Flora of North America species comparison

ascending to erect, villous.

prostrate, when developed, 0–2.5 cm, mostly obscured by stipules, strigulose.

(6–)9–17 cm;

stipules reflexed, connate-sheathing at proximal nodes, distinct at distal nodes, 10–22 mm, foliose becoming papery-membranous;

leaflets (7 or)9–15, blades broadly lanceolate- or ovate-oblong or elliptic, 15–60 mm, thin, pinnately veined, apex obtuse, surfaces sparsely villous abaxially, glabrous adaxially.

1.5–9 cm;

stipules connate-sheathing at proximal nodes, connate or distinct at distal nodes, 2–5 cm, membranous;

leaflets 5–17, blades elliptic, oblanceolate, or obovate, 3–12 mm, apex acute to obtuse, surfaces strigose.

10–25(–30)-flowered;

axis 2–5 cm in fruit;

bracts 4–9 mm;

bracteoles 0 or 2.

4–13-flowered, flowers ascending or spreading;

axis 1.5–8 cm in fruit;

bracts 2–4.5 mm;

bracteoles 0.

erect, (3.5–)5–14(–19) cm, equaling or shorter than subtending leaf, sometimes exceeding proximal ones, together with racemes usually not longer than distalmost leaves.

erect, 2–9 cm.

3–9 mm.

0.5–2 mm.

8–13(–14.2) mm;

calyx campanulate, (4.5–)4.9–5.8 mm, glabrous, tube (4.3–)4.9–5.8 mm, lobes deltate (often reduced to shallow crenulations), 0.2–0.7 mm, ciliate;

corolla white or cream, keel 10.3–12.7 mm.

12–16 mm;

calyx cylindric, 6–8.5 mm, strigose, tube 4.5–6 mm, lobes subulate, 1.2–2.5 mm;

corolla purplish;

keel 9.5–12.5 mm.

stramineous, straight, obliquely ellipsoid, bladdery-inflated, 20–28 × 6.5–9.5 mm, papery, translucent, glabrous;

stipe 4.5–7 mm.

declined to deflexed, green, usually red-mottled or -spotted, becoming stramineous, lunately incurved, obliquely ovoid or lanceoloid-ellipsoid, dorsiventrally compressed, 10–14 × 3.5–6.5 mm, unilocular or subunilocular, thickly papery, hirsute, hairs lustrous;

sessile, gynophore 0.3–0.8 mm.

6–9.

20.

= 16.