Flora of North America species comparison

simple or several from base, erect or ascending, branched distally, (1–)1.5–3.5(–5) dm.

simple or several from base, erect to ascending or (outer ones) decumbent, unbranched or branched, 0.2–1.5(–3.8) dm.

(often withered by anthesis);

not rosulate;

petiole 0.5–1.5 cm;

blade obovate to oblanceolate, (1–)2–6(–7) cm × 3–20 mm, margins dentate to sinuate.

(soon withered);

not rosulate;

petiole often undifferentiated (to 3 cm);

blade linear, 2–10 cm × 1–4 mm, margins entire, dentate, or pinnatisect (lobes 2–10 pairs, margins entire or dentate).

sessile;

blade oblong or lanceolate, 1–5(–8) cm × (3–)5–15(–30) mm, base sagittate, margins dentate or subentire, (surfaces pubescent).

similar to basal, smaller, blade base attenuate, not auriculate, margins entire.

(usually corymbose, rarely paniculate), rarely elongated in fruit;

rachis pubescent, trichomes often curved.

(subcapitate to cylindrical), elongated or not in fruit, (compact);

rachis puberulent, trichomes straight, cylindrical.

sepals oblong, 1.4–2 × 0.7–1 mm;

petals white, broadly obovate, (2.2–)2.8–4 × 1–3 mm, claw 1–1.4 mm;

stamens 6;

filaments 2–2.5 mm, (glabrous);

anthers 0.4–0.5 mm.

sepals (somewhat persistent), ovate, 1.1–1.4 × 0.6–0.8 mm;

petals greenish, obovate-oblong, 1.9–3 × 0.8–1.3 mm, claw absent, (usually pubescent outside, with fringed margin, rarely glabrescent);

stamens 4, median;

filaments 0.8–1.1 mm;

anthers 0.15–0.2 mm.

divaricate to ascending, straight or slightly curved, (terete), 3–9(–12) × 0.2–0.3 mm, pubescent.

erect to slightly ascending, straight and appressed to rachis or distally slightly recurved, (strongly flattened), 2.5–5 × 0.9–1.4 mm, usually puberulent throughout, rarely only adaxially.

(indehiscent), globose or, rarely, subglobose, (2–)3–4.4(–5) mm diam., (inflated), apically not winged, apical notch absent;

valves thin, smooth, not veined, densely puberulent;

style 0.5–1.5 mm.

oblong-ovate, 5–7 × 2.8–4 mm, apically winged, apical notch 1.4–2.8 mm deep;

valves thick, smooth, strongly reticulate-veined, hirsute and puberulent, (trichomes spreading, mixed with smaller ones);

style obsolete, included in apical notch.

(brown or dark brown), ovoid, 1.5–2 × 1–1.5 mm.

oblong, 2–2.4 × 1.1–1.3 mm.

= 16.