Perennial herb; stems gray-green, glabrous, up to 70 cm tall, branching from the base; leaves opposite, entire, slightly thickened, basal leaves short petiolate, ovate to elliptic, to 12 cm long, stem leaves smaller, sessile, ovate to lanceolate; flo...
Plants perennial, glabrous; stems stout, 3-6 dm tall; leaves opposite, basal usually withered at flowering time, stem leaves narrowly lanceolate; inflorescence one-sided, narrow, not glandular; calyx lobes lanceolate, 4-8 mm long; corolla blue, purpl...
Erect shrub 1-2 m tall; leaves opposite, ovate, ovate-lanceolate or narrowly elliptic, margins entire, 10-35 mm long, 4-17 mm wide, glabrous or glabrescent above, sparsely villous hairy below, petiole about 2 mm long; flowers usually solitary (rarely...
Biennial or short-lived perennial, usually densely pubescent, the hairs sessile or short-stipitate, simple or forked, 5- to 9-rayed, smooth or finely granular; stems several, erect or the outer ones decumbent or procumbent, simple or sometimes much b...
Perennial, densely pubescent and rough-granular to the touch; trichomes on short stalks, rays several, distinct, usually bifurcate; stems spreading or erect, simple, about 10 cm long; basal leaves entire, 3-4 cm long, blades elliptical to obovate, na...
Perennial herb to 8 cm tall; stems and rootstocks numerous, short, and almost matted, appearing caespitose; leaves digitately 5-foliate; leaflets divided terminally into three lobes; leaflet bases narrowly cuneate; midvein of leaflets raised on lower...
Succulent perennial from a thick, fleshy rootstock; stems one to several, 2-23 cm tall; leaves sessile, alternate, coriaceous, glabrous and glaucous, obovate to oblanceolate, margins entire to sparsely dentate, 1.5-3 cm long and 4-7 mm wide; inflores...
Erect shrub to 2.0 m tall; stems erect or ascending, unarmed, the twigs glandular-pubescent; leaves reniform to orbicular, shallowly 3- to 5-lobed, margins crenate-dentate, base cordate to cuneate, both surfaces glandular-pubescent; hypanthium about ...
Perennial herb; stem up to 7 dm tall, leafy throughout, but the leaves progressively reduced upwards; leaves bright green, thin, lanceolate to narrowly triangular, up to 14 cm long and 5 cm wide, those at the base with petioles up to 7 cm long, the s...
