Flora of North America species comparison

erect, often branched distally, (ribbed), (0.7–)1.5–10(–15) dm.

erect, unbranched or branched (few to several) basally, 0.4–6.5 dm.

(withered by fruiting), similar to cauline.

blade spatulate to broadly oblanceolate, 2.5–7 cm × 3–10 mm, base attenuate, margins dentate or subentire, apex often obtuse, (surfaces pubescent adaxially, trichomes 2 or 3–5-rayed).

(median and distal) shortly petiolate or sessile;

blade (lanceolate, linear, or elliptic-oblong, (1–)2–7(–11) cm × (2–)5–12(–23) mm, base cuneate) margins usually subentire or denticulate, rarely sinuate-dentate, (apex acute or obtuse).

(distal) sessile;

blade margins often entire.

considerably elongated in fruit.

considerably elongated in fruit.

sepals oblong, 1.8–3.2 mm, lateral pair not saccate basally;

petals yellow, narrowly spatulate, 3–5.5 × 1.5–2 mm, claw 1.5–3.5 mm, apex rounded;

median filaments 2–3.5 mm;

anthers oblong, 0.5–0.7 mm.

sepals linear-oblong to oblong, 8–12 mm, lateral pair saccate basally;

petals yellow, broadly obovate to suborbicular, 15–22 × 3.5–6 mm, claw 8–14 mm, apex rounded;

median filaments 7–14 mm;

anthers linear, 3–4 mm.

divaricate or ascending, slender, much narrower than fruit, 5–13(–16) mm.

divaricate-ascending, slender, narrower than fruit, 4–12 mm.

suberect or divaricate-ascending, linear, straight, somewhat torulose, (1–)1.5–2.5(–4) cm × 1–1.3 mm, 4-angled, not striped;

valves with prominent midvein, pubescent outside, trichomes 3–5-rayed, densely pubescent inside;

ovules (20–)30–55 per ovary;

style cylindrical, slender, 0.5–1.5 mm;

stigma entire or slightly 2-lobed, lobes as long as wide.

erect to ascending, narrowly linear, straight, torulose, 3.8–14 cm × 1.2–3 mm, latiseptate, not striped;

valves with prominent midvein, pubescent outside, trichomes 2 or 3 (or 4)-rayed, glabrous inside;

ovules 26–44 per ovary;

style cylindrical, slender, (1.5–)2–5.5 mm, sparsely pubescent;

stigma subentire to slightly 2-lobed, lobes as long as wide.

oblong, 1–1.5 × 0.4–0.6 mm;

not winged.

ovoid, 2–3.4 × 1–2 mm;

not winged or, rarely, winged distally.

of leaves primarily 3- or 4-rayed, sometimes mixed with 5-rayed ones, 2-rayed trichomes primarily on stem and pedicels.

of leaves 2–5-rayed.

= 16.

= 36.