Flora of North America species comparison

0–20 mm.

0–10 mm.

40–200 × 10–30 mm;

blade lanceolate-spatulate to narrowly ovate, margins entire, sometimes toothed, veins conspicuous, surfaces usually glabrous.

20–80(–115) × 5–15 mm;

blade lanceolate, margins usually 1- or 2-pinnatifid, veins conspicuous or not, surfaces villous, hairs septate, sometimes glabrate.

25–200 mm, slightly surpassing leaves, glabrous.

decumbent, sometimes erect, 15–150(–210) mm, villous.

brownish or greenish, 45–250 mm, densely flowered, rachis not clearly visible between flowers;

bracts broadly ovate, 2 mm, length 0.8–1 times sepals.

decumbent, sometimes erect, greenish, purplish, or brownish, (15–)30–300 mm, densely flowered;

bracts ovate to lanceolate, 1.5–2 mm, length 0.5–0.6 times sepals.

sepals 2–2.5 mm;

corolla radially symmetric, lobes spreading, 1 mm, base obtuse;

stamens 4.

sepals 2–3 mm;

corolla radially symmetric, tube hairy, lobes reflexed, 1 mm, base obtuse;

stamens 4.

3 or 4, 2–2.3 mm.

(2–)4 (plus 1 smaller, distal one of different shape), 1–1.5 mm.

= 24.

= 10, 20, 30 (all Eurasia).