Flora of North America species comparison

1–several, ascending or decumbent, often branched distally, 3–10 dm, sericeous-tomentose with white hairs.

1–several, ascending or decumbent, simple or branched, 3–10 dm, thinly grayish white-tomentose.

usually crowded at base, few on stems, sessile or short-petiolate;

blade lanceolate, proximal leaves 3–12 × 0.5–2.5 cm, base attenuate, apex acute or rarely obtuse, scaberulous or canescent adaxially, sericeous-tomentose with bright whitish hairs abaxially.

sessile or short-petiolate;

blade ovate-orbiculate or short-lanceolate, proximal leaves 2.5–3.5–12 × 1–4.8 cm, base attenuate to rounded or obtuse, apex obtuse to acute, floccose-tomentose with grayish white hairs abaxially, sparsely canescent adaxially.

dense, stout, flowers arranged in 3-ranked spiral;

bracteoles dark, glabrous.

lax, flowers arranged in 5-ranked spiral;

bracteoles stramineous or light brown, glabrous.

(3.5–)4–5.5 mm;

perianth lobes narrowly oblong, apex obtuse, or acutish, pubescence dense, bright white;

filament lobes stramineous or darkened, blunt.

3–4.6 mm;

tepals narrowly oblong, apex obtuse or acutish, pubescence of mature flowers sparse, dull;

pseudostaminodes darkened, apex blunt.

narrowly or broadly winged laterally, 2.5–5.5 × 3–4.5 mm, longer than broad, wing margins irregularly dentate, 1 or both surfaces of perianth with 1 or more basal tubercles or spines.

perianth broadly winged laterally, 3.2–4.6 × 3–4.2 mm, nearly as broad as long, wing margins entire or crenulate, face of perianth with or without 1 basal tubercle or spine.