Flora of North America species comparison

ascending or decumbent, sparsely villosulous.

prostrate or decumbent to erect, strigose to villous.

2.5–8 cm;

stipules distinct, 2–4 mm, herbaceous;

leaflets 13–21, blades narrowly oblanceolate to oblong-oblanceolate, 4–13(–18) mm, thin, apex often retuse, sometimes obtuse, surfaces sparsely villosulous abaxially, sparsely villosulous or glabrescent adaxially.

2.5–12(–14) cm;

stipules (2.5–)3–8(–9) mm, submembranous becoming papery-scarious;

leaflet blades narrowly to broadly elliptic, oblanceolate, or obovate-cuneate, 4–20(–26) mm, apex acute to obtuse, surfaces strigulose, pilosulous, or hirsute, sometimes glabrescent or glabrous adaxially.

(1 or)2–7-flowered, flowers ascending becoming declined;

axis 0.5–3.5 cm in fruit;

bracts 1.5–2.5 mm;

bracteoles 0–2.

chasmogamous (3–)5–17-flowered, ;

axis 0.7–2.5 cm in fruit;

bracts 1.8–5 mm;

bracteoles 0; cleistogamous 1–3-flowered, very short.

dimorphic, pedunculate in chasmogamous flowers, sessile in cleistogamous flowers, on same or different plants.

incurved-ascending, 2–4.5 cm.

ascending, chasmogamous (2–)4–10(–12) cm, cleistogamous 0–2 cm.

1–2.5 mm.

0.5–2.4 mm.

5.2–6 mm;

calyx campanulate or obconic-campanulate, 3.4–4.2 mm, villosulous, tube 1.7–2 mm, lobes narrowly lanceolate-subulate, 1.4–2.5 mm;

corolla pale lilac, or whitish and tips lilac;

banner recurved through 90°;

keel 3.6–4.3 mm, apex round or narrowly triangular and beaklike.

spreading or declined, greenish, sometimes purplish, becoming stramineous, straight or slightly incurved, obliquely ovoid or ovoid-ellipsoid, bladdery-inflated, somewhat obcompressed, 10–22 × 5–14 mm, thin becoming papery-membranous, sparsely strigose-villosulous, hairs spreading, incumbent or curly.

(of both) ascending or spreading (humistrate), stramineous or purplish brown, usually straight or incurved, rarely decurved, ovoid-acuminate, ovoid-, lanceoloid-, or narrowly oblong-ellipsoid, abaxially or 3-sided compressed, 12–37 × 5–8 mm, somewhat fleshy becoming leathery or stiffly papery, strigulose, villosulous, or long-villous.

18–22.

flowers 8.5–14 mm;

calyx shallowly campanulate, 5–9.7 mm, strigose, tube 3.2–4.5 mm, lobes lanceolate, 2.2–5.2 mm;

corolla greenish white, ochroleucous, or tinged or veined lavender or purple, keel without darker apex;

banner recurved through 45+°;

keel 6.6–9.8 mm.

flowers 4.3–7.2 mm;

calyx shorter than in chasmogamous flowers at anthesis, accrescent in fruit;

corolla whitish, drying yellowish, petals not expanding, much shorter than calyx lobes;

banner little recurved;

keel 4.2–6 mm.

= 26.