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 and/or distally, (0.8–)1.5–7(–9.4) 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.

blade oblanceolate to linear-oblanceolate, 2–7 cm × 2–7 mm, base attenuate, margins entire or denticulate, apex acute.

(distal) sessile;

blade similar to basal.

sessile;

blade margins entire or denticulate.

considerably elongated in fruit.

(densely flowered), elongated or not 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, 5–8 mm, lateral pair saccate basally;

petals yellow, narrowly obovate to spatulate, (8–)10–15 × (2–)2.5–4 mm, claw 6–9 mm, apex rounded;

median filaments 6–10 mm;

anthers narrowly linear, 1.7–2 mm.

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

usually ascending, rarely divaricate-ascending, stout, slightly narrower than fruit, (often crowded), 4–7(–10) 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.

suberect to ascending, (subappressed to rachis or not), narrowly linear, straight, not torulose, 2.5–5.8(–6.4) cm × 1.8–2.5 mm, slightly 4-angled, not striped;

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

ovules 40–56 per ovary;

style stout, 0.5–1.5 mm, moderately to sparsely pubescent;

stigma strongly 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.

ovoid to oblong, 1.5–2 × 1–1.2 mm;

not winged.

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

of leaves 2- (or 3-) rayed.

= 36.

= 54.