Flora of North America species comparison

short.

short.

4–10, 2-ranked, recurving, gray, 6–12 × 0.2–0.3 cm, densely pruinose-scaly;

sheath pale, elliptic, not inflated, not forming pseudobulb, 4–8 mm wide;

blade subulate, terete distally, succulent, margins involute to nearly tubular, apex acute to attenuate.

15–30, many-ranked, reflexed, twisted or contorted, gray, often flushed red, to 65 × 0.6–1.4 cm, appressed-grayish-scaly;

sheath conspicuously rust-colored toward base, ovate to elliptic, conspicuously inflated, forming small pseudobulb, 2–4 cm wide;

blade linear-triangular, leathery, channeled to involute, apex attenuate.

scape conspicuous, erect, 2–5 cm, ± 1 mm diam.;

bracts 1–2, widely spaced, erect, inconspicuous, nearly foliaceous;

sheath of bracts narrowing gradually into blade;

spikes ascending, subpalmate, elliptic, compressed, 8–15 ´ 4–6 mm, apex acute;

lateral branches absent.

scape conspicuous, erect, 8–30 cm, 2–4 mm diam.;

bracts densely imbricate, spreading, recurved and twisted like leaves;

sheath of bracts narrowing gradually into blade;

spikes erect, 2-pinnate, linear, compressed, 2–10 × 1 cm, apex acute;

lateral branches 2–10 (rarely simple).

usually 2, conspicuous;

sepals free, lanceolate, not keeled, 6–8 mm, thin, veined, apex acute, surfaces glabrous;

corolla tubular;

petals spreading toward apex, violet, elliptic, 0.7–1 cm;

stamens included;

stigma included, simple-erect.

5–30, conspicuous;

sepals with adaxial pair connate, lanceolate, keeled, 1.5–2 cm, leathery, apex acute, surfaces glabrous;

corolla tubular;

petals erect, violet, ligulate, to 3.5 cm;

stamens exserted;

stigma exserted, conduplicate-spiral.

to 3 cm.

to 4 cm.

bracts laxly imbricate, erect, green, tinged purple, broad (covering all or most of rachis, rachis not visible at anthesis), narrowly elliptic, not keeled, 0.8–1 cm, thin-leathery, apex acute, surfaces densely grayish-scaly, venation even to slight.

bracts imbricate, erect, green to red, broad (covering all or most of rachis, rachis not visible at anthesis), elliptic, keeled, 1.5–2 cm, leathery, base not visible at anthesis, apex acute, surfaces glabrous to inconspicuously scaly near apex only, venation even to slight.