Flora of North America species comparison

erect or ascending, sparsely strigulose.

erect, with several elongated internodes, strigulose.

(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.

5–10 cm;

stipules 7–11 mm, membranous or thinly herbaceous distally;

leaflet blades linear, narrowly oblong, or elliptic, 18–34 mm, apex rounded to retuse, surfaces strigulose abaxially, glabrous adaxially.

(5–)10–30-flowered;

axis (1.5–)3–19 cm in fruit;

bracts 1–2 mm;

bracteoles 2.

(12–)16–30(–35)-flowered;

axis 3–16 cm in fruit;

bracts (1.5–)2.5–9 mm;

bracteoles 0.

(2–)4–11 cm.

stiffly erect, (3–)4–18(–20) cm, proximal peduncle and raceme much shorter than stem.

0.6–1.5 mm.

1–2.4 mm, slightly longer in fruit.

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.

12–15 mm;

calyx 4.3–6.7 mm, black-strigose, tube 3.5–4.5(–4.8) mm, lobes linear-lanceolate, 1.5–2.5 mm;

keel (7–)7.7–9.1 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.

brownish stramineous, (6–)9–15 × 3.5–6.5 mm, papery-membranous, minutely strigose;

valves inflexed as hyaline septum 1.2–2.3 mm;

gynophore 0.4–0.6 mm.

12–16.