Northern Prairie Wildlife Research Center
Aquatic and Wetland Vascular Plants of the Northern Great Plains
41. Lamiaceae, the Mint Family
1. Lycopus L. -- Bugleweed
2. Lycopus asper Greene -- Rough bugleweed
Rhizomatous and usually stoloniferous perennial 2-8 dm tall, arising from thick
tubers on the rhizomes, simple or branched, short-pubescent at least above.
Leaves sessile, elliptic-lanceolate to oblong-lanceolate or linear-lanceolate,
3-9(11) cm long, 0.5-3(4) cm wide, acute-tipped, coarsely and rather regularly
serrate with ascending teeth, tapered to a broad or rarely narrow base. Calyx
lobes as in the preceding, 1-3 mm long; corolla as in the preceding.
Nutlets truncate apically on the outer margin, sometimes somewhat toothed
apically, mostly 1.5-2 mm long, the corky ridge often rather indistinct, mainly
lateral. Jul--Sep. In the same habitats as L. americanus and often found
growing with it; common; (Ont. and MI to B.C., s to IA, KS, NM and CA).
Previous Section -- Lycopus americanus Muhl. ex
Bart. -- American bugleweed
Return to Family -- Lamiaceae - The
Next Section -- Lycopus uniflorus Michx.