO!, NY!, POM!, RM!, UC!, US!).

     Herbs, biennial or short-lived perennial, often glaucous. Stems (0.9–)1.3–7(–12) dm, erect, branched, solid, somewhat glaucous, glabrous or pubescent at base. Basal leaves petiole (0.7–)2–8.5 cm, ciliate; blade oblanceolate to spatulate, rarely obovate or lanceolate, (1.5–)2.2–15(–25) x (0.6–)1–3.5(–5) cm, pinnately lobed to lyrate, sometimes dentate or entire; middle and upper cauline leaves sessile, linear to lanceolate, sagittate or auriculate at base, appressed to stem, entire or rarely dentate. Racemes densely flowered, elongated in fruit; flower buds narrowly oblong; fruiting pedicels straight or slightly curved, erect to erect-ascending, appressed to rachis, slender, not flattened at base, (1.5–)2–5(–10) mm. Sepals oblong to linear-oblong, erect to ascending, (3–)3.5–6(–8) x (0.8–)1–1.8(–2) mm; petals white to lavender, linear to narrowly oblanceolate, (6–)6.5–11(–14.5) x 0.5–0.7(–1) mm, strongly crisped, differentiated into blade and claw; claw 2–4 mm, slender; filaments subequal, (2.5–)4.5–8.5(–10.5) mm; anthers linear to narrowly oblong, 2.–3.5(–4.5) mm, circinately coiled, exserted, apiculate; nectar glands surrounding base of lateral filaments, median glands absent; ovules 22–50 per ovary. Fruits (0.6–)1–2.5(–4.2) cm x 0.7–1(–1.8) mm, divaricate to ascending, terete, straight or slightly curved, torulose; gynophore 0.5–1.5(–3.5) mm; style cylindrical, 0.5–1.5(–2.5) mm; stigma entire. Seeds 1–1.5(–1.7) x 0.5–0.7(–1) mm.

Flowering: Jun–Aug.

Habitat: alkaline meadows and desert flats, mineralized ground near hot springs, desert shrub communities.

Elevation: 1200–2950(–3200) m.

Distribution: United States (E California, W Nevada).