Flora of North America species comparison

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

erect or ascending, 0–2.5 cm underground, sparsely villosulous or glabrous proximally.

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.

(3–)4–12 cm;

stipules connate-sheathing at proximal nodes, connate or distinct at distal nodes, (1.5–)2–6 mm, scarious;

leaflet blades narrowly oblong-elliptic, oblanceolate, linear-oblong, or oblong-obovate, (3–)5–20(–23) mm, apex acute to subobtuse or retuse, surfaces villosulous.

10–25-flowered;

axis (1–)2–5 cm in fruit;

bracts (2.5–)4–12 mm;

bracteoles 0–2.

6–12(–14)-flowered;

axis 2.5–10 cm in fruit;

bracts 1.3–4.5 mm;

bracteoles 0–2.

erect, 1.5–5.5 cm.

erect or narrowly ascending, (4.5–)6–15 cm.

0.5–2.3 mm.

1–3.5 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.

15.4–18.8 mm;

calyx 8.8–11.8 mm, strigulose, tube 6.3–7.5 mm, lobes lanceolate-subulate, 2.5–4.3 mm;

corolla white or lilac-tinged, drying ochroleucous;

keel (9.8–)10–12.4 mm.

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

ascending to divaricately spreading or somewhat declined, set at angle to stipe, stramineous or brownish, straight or slightly incurved, inflated, scarcely bladdery, (10–)13–24(–32) × 6–12 mm, thinly fleshy, glabrous;

stipe (4–)5–12 mm.

= 24.

= 22.