Critically Imperiled
Perennial from a slender, creeping, woody rhizome; stems few, usually erect, up to 4 dm high, puberulent throughout, glandular above; leaves entire, the lower ovate, the upper lanceolate, thin, minutely puberulent, amplexical, the upper sessile, the ...
Plants robust annuals to about 8 dm tall; stems to 2 cm thick, pubescent and glandular throughout; stem leaves broadly lanceolate, 4-10 cm long, 1.5-5 cm wide, irregularly crenate-dentate or lobed, lower and basal leaves deeply lobed to pinnatifid; i...
Perennial herb with numerous branched and tangled rhizomes from a central caudex; above-ground stems solitary or in clumps, arising from upturned rhizome tips, forming short, leafy tufts 1-4 cm tall; leaves opposite and sessile, spreading to ascendin...
Glabrous annual herb 10-20 cm high with a single stem branching distally or from near the base; leaves basal and cauline, alternate, twice- or thrice-ternately compound, ultimate divisions filiform, broadly ovate in outline, basal leaves usually with...
Perennial herb with slender rhizomes; stems erect, growing in clumps, but not densely matted, 9-18 cm tall, glabrous; leaves opposite, sessile, linear to linear-lanceolate, 27-35 mm long, ciliate at base; flowers solitary in upper leaf axils; peduncl...
Perennial herb; stems to 30 cm high, densely hairy, usually with 12-16 small bract-like leaves below the flower cluster; basal leaves oblong, mostly 7-11 cm long, 25-30 mm wide, rounded at the tip, with rounded teeth on the margins; petioles about 5-...
Perennial, to 8.5 dm tall from slender ovoid bulbs; basal leaves linear, to 35 cm long; stem leaves fewer and smaller; flowering stem, one per bulb; inflorescence sparsely branched or a single raceme with small leaf-like bracts below each flower that...