Flora of North America species comparison

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

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.

3–25-flowered, flowers ascending to declined;

axis 2–20(–23) cm in fruit;

bracts 0.5–2.3 mm;

bracteoles 0–2.

incurved-ascending, 1–14 cm.

1–8 mm.

(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.

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.

hornii has an unusual geographic distribution: the upper San Joaquin Valley and the western edge of the Mojave Desert in California, and the western shore of Pyramid Lake in Nevada.

habitat for the species in the United States has been largely destroyed, with most collections more than 50 years old (D.

1998).

minutiflorus M.

.

is known from Baja California.