Flora of North America species comparison

ascending, proximal branches terminating in sterile rosettes, (woody at base), 1.5–8.1 dm.

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

blade linear to linear-oblanceolate, 3.7–15 cm × 1.5–6(–7) mm, base attenuate, margins usually entire, rarely sparsely denticulate, apex acute.

(often withered by fruiting), similar to cauline.

(distal) sessile;

blade similar to basal.

(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).

considerably elongated in fruit.

considerably elongated in fruit.

sepals oblong to linear-oblong, 6–11 mm, lateral pair saccate basally;

petals yellow, obovate to suborbicular, (11–)14–20(–22) × (3–)4–11.5 mm, claw 8–13 mm, apex rounded;

median filaments 7–11 mm;

anthers linear, 2.5–4 mm.

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.

ascending, slender, narrower than fruit, (3–)5–10 mm.

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

ascending to spreading, narrowly linear, straight or only slightly curved inward, not torulose, (2–)3–8.4(–11) cm × 1.5–2.4(–3.5) mm, 4-angled to only slightly latiseptate, not striped;

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

ovules 48–82 per ovary;

style cylindrical, stout, 0.5–4 mm, sparsely pubescent;

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

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.

oblong, 1.5–2.5(–3) × (0.7–)1–1.2(–1.4) mm;

not winged or winged apically.

oblong, 1.1–1.5 × 0.6–0.7 mm;

not winged or, rarely, winged distally.

of leaves 2-rayed, sometimes mixed with 3- or 4-rayed ones.

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

= 36.

= 16.