Flora of North America species comparison

developed;

roots short, fibrous, lignescent, non-tuberiferous.

developed;

roots short, fibrous, lignescent, non-tuberiferous.

branched proximally, 10–40 cm, faces subequal, flat to convex, 4-angled distally from midstem, internodes and nodes hirsute, hairs eglandular.

branched proximally, 10–30(–40) cm, faces subequal, flat to convex, 4-angled, internodes glabrous, nodes sparsely hirsute, hairs eglandular.

subsessile;

blade spatulate to oblanceolate or elliptic, 2–3 cm × 2–8 mm, 2 lateral veins marginal on narrower leaves, margins subentire to shallowly serrate, surfaces loosely strigose, hairs yellowish.

petiole 0.5–1.5 mm;

blade ovate to suborbiculate, 1–1.5 cm × 3–10 mm, margins serrate, surfaces glabrous abaxially, sparsely villous adaxially.

diffuse, not obscured by bracts.

condensed, mostly obscured by foliaceous bracts.

hypanthium globose, much longer than the constricted neck, 6–7 mm, hirsute to villous, eglandular;

calyx lobes triangular, apices aristate;

petals ascending, golden-yellow, 1–1.5 cm;

anthers straight, 2 mm.

hypanthium globose, much longer than the constricted neck, 5–7 mm, villous-hirsute, hairs gland-tipped;

calyx lobes deltate, apices obtuse, hirsute, hairs gland-tipped;

petals ascending, lavender-rose, 1–1.2 cm;

anthers straight, 2 mm.

0.7 mm, surfaces with few straight ridges of papillae along crest, sides with lower, more scattered papillae or ± smooth.

0.6 mm, surfaces with relatively short, interrupted, irregularly spaced, ± longitudinal ridges.

= 44.

= 22.