Flora of North America species comparison

usually not branching, straight or flexuous, often scapelike, 0.5–3 dm.

slender, branching or not, 0.8–2 dm.

basal 1–3 dm × 2–15 mm, usually equaling or exceeding stem length;

blade flat, adaxial surface glabrous.

basal persistent, 1–3 dm;

blade linear, flat.

subumbellate, 1–5-flowered;

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

peduncle slender, becoming stouter, deflexed in fruit.

1–6-flowered.

erect or spreading;

perianth open, campanulate;

sepals typically with purple glandular blotch near base, oblong-lanceolate, shorter than petals, adaxial surface minutely hairy, apex acute to acuminate;

petals yellowish white, sometimes lavender-tinged, frequently with narrow purple crescent distal to gland, broadly obovate, cuneate, moderately bearded nearly to apex, adaxial surface densely hairy, margins fringed, apex obtuse or acute;

glands transversely oblong, arched upward, ± deeply depressed, bordered proximally by narrow, ascending, deeply fringed membrane, distally by narrow, crenate membranes, gland surface with rather long, slender hairs toward distal portion;

anthers lanceolate, apex long-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.

nodding, 3-winged, ellipsoid, apex usually acute.

nodding, winged, oblong, 1–2 cm.

pale yellow.

dark brown, irregular.

= 20.

= 20.