Flora of North America species comparison

several from base, usually erect to ascending, rarely decumbent, branched, 0.4–1.5(–2) dm.

(soon withered);

not rosulate;

petiole 0.5–1.5(–2) cm;

blade margins entire or pinnatifid (lobes 2–5 pairs, linear to filiform), 1.5–5 cm × 0.5–2 mm.

petiolate;

blade linear, 0.1–0.3 cm × 0.5–2 mm, base attenuate, not auriculate, margins entire.

considerably elongated, (lax) in fruit;

rachis glabrous or puberulent, trichomes straight, cylindrical.

sepals oblong, 0.6–0.8 × 0.4–0.5 mm;

petals absent;

stamens 4, median;

filaments 0.6–0.7;

anthers ca. 0.1 mm.

divaricate to horizontal or descending, usually recurved, rarely straight, (terete or slightly flattened), 2–4(–6) × 0.2–0.3 mm, glabrous or puberulent adaxially.

ovate, 2.4–3.6 × 1.8–2.5 mm, apically winged, apical notch (V-shaped), 0.3–0.8 mm deep;

valves thin, smooth, strongly reticulate-veined, glabrous;

style obsolete or to 0.1 mm, included in apical notch.

oblong, 1.4–1.8 × 0.8–0.9 mm.