S1
Critically Imperiled
Fissidens littlei (Little's fissidens moss)
Acrocarpic moss to 3 mm tall and 2 mm wide, the stems not or sparingly branched; central strand absent; leaves distichous, equitant, consisting of 2 laminae that clasp the stem, arranged on edge to the stem and split at the base, to 1.5 mm long and 0...
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...