Flora of North America species comparison

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

erect or ascending, 1–9(–17) cm underground, 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.

sparse or nearly bladeless and rushlike, 2–11 cm;

stipules connate-sheathing and papery-scarious at proximal nodes, mostly distinct and herbaceous at distal nodes, (1–)2–7 mm;

leaflets 3–13 or distal leaves reduced to rachis (phyllodia), blades linear, linear-filiform, linear-elliptic, or elliptic, 5–30 × 0.5–4 mm, apex acute, surfaces strigulose;

terminal leaflet sometimes decurrent and not jointed to rachis.

10–25-flowered;

axis (1–)2–5 cm in fruit;

bracts (2.5–)4–12 mm;

bracteoles 0–2.

3–25-flowered, flowers ascending to declined;

axis 2–20(–23) cm in fruit;

bracts 0.5–2.3 mm;

bracteoles 0–2.

erect, 1.5–5.5 cm.

incurved-ascending, 1–14 cm.

0.5–2.3 mm.

1–8 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.

(6.6–)7.6–11.2 mm;

calyx 4–6.3 mm, black-strigose and/or white-strigose, tube 3.4–5.4 mm, lobes triangular-subulate, 0.5–1.4 mm;

corolla ochroleucous, sometimes tinged or veined with purple or pink;

banner abruptly recurved through 90°;

keel (6.2–)6.5–9.4 mm, apex broadly triangular.

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

pendulous to spreading, green, purple, or mottled, becoming stramineous, straight, linear, narrowly oblong, or oblanceoloid, laterally compressed, bicarinate, 13–50(–53) × 2.3–5 mm, papery, strigose;

sessile.

11–26.

= 24.