S1
Critically Imperiled
Helianthus arizonensis (Arizona Sunflower)
Herbaceous perennial with long creeping roots that function like rhizones; stems glabrous, glaucous, 20-30 cm tall; leaves opposite, sessile, lanceolate, 6-7 cm long, 1.0-1.3 cm wide, tip acute, margins undulate, surface glabrous and glaucous, bluish...
Heuchera woodsiaphila (Capitan Peak Alumroot)
Acaulescent perennial herb from an elongate branching caudex; leaves with lanceolate stipules, petioles 4-8 cm long, glandular-puberulent and sparsely villous with white multicellular hairs to 5(-8) mm long, blades sub-reniform to broadly ovate, the ...
Hexalectris arizonica (Arizona Crested Coralroot)
Stems pinkish-red, pinkish-yellow, or pinkish white; flowers with sepals pale creamy yellow or dull pale pinkish-purple with pinkish-red, pinkish-brown or pinkish-purple veins, connivent or spreading apically; dorsal sepal lanceolate to oblong, 15-18...
Hexalectris colemanii (Coleman's coral-root)
Perennial, rhizomatous, myco-heterotrophic herb lacking chlorophyll; stems up to 55 cm high, erect, cream to pale pink in color, with 4 to 6 reduced leaves or bracts that are well spread along the stem below the inflorescence; flowers 13 to 19, each ...
Hexalectris nitida (Shining Coralroot)
Plant saprophytic; stems reddish-purple, leafless except for a few widely spaced bracts, glabrous, up to 30 cm tall; inflorescence loosely to densely flowered, with up to 20 small, shiny flowers; sepals and petals pinkish-brown, parallel veins darker...
Hexalectris revoluta (Curly Crested Coralroot)
Herbaceous saprophytic perennial; stems 40-50 cm tall, pale pink to rose to tan, leafless except for a few widely spaced bracts; inflorescence a raceme with 10-20 rose-tan to whitish flowers; sepals and petals pale rose-tan with light veining, free a...