GNR Unranked - Global rank not yet assessed.
Herbaceous perennial with cord-like creeping rhizomes forming extensive colonies; stems 9-18 cm tall; leaves elliptic to ovate, entire; blades 1-2.8 cm long, 0.5-1.6 cm wide, with a few short hairs; petioles 0.5-3.2 cm long; inflorescence capitate, g...
Caulescent perennial, 3.5-6.5 dm tall; basifixed pubescent; stems buried for 1-6 cm, erect-ascending, forming diffuse clumps; stipules 1.5-4.5 mm long, some connate-sheathing; leaves 3.5-6.5 cm long; leaflets 5-7 (9), linear, acute, strigose, 8-28 m...
Perennial herbs, 15-35 cm high, the stems arising from enlarged woody or lignescent roots. Leaves mostly basal, 10-18 cm long, 1.5-4.0 cm wide, petioles 2-7 cm long, blades ovate to linear-oblanceolate, passing into the petioles, scarcely lobed, of a...
Parasitic annual, which resembles a pile of slender orange-yellow string entangled among weeds and low vegetation; leaves absent; flowers about 2.5 mm long on pedicels often several times as long as the flowers, all arranged in fairly dense clusters;...