Flora of North America species comparison

0–20 mm.

0–10 mm.

(80–)100–400(–550) × (5–)10–35(–40) mm;

blade oblanceolate or almost linear, margins entire, veins conspicuous, 4 or 5, surfaces 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.

300–400 mm, glabrous or sparsely hairy, becoming densely so distally.

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

greenish or brownish, 350–450 mm, loosely flowered;

bracts ovate to deltate, 3–4 mm, length 1.5–2.5 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 1.5–2 mm;

corolla radially symmetric, lobes spreading, 1.5–2 mm, base obtuse;

stamens 4.

sepals 2–3 mm;

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

stamens 4.

ovoid, indehiscent or dehiscence not circumscissile.

1 or 2, 4–5 mm.

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

= 24.

= 10, 20, 30 (all Eurasia).