Flora of North America species comparison

not branching or with branch in axil of cauline leaf, straight, 1–5 dm.

slender, branching or not, 0.8–2 dm.

basal solitary, persistent, 1–3 dm × 2–20 mm, usually not exceeding inflorescence;

blade tapering toward both ends.

basal persistent, 1–3 dm;

blade linear, flat.

subumbellate, 1–9-flowered;

bracts 2–several, lanceolate to linear, attenuate, unequal, 1–5 cm;

peduncle slender, becoming stiffly erect in fruit.

1–6-flowered.

erect or spreading;

perianth open, campanulate;

sepals white or purplish-tinged, usually with purple crescent, lanceolate, usually equaling petals, often adaxially papillose, apex acuminate to attenuate;

petals white or purplish-tinged, usually with median, red-purple, adaxial crescent distal to gland, ovate to lanceolate, abruptly contracted at base into short, conspicuous claw, usually conspicuously fringed with long, slender hairs, adaxial surface ± papillose, bearing a few long hairs distal to claw, apex acute to acuminate;

glands transversely oblong, depressed, arched upward, bordered proximally by narrower, crenate membrane, with short, thick hairs toward distal margin of enclosed surface, both fringe of lower membrane and hairs densely long-papillose;

filaments basally dilated, ± equaling anthers;

anthers oblong-lanceolate, apex acute to short-apiculate.

± erect at anthesis;

perianth open, campanulate;

sepals oblong-lanceolate, 16–20 mm, glabrous, apex acuminate;

petals deep yellow, often with red-brown blotch distal to base, narrowly obovate, 12–20 mm, ciliate, adaxial surface densely branching-hairy;

glands bordered proximally by ciliate membrane, distally by short hairs;

anthers short-tipped.

erect, 3-winged, ellipsoid, base and apex acute.

nodding, winged, oblong, 1–2 cm.

irregular.

dark brown, irregular.

= 20.

= 20.