Flora of North America species comparison

erect, sometimes slightly glaucous, glabrous.

erect, sometimes laxly so, to nearly decumbent, glabrous.

usually whorled proximally, sometimes whorled to inflorescence, opposite to alternate distally, rarely alternate throughout;

sessile or subsessile, petiole rarely to 1 mm;

blade sometimes linear-spatulate proximally, usually linear, linear-oblong, -elliptic, or -lanceolate distally, (5–)10–20(–30) × 0.5–5.5 mm, base cuneate to acute, apex acute to acuminate, surfaces glabrous.

usually with basal rosette; alternate;

sessile or subsessile, or with narrow petiolelike region to 1–2 mm;

basal blade obovate, oblanceolate, or spatulate, cauline becoming narrowly ovate or nearly linear distally, basal to 60 × 20 mm, cauline to 40 × 10 mm, succulent, base cuneate, apex bluntly rounded to obtuse or acute, especially distally, surfaces glabrous.

nearly spikelike, conic to cylindric-conic, 0.5–5 × 0.2–0.6 cm, sometimes interrupted proximally, with some proximal fruits persistent below gap;

peduncle to 9 cm (usually elongate);

bracts deciduous, subulate to lanceolate.

capitate, 0.8–3.5(–4) × (0.8–)1.2–2 cm;

peduncle 3–10 cm;

bracts deciduous, narrowly lanceolate.

0.2–1(–2) mm, glabrous.

winged, 1.5–2.8 mm, glabrous.

white or with greenish or pinkish tinge, sepals sometimes purplish or whitish, 1–2.2(–2.6) mm;

sepals ovate or elliptic to lanceolate, 0.5–1.6 mm, ciliate;

wings suborbiculate, ovate, elliptic, or obovate, 1–2.6 × 0.8–2.5 mm, apex obtuse to bluntly rounded;

keel 1.2–1.8 mm, crest 2-parted, with 1 or 2 lobes on each side.

usually bright orange, rarely yellow-orange, usually drying pale yellow, 4.5–6 mm;

sepals decurrent on pedicel, ovate, 1.2–2 mm, ciliolate;

wings elliptic, 5–7.5 × 2.7–3.6 mm, apex acuminate to abruptly cuspidate, partially involute;

keel 3.5–6 mm, crest 2-parted, with 2–4 lobes on each side, each lobe entire or divided.

subglobose or broadly ellipsoid to ovoid, 1.3–2.4 × 0.7–2.2 mm, margins not winged.

broadly ellipsoid to obovoid, 1.2–2.3 mm, margins not winged.

1.2–2.2 mm, pubescent;

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

1–1.6 mm, pubescent;

aril 0.5–1.6 mm, lobes 1/2 to subequal length of seed.

= 34.

= 64, 68.