Flora of North America species comparison

1 or several-clustered, erect, simple, usually hairy, sometimes glabrous or subglabrous.

proximal and distal alternate, petiolate, distalmost sessile or nearly so;

stipules narrowly elliptic to linear or lanceolate, (0.5–)4–25(–30) mm, sparsely hirsute;

petiole 6–20 mm;

blade elliptic or oblanceolate, 6.5–17 × 1.5–6 cm, base attenuate or acuminate, margins entire or sparsely serrate, ciliate or eciliate, apex acute to long-acuminate, surfaces usually strigose and/or sericeous, sometimes glabrous, trichomes scattered throughout or concentrated along outer margins, veins, or petiole.

1–3-flowered;

peduncle recurved at anthesis, becoming erect, 5–23 mm, pilose;

bracteoles present.

sepals often spreading from corolla, linear to linear-lanceolate, margins ciliate or eciliate, apex acute;

petals: upper and laterals greenish white, oblong, 3.5–5 mm, margins usually with scattered cilia, apex usually truncate and recurved, glabrous;

lowest greenish white, 4–5.5 mm, claw 0–1 × 3–4 mm, usually longer and wider than others, distal limb oblong, ± flat to convex, 3–5 mm wide, apex retuse, sometimes rounded, usually glabrous; cleistogamous flowers, when present, from axils of distal leaves.

oblong to ellipsoid, (8–)15–20 mm.

6–9, white to cream, globose to broadly ovoid, (3–)4–7 mm.

= 48.