Flora of North America species comparison

several from base, prostrate to decumbent, (usually unbranched, rarely branched distally), 1–3 dm.

several from base, ascending to erect (arising laterally, unbranched), 0.5–1(–2.5) dm.

(tufted);

blade broadly obovate, 1–2 cm, margins entire or with 1 or 2 broad teeth, (apex rounded to obtuse).

(ascending to erect, petiole slender);

blade oblanceolate to obovate, 3–8 cm, (base tapering to petiole), margins incised or dentate with broad teeth, (apex acute to obtuse).

blade oblanceolate to nearly oblong, similar to basal, (base cuneate), margins entire.

blade linear-oblanceolate to oblanceolate, 1–2 cm, margins entire.

(secund), loose, (elongated in fruit).

dense (elongated or not in fruit, 2.5–8.5(–10) cm).

sepals (yellowish), elliptic to lanceolate, (2–)3–4 mm;

petals spatulate, (3.9–)5–7 mm.

sepals (greenish yellow), lanceolate, 6–8.5 mm, (saccate and cucullate);

petals spatulate to narrowly oblanceolate, 7–10(–12) mm.

(recurved), 6–8(–12) mm.

(divaricate, straight), 5–11(–15) mm, (rigid, fruits not pendent on arching pedicels).

(usually pendent), elliptic to subglobose, usually slightly compressed (latiseptate), 3–4 mm;

valves densely pubescent, sometimes with scattered trichomes inside;

ovules 4 per ovary;

style ca. 3 mm.

didymous, sides curved and angular, highly inflated, 6–16 × 8–12 mm, (papery, apical sinus broad and concave);

valves (retaining seeds after dehiscence, distinctly 2-keeled on side away from replum), pubescent, trichomes appressed;

replum linear to linear-lanceolate, as wide as or wider than fruit, apex acute;

ovules 4–8 per ovary;

style 2–9 mm, (usually not exceeding sinus).

somewhat flattened.

slightly flattened, (ovate).