Much like no. 1 [Agastache nepetoides (L.) Kuntze]; lvs glabrous to villous beneath; spikes cylindric or tapering, to 15 cm, 1.5-2 cm thick (including the cors); bracts round- ovate, caudate-acuminate, often projecting; cal 7-9 mm at anthesis, the lobes 2-2.5 mm, lance-triangular, with straight or concave sides, sharply acute or acuminate; cor purplish. Upland woods; Vt. and N.Y. to Minn. and e. S.D., s. to N.C. and e. Kans. Aug., Sept.
Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp.
A rare plant and found more often in the northern part of the state. It is generally found in somewhat moist and sandy soil in dry, open woods and along roadsides. The flowers vary greatly in color. They are usually purplish but sometimes nearly white with a tinge of purple or pink.
Indiana Coefficient of Conservatism: C = 4
Wetland Indicator Status: N/A
Diagnostic Traits: Stems to 1.5 m, +/-glabrous; spikes often more than 1.4 cm wide; stamens exserted from purplish (or white) bilabiate corolla; stamens 4.