S3
Vulnerable
Peniocereus greggii var. greggii (Night-Blooming Cereus)
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 ...
Penstemon alamosensis (Alamo Beardtongue)
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 ...
Penstemon breviculus (Narrow-Mouth Penstemon)
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...
Penstemon ramosus (Branching Beardtongue)
Robust heterophyllous perennials from a woody caudex; stems 3-7.5 dm tall, puberulent, often branching midway up the stem; leaves of the branches linear, about 1 mm wide and 25 mm long; leaves of the main stem 3-6 mm wide, 6-11 cm long, isophyllous a...
Phacelia sivinskii (Sivinski's Scorpionweed)
Biennial, 20-37 cm tall; stems solitary to several, usually erect, leafy, densely covered with sessile to short-stalked, 3-celled, light-colored capitate glands with some short and longer simple nonglandular hairs; leaves 1-6 cm long, 0.5-2 cm wide, ...
Phemeranthus confertiflorus (New Mexico Flameflower)
Stems mostly reddish; sepals acute, often with puple coloring, persistent in fruit; petals white to pale pink, five; stamens yellowish or matching petal color, 5 (rarely to 10); flowers open in afternoon; fruit are pointed apically and three-angled, ...
Philadelphus argyrocalyx (Silvercup Philadelphus)
Erect shrub 1-2 m tall; leaves opposite, ovate, ovate-lanceolate or narrowly elliptic, margins entire, 10-35 mm long, 4-17 mm wide, glabrous or glabrescent above, sparsely villous hairy below, petiole about 2 mm long; flowers usually solitary (rarely...