Flora of North America species comparison

laxly erect, decumbent, or prostrate, pubescent to subglabrous, hairs incurved.

erect to sprawling, densely pubescent or glabrate, with dense, matted or shaggy tomentum, hairs appressed, incurved, or, occasionally, irregularly spreading.

sessile or subsessile;

blade ovate, elliptic, or obovate, 7–50(–60) × 3–20(–26) mm, base usually rounded to acute, sometimes cuneate, apex rounded to acute, surfaces pubescent, hairs incurved.

sessile or subsessile, rarely with narrow, petiolelike base to 1(–2) mm;

blade linear to oblanceolate or obovate, (3–)4–20(–25) × 0.8–3(–3.5) mm, base long-cuneate, apex rounded to acute, surfaces densely pubescent, hairs incurved.

terminal or leaf-opposed, 1–4(–5) × 1.8–3 cm;

rachis not thorn-tipped;

peduncle 0–1 cm;

bracts early deciduous, linear to lanceolate.

terminal, sometimes aggregated into pseudopanicles or reduced and appearing fasciculate, 1.5 × 0.7–1.3 cm;

rachis thorn-tipped;

peduncle 0–0.1 cm;

bracts deciduous, lanceolate or ovate.

(2.5–)3.5–8.5 mm, sparsely pubescent or glabrous.

(2.5–)3–7(–9) mm, glabrous.

usually pink, rarely white, keel distally yellow (fading white), (2.5–)9–14.5 mm, cleistogamous and semi-cleistogamous flowers mostly 2.5–5 mm, intergrading with chasmogamous flowers;

sepals deciduous, elliptic, 4–6.5 mm, pubescent or glabrous;

wings obovate, (7.5–)8–12 × 2.5–6 mm, glabrous or sparsely pubescent;

keel (7–)8–11 mm, sac glabrous (sometimes proximally ciliate), beak oblong, (1.2–)1.6–3 × 0.7–1 mm (mostly absent in cleistogamous flowers), usually notched or contorted abaxially, rarely subentire, pubescent.

cream or greenish, (2.5–)3–4.7(–5.2) mm;

sepals deciduous, ovate or elliptic, 1.3–3.3 mm, glabrous or with few incurved hairs subapically, margins sparsely ciliate;

wings obovate, 2.5–4.9 × 1.5–3 mm, glabrous or sparsely pubescent subapically;

keel (2–)2.5–3.4 mm, sac glabrous or appressed-pubescent in upper part, beak mostly absent, when present, a bluntly rounded projection, 0(–0.5) × 0(–0.5) mm, glabrous or pubescent.

ellipsoid to ovoid, 7.3–10.5 × 4.5–7 mm, in cleistogamous and semi-cleistogamous flowers 4.5–8 mm, base obtuse, rounded, or subtruncate, margins with narrow, entire or slightly erose wing, glabrous, margins sometimes ciliolate.

broadly ellipsoid, ovoid, or subglobose, 3.5–5.8 × 3.3–4.6 mm, base truncate to rounded, margins with narrow and even wing, glabrous.

3.5–6 mm, densely pubescent;

aril 1.7–4 mm, less than 1/2 length of seed.

2.8–4.2 mm, sparsely pubescent to subglabrous;

aril 1.2–2.3 mm, lobes to 1/3 length of seed.

or semi-cleistogamous flowers often present terminally, on much reduced scale-leaved lateral branches from proximal (or distal) leaf axils, or terminally on leafy branches that are often leaf-opposed.

= 18.

= 18.