Vulnerable
Loosely tufted perennial, the spreading base sometimes appearing rhizomatous; stems wiry, 1.0-4.5 dm tall, decumbent at base; leaf blade 1-5 cm long, less than 2 cm wide, inrolled; ligule 1-2 mm long; inflorescence 4-12 cm long, less than 3 cm wide, ...
Root large, fleshy, round at the top, tapering; stems 2 m long, pale gray-green, slender, 1-2.5 cm in diameter, strongly angled by the 4-6 low, broad ribs; areoles narrowly oval about 4 mm long, white to gray woolly, bearing approximately 12 gray to ...
Perennial; stems solitary or few, glabrous, 3-7 dm tall; leaves entire, opposite, basal leaves elliptic to lanceolate, stem leaves much reduced, 2-4 pairs, sessile, lanceolate; inflorescence slightly glandular, more orless secund, usually as much as ...
Perennial; stems 0.8-2.0 dm tall, erect, or slightly upward-curving, retrorsely puberulent; leaves mostly basal, opposite, entire or rarely few toothed, lanceolate, elliptic, or spatulate, basal leaves somewhat petiolate, stem leaves sessile; inflore...