OregonFlora species comparison

(2)5–16(20) cm, pubescent or sometimes glabrous above.

cauline; (0.5)1–2.2(2.8) cm, persistent as pectinate spines;

lobes 2–5 per side, linear, with prominent midveins and a narrow band of blade; terminal lobes (2)4–7(10) × (0.3)0.5–1(1.5) mm;

petioles 0–3(5) mm, winged.

racemes;

bracts 0, fruiting pedicels divaricate-ascending; (2)4–7(10) mm.

sepals erect or ascending, caducous, oblong-ovate, 1.5–2 mm;

lateral pair not saccate;

petals obovate to oblanceolate, 3–4 × 1.5–2 mm; > sepals, white; aging to pink, not clawed;

tips obtuse, nectar glands confluent, subtending bases of all filaments;

stamens 6, tetradynamous;

anther tips obtuse;

ovules 30–46 per ovary;

septa complete;

styles (0.2)0.4–0.7(1) mm;

stigmas capitate; entire.

dehiscent siliques or silicles, angustiseptate, linear or oblong; (2)4–13(18) × 0.9–2 mm, unsegmented;

valves not veined, not torulose; replums rounded.

30–46, uniseriate, oblong, 0.7–0.9 × 0.3–0.5 mm, not mucilaginous when wetted; wingless;

cotyledons incumbent.

dendritic mixed with fewer 2-rayed and larger simple trichomes.