Flora of North America species comparison

erect, glabrous.

erect, glabrous.

usually without basal rosette at anthesis; alternate;

sessile or subsessile;

basal blade obovate or spatulate to narrowly elliptic, cauline oblanceolate, spatulate-elliptic, or linear, (7–)15–40(–70) × 1.5–8 mm, base often cuneately narrowed and petiolelike proximally, acute to obtuse distally, apex usually rounded proximally, acute to obtuse distally, surfaces glabrous.

alternate;

sessile or subsessile;

blade linear to narrowly elliptic proximally, or linear-subulate distally, 6–23 × (0.5–)1(–2) mm, base cuneate, apex acute to acuminate, surfaces glabrous.

in cymose panicles, each stem with to 110 racemose branches, 1.8 × 0.7–1.1 cm, ± flat-topped, 2.5–15 ×3–15 cm;

central ones nearly sessile or peduncle to 2 cm, lateral ones subsessile or peduncle to 2(–3) cm;

bracts usually persistent, lanceolate-ovate.

capitate to densely cylindric, 0.7–3(–4) × 0.6–1.3 cm;

peduncle 0.3–2 cm;

bracts persistent, often with scattered deciduous ones as well, lanceolate-ovate.

narrowly winged, (1–)1.3–2.3 mm, glabrous.

0.7–1.6 mm, glabrous.

bright yellow, drying green or yellow-brown, 3–3.5 mm;

sepals decurrent on pedicel, ovate to lanceolate-ovate, 1–3 mm;

wings ovate, elliptic-obovate, obovate, or spatulate, 2.5–3.5 × 1–1.4 mm, apex acuminate to cuspidate, involute;

keel 2–2.5 mm, crest 2-parted, with (1 or)2 or 3 lobes on each side.

pink or pale purple, 2.8–4 mm;

sepals ovate or lanceolate-ovate, 0.6–1.3 mm;

wings ovate or elliptic, 2.5–3.3(–3.8) × 1.7–2 mm, apex obtuse to bluntly rounded;

keel 2.8–4 mm, crest 2-parted, with 1 lobe on each side, other lobes reduced to low, blunt processes.

subglobose, 0.8–1 × 0.8–1 mm, margins not winged.

subglobose, 1.5–2.3 × 1.5–2.3 mm, margins not winged.

0.5–0.7 mm, densely pubescent;

aril 0–0.2 mm.

1–1.5 mm, pubescent;

aril 0.5–0.8 mm, lobes 1/3–1/2 length of seed.

= 64, 68.

= 72.