An herb differing from other Agastache by having attenuate calyx teeth 1/4 the total length of the calyx or more, herbaceous stems, a calyx tube that is straight or nearly so and 2-4 mm in diameter when pressed, with straight and conspicuous costae. ...
Rhizomatous perennial from subterranean caudex; stems few or several, to about 20 cm long, decumbent; herbage with short, stiff, spreading or incurved hairs 0.6-0.8 mm long; stipules connate; leaves 1.5-8 cm long; leaflets broad, glabrous or glabrate...
Perennial; stems short, prostrate, 1-6 cm long; herbage densely villous or villosulous with basifixed hairs; leaves 4-9 cm long; leaflets (7)9-15, often folded, 3-12 mm long, 2-3 times longer than wide; stipules free; inflorescences taller than or i...
Gray-green shrub to 1 m tall, much-branched; leaves short-petiolate or sessile, elliptic-ovate to narrowly oblong, about 1-2 cm long, grayish with a fine scurf; plants unisexual, the flowers in small clusters in more or less profuse terminal panicles...
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...
Annual herb with 1 or few erect stems, 2-5 dm tall with long-villose, non-glandular hairs mixed with shorter gland-tipped hairs; leaves oblong to lanceolate, unlobed, 3-nerved, 2-4 cm long, with strongly wavy margins and bases clasping the stem; flor...
Hemiparasitic perennial herb, multi-stemmed, to approximately 40 cm tall; stem pubescence unbranched, whitish-gray tomentose; leaves alternate, sparsely scabrous-hispid above, moderately scabrous-hispid below; lower and middle leaves lanceolate, enti...