VII. Subfam. Nepetoideae (Dumort.) Luerss. (1882).

VII. 2. Tribe Mentheae Dumort. (1827).

VII. 2. B. Subtribe Menthinae (Dumort.) Endl. (1838).


Rhizomatous or stoloniferous perennial herbs, weakly to strongly aromatic; leaves petiolate, ovate to lanceolate or elliptic, serrate to serrulate; inflorescence a verticillastrate thyrse of terminal and subterminal glomerules; bracts ovate to lanceolate, forming an involucre subtending inflorescence; flowers subsessile; bracteoles absent; calyx zygomorphic, not accrescent, cylindrical, 13-nerved, 5-lobed (3/2), lobes lanceolate-attenuate to subulate, setose, posterior lobes partially fused to form long upper lip, anterior lobes shorter, free above tube, throat sparsely hairy; corolla purple to white, 2-lipped (1/3), posterior lip entire, anterior lip 3-lobed, median lobe narrower than other 2, tube curved, corolla in bud falcate; stamens 2 fertile (posterior pair reduced to staminodes), exserted, filaments glabrous, thecae divaricate, separate at dehiscence; stigma-lobes unequal; disc symmetrical; nutlets ellipsoid to ovoid, obscurely trigonal, smooth, glabrous.  Three species, eastern North America.


Native to:

72 Eastern Canada
74 North-Central U.S.A.
75 Northeastern U.S.A.
77 South-Central U.S.A.
78 Southeastern U.S.A.


Blephilia Raf., Amer. Monthly Mag. & Crit. Rev. 4: 190 (1819); Simmers & Kral, Rhodora 94: 1-14 (1992).

Image resource

Royal Botanic Gardens, Kew