Flora of North America species comparison

erect or ascending, usually flexuous and abruptly angled distal to each node, hirsute or hirsutulous.

very slender, prostrate-spreading, strigulose.

3–10(–11) cm;

stipules lanceolate-attenuate, (1.5–)2.5–8(–9) mm, herbaceous, sometimes papery at proximal nodes;

leaflet blades obovate to elliptic, (3–)5–19 mm, apex acute to obtuse or retuse, surfaces pubescent abaxially, sometimes glabrous adaxially.

(1–)2–11.5(–15) cm;

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

leaflet blades linear-filiform to narrowly oblong, involute or conduplicate, 5–27 mm, apex acute to obtuse, surfaces strigose abaxially, glabrous adaxially.

10–25-flowered;

axis (1–)2–5 cm in fruit;

bracts (2.5–)4–12 mm;

bracteoles 0–2.

of subradical inflorescences 1(or 2)-flowered, others 2–5(–7)-flowered;

axis filiform, 0.5–6(–8) cm in fruit;

bracts 1–2 mm;

bracteoles 2.

erect, 1.5–5.5 cm.

pendulous or ascending, humistrate in fruit, 2.5–14(–17) cm (early subradical, shorter than leaves, later much surpassing leaves).

0.5–2.3 mm.

1.2–4 mm.

12–15.3 mm;

calyx 9.5–13 mm, hirsute to hirsutulous, tube 7–8.6 mm, lobes subulate to linear-subulate, 2.5–5.5 mm;

corolla bicolored, keel tip maculate.

4–6(–7) mm;

calyx 2.7–4 mm, black-strigose, tube 1.8–2.5 mm, lobes subulate, 0.9–2 mm;

corolla keel 3.5–4.5 mm.

stramineous, incurved, (20–)25–40 × (4–)5–7(–8) mm, thin becoming papery, glabrous.

greenish or purple-dotted becoming brownish stramineous, 10–18 × 3.5–5 mm, thin becoming papery, strigose;

septum 1.2–2 mm wide;

stipe 0–1 mm.

= 24.

= 22.