Flora of North America species comparison

erect or ascending, sparsely strigulose.

several, reclining or ascending, proximal few nodes 0.5–5 cm underground, villous-hirsutulous.

(3–)4–12 cm;

stipules connate and scarious-papery at proximal nodes, distinct and herbaceous at distal nodes, 1.5–5 mm;

leaflets (17–)21–29, blades flat or loosely folded, oblong-oblanceolate or elliptic, 3–13 mm, apex obtuse to subacute, surfaces sparsely strigulose abaxially, glabrate or glabrous adaxially.

2–8 cm;

stipules 3–7 mm, membranous;

leaflets 9–21, blades obovate to oblanceolate, 3–11 mm, apex obtuse or emarginate, surfaces loosely pilose abaxially, glabrous adaxially.

(5–)10–30-flowered;

axis (1.5–)3–19 cm in fruit;

bracts 1–2 mm;

bracteoles 2.

3–10-flowered, flowers ascending;

axis 0.5–2 cm in fruit, not much elongating;

bracts 2.5–4.5 mm;

bracteoles 2.

(2–)4–11 cm.

incurved-ascending, reclined in fruit, 1.5–5 cm.

0.6–1.5 mm.

1.5–3 mm.

5.8–8 mm;

calyx marcescent, 3.4–4.3 mm, strigulose, hairs black and/or white, tube 2.1–2.7 mm, lobes subulate, 1–2 mm;

corolla whitish or, sometimes, greenish ochroleucous, immaculate;

banner abruptly incurved through 90°;

keel 4.2–5.6 mm.

14–19 mm;

calyx campanulate-cylindric, 5.8–10 mm, villosulous, tube 4.7–7 mm, lobes subulate, 1.1–3 mm;

corolla reddish violet to pink-purple;

keel 10.2–11.5(–15) mm.

stramineous, straight or slightly incurved or decurved, linear-oblong or linear-oblanceolate, 3-sided compressed, 15–30 × (2.5–)3–4 mm, bilocular, papery, glabrous;

valves inflexed as complete septum 1.4–1.9 mm wide;

stipe 1.5–2.5 mm.

firmly attached to receptacle, falling while still attached to pedicel, ascending to declined (humistrate), stramineous, incurved through 0.3 spiral, crescentic, 3-sided compressed, deltoid in cross section, dorsal suture slightly grooved, 20–45 × 5–8 mm, bilocular, scarcely fleshy becoming leathery, faces prominently reticulate, sparsely villosulous, hairs to 1 mm;

septum 3.5–4.2 mm wide;

stipe 1–2.5 mm.

12–16.