S2?
Imperiled in NM because of rarity or because of some factor(s) making it very vulnerable to extirpation from New Mexico. Typically 6 to 20 occurrences or few remaining individuals (1,000 to 3,000).
The numeric rank is inexact.
Oxalis pilosa
This species is extensively branched above ground with small leaves and flowers. Variety pilosa differs by its uneven calyx pubescence and acute calyx lobes.
Philadelphus wootonii (Wooton's Philadelphus)
Erect shrub 1-2 m tall; leaves opposite, ovate, ovate-lanceolate or narrowly elliptic, margins entire, 10-18 mm long, 5-9 mm wide, sparsely hairy above, sparsely villous hairy below, petioles about 2 mm long; flowers usually solitary at the end of a ...
Podistera eastwoodiae (Eastwood Podistera)
This is a small inconspicuous alpine species. It is similar in appearance to Oreoxis (now in Cymopteris), but is distinguished by the presence of a stylopodium.