Flora of North America species comparison

erect, unbranched or branched basally, (0.4–)1.5–4.5(–7) dm.

ascending to sprawling, proximal branches terminating in sterile rosettes, (woody at base), 0.5–3 dm.

(often withered by fruiting), similar to cauline.

blade linear to linear-oblanceolate, (2–)3.7–9 cm × 2–5(–10) mm, base attenuate, margins usually entire, rarely sparsely denticulate, apex acute.

(proximal and median) petiolate and (distal) sessile, (petiole (0.3–)0.5–2(–3) cm);

blade [linear, narrowly oblanceolate, elliptic, or oblong, (1–)2–8(–11) cm × (2–)5–12(–17) mm, base attenuate], margins sinuate or coarsely dentate to denticulate or repand, (distal) entire or denticulate, (apex acute).

(distal) sessile;

similar to basal.

considerably elongated in fruit.

considerably elongated in fruit.

sepals linear-oblong, 4–6 mm, lateral pair not saccate basally;

petals yellow, narrowly oblanceolate to spatulate, 6–8 × 1.5–2 mm, claw 3–6 mm, apex rounded;

median filaments 4–6 mm;

anthers narrowly oblong, 0.8–1.3 mm.

sepals oblong to linear-oblong, 6–10 mm, lateral pair slightly saccate basally;

petals yellow, broadly obovate to suborbicular, (11–)14–20(–22) × (3–)4–11.5 mm, claw 7–10 mm, apex rounded;

median filaments 7–10 mm;

anthers linear, 2–3 mm.

divaricate, stout, as wide as fruit, 2–4(–6) mm.

widely spreading, slender, narrower than fruit, (8–)10–22 mm.

widely spreading to divaricate-ascending, narrowly linear, straight or curved upward, somewhat torulose, (2–)3–8(–10) cm × 1.5–2 mm, 4-angled, not striped;

valves with prominent midvein, pubescent outside, trichomes 2-rayed and, fewer, 3-rayed, often glabrous, sometimes pubescent inside;

ovules (40–)50–80(–90) per ovary;

style cylindrical or subclavate, stout, 1–4 mm, sparsely pubescent;

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

ascending to spreading, narrowly linear, straight or only slightly curved inward, not torulose, 2–5(–7) cm × 2–3 mm, angustiseptate, not striped;

valves with prominent midvein, pubescent outside, trichomes 2–4-rayed, glabrous inside;

ovules 36–50 per ovary;

style cylindrical or slightly flattened, stout, 1–4 mm, sparsely pubescent;

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

oblong, 1.1–1.5 × 0.6–0.7 mm;

not winged or, rarely, winged distally.

oblong, 1–2 × 1.2–2 mm;

not winged.

of leaves 2-rayed, mixed with fewer 3-rayed ones.

-chomes of leaves primarily 2-rayed, sometimes mixed with 3-rayed ones.

= 16.

= 36.