Acacia millefolia
This species of Acacia differs from others by the following combination of characteristics: leaves bipinnate, flowers in spikes, plants unarmed or only slightly thorny, the pinnae in (4)6-10 pairs.
G3?
G3? Vulnerable, Inexact Numeric Rank - Vulnerable globally either because very rare and local throughout its range, found only in a restricted range (even if abundant at some locations), or because of other factors making it vulnerable to extinction or elimination. Typically 21 to 100 occurrences or between 3,000 and 10,000 individuals.
The ranking is inexact.
Astragalus naturitensis (Naturita milkvetch)
Low, subacaulescent perennial, about 10 cm tall; stems 2-6 cm long; leaves to 6 cm long; leaflets 9-15 , strigose with straight, overlapping hairs; flowers 3 -11, pea-like, less than 14 mm long; petals bi-colored, banner white with lilac streaks, win...
Astragalus nutriosensis (Nutrioso milkvetch)
Dwarf, acaulescent, perennial herb from a well-developed, short, but knotty caudex on a simple taproot; leaves 3-11 cm long, pinnately compound with 5-9 pairs of leaflets, each leaflet grayish pubescent below and nearly glabrous on the upper surface;...
Bulbostylis schaffneri
This small annual species is distinguished by the inflorescence being shorter than the leaves.
Carex ultra (Cochise Sedge)
Plants densely cespitose from stout rhizomes; culms 50-160 cm tall; leaf blades 6-15 mm wide, sometimes glaucous, thick, stiff, scabrous on margins and keel, basal sheaths brown or reddish, with fronts densely red-spotted or blotched, ladder-fibrillo...
Desmodium metcalfei (Metcalfe's ticktrefoil)
Perennial; stems erect or ascending, clustered, 3-9 dm long, glabrate or strigose to inflorescence; petioles 1-3 cm long; leaves trifoliolate; leaflets oblong-lanceolate, the terminal longest, to 3-6 cm, generally about 1 cm wide, 4-5 times longer th...
Erigeron scopulinus (Rock fleabane)
Perennial, mat-forming herb with fibrous root system and slender rhizomes up to 15 cm long; leaves clustered at tips of rhizomes, 5-12 mm long, 1.0-3.5 mm wide, spatulate or obovate, broadest above the middle, tapering toward the petiole, margins en...
Escobaria orcuttii (Orcutt pincushion cactus)
Escobaria orcuttii is distinguished by the relatively even and short length of the central spines, which seem to grade into the radial spines of similar length. This gives the plants something of a "groomed" appearance. Stems solitary, few in a cl...