Flora of North America species comparison

several from base, erect or somewhat decumbent, (unbranched), 1–3.5 dm.

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

(petiole slender, usually incised or with broad teeth along petiole);

blade obovate, 4–6 cm, margins entire.

(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 or broader, 1.5–2.5 cm, margins entire or sparsely dentate, (apex acute).

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

somewhat loose, (5–15 cm).

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

sepals oblong, 5–7 mm;

petals (lemon yellow), spatulate, 9–12 mm.

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

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

(spreading or ascending, curved, fruits not pendent), 10–20 mm.

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

didymous, obreniform, moderately inflated, angustispetate, (8–)10–12(–15) × 10–14(–16) mm, (papery, not keeled, basal sinus absent, apical sinus broad and open);

valves (retaining seeds after dehiscence, rounded or irregular), loosely pubescent, trichomes spreading;

replum broadly lanceolate, as wide as or wider than fruit, apex acute;

ovules 8 per ovary;

style 1–2 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).

flattened.

slightly flattened, (ovate).

= 8.