Flora of North America species comparison

glabrous or sparsely and unevenly tomentose when young.

viscid-pubescent (reputedly notably odorous).

usually 1.

single (sometimes branching).

evenly distributed; petiolate;

blades ovate to oblanceolate, 2–10 × 0.5–2(–4) cm, bases tapered, margins lobulate to dentate, ultimate margins often secondarily dentate to denticulate (distal leaves sessile).

evenly distributed (basal and proximal sometimes withering before flowering); weakly petiolate;

blades ovate or obovate to suborbiculate, spatulate, or lanceolate, 8–12 × 2–4 cm, bases tapered to truncate, margins dentate (mid and distal leaves similar, triangular-lanceolate, bases truncate, clasping).

0.

± 13;

corolla laminae 8–10(–12+) mm.

± 21, 4–6 mm, tips usually green, sometimes black.

± 21, 6–7 mm, tips greenish.

of 2–4(–6+) bractlets (prominent, black-tipped, lengths about 1/4 phyllaries).

of 5–15+ lanceolate or linear to subulate bractlets (lengths 1/3–7/8+ phyllaries).

8–20 in loose, corymbiform arrays.

12–30 in corymbiform arrays.

usually sparsely hairy, sometimes nearly glabrous.

hairy.

= 40.