Flora of North America species comparison

erect, glabrous.

erect, puberulent or glabrous, hairs appressed, incurved, and spreading.

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;

subsessile or petiolate, petiole to 0.5–5 mm;

blade scalelike proximally, linear-lanceolate to lanceolate-elliptic, lanceolate, or lanceolate-ovate distally, (13–)20–80 × (1.5–)8–35 mm, base acute, margins often appearing serrulate from toothlike projections associated with cilia, 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.

conic or cylindric-conic, (1–)1.5–4(–4.5) × 0.5–0.9 cm;

peduncle 1–3 cm;

bracts deciduous, ovate.

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

0.5(–1) 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.

white, wings often with greenish veins, other sepals sometimes white, 2–4 mm;

sepals ovate or lanceolate, 1–2 mm;

wings suborbiculate to broadly elliptic or obovate, 2–3.7 × 2–3 mm, apex bluntly rounded (or rarely obtuse);

keel 2–3.5 mm, crest 2-parted, with 2–4 lobes on each side.

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

subglobose or ovoid, 2.5–4.5 × 3–4.3 mm, margins not winged.

0.5–0.7 mm, densely pubescent;

aril 0–0.2 mm.

2–3.5 mm, sparsely pubescent;

aril 1.9–3.6 mm, lobes subequal to longer than length of seed.

= 64, 68.

= 34.