Element occurred historically in NM, and there is some expectation that it may be rediscovered. Its presence may not have been verified in the past 20 years. An element would become SH without such a 20-year delay if the only known occurrences in NM were destroyed or if it had been extensively and unsuccessfully looked for.
Shrub, much branched; stems stout, glandular above, bark exfoliating; leaves alternate, simple, petiolate, ovate to lanceolate, averaging 35 mm long, somewhat thick and succulent, glabrous or nearly so, acute at the apex, rounded to cuneate at the ba...
Annual; stems slender, erect, up to 60 cm tall; leaves sessile or with short stalks, palmately compound, leaflets 3, elliptic, slender, folded, 2 mm wide or less; flowers in axils of stem leaves, petals pink or white, 4-7 mm long; pods elongate, up t...
Herbaceous perennial with a basal rosette of leaves and a scapose stem to 1.5 m tall; basal leaves linear, up to 1 m long, entire or rarely with one or two spinose teeth; cauline leaves few and reduced; inflorescence a compound umbel with compact hea...
Annual (?); stem slender, unbranched, about 0.9 m tall, sparingly coarse-strigose; leaves opposite to mid-stem, alternate above, narrowly linear-lanceolate, about 6 cm long, 6 mm wide, acute, entire, narrowly attenuate to a sessile base, thinly appre...
Perennial herb from shallow slender rhizomes; stems from dense basal rosettes, erect, 4-35 cm tall, green or purplish, glabrous, unbranched on the lower 1/2; basal leaves thick, entire, linear-oblanceolate, sessile, 8-30 mm long, glabrous except on t...
Plants perennial, mat-forming; stems 1-5 dm tall, tufted, leafy, pubescent; leaves oblanceolate, 2-4 mm wide (possibly with flattened, scale-like, appressed hairs); inflorescence glandular; corolla (probably) blue-lavender, 16-20 mm long, floor 2-rid...
semi-evergreen perennial from Central America
Perennial; canes, erect, stiff, with a mixture of bristle-like prickles, broad based prickles 2-3 mm long, and gland-tipped hairs; leaves pinnately compound, 3- and 5-foliate , crowded on the canes; leaflets 3-5 cm long, finely serrate, tomentose und...