Family: Verbenaceae
hoary verbena, hoary vervain
Merel R. Black
Christopher Noll
University of Wisconsin - Madison (WIS-VP)
Etymology: Verbena: ancient Latin name of the common European vervain
Plants: erect, annual/perennial, 8"-36" tall forb, stout, with dusty-looking, long hairs; stems square
Leaves: opposite, oval to elliptical, stalkless, sharply toothed
Flowers: deep blue to purple, 5-parted, 1/8"-1/4" wide; inflorescence usually 1 to a few, 8" long, thick spikes; blooms July-Sept.
Fruits: 4 elliptical, separating nutlets
Habitat: full sun; dry to moderate moisture; disturbed sites, prairies, inland sands, fields; in sandy, loamy soil
Conservation Status: Native
Plants: erect, annual/perennial, 8"-36" tall forb, stout, with dusty-looking, long hairs; stems square
Leaves: opposite, oval to elliptical, stalkless, sharply toothed
Flowers: deep blue to purple, 5-parted, 1/8"-1/4" wide; inflorescence usually 1 to a few, 8" long, thick spikes; blooms July-Sept.
Fruits: 4 elliptical, separating nutlets
Habitat: full sun; dry to moderate moisture; disturbed sites, prairies, inland sands, fields; in sandy, loamy soil
Conservation Status: Native
Floristic Rating: Coefficient of Conservatism = 3 Atlas of the Wisconsin Prairie and Savanna Flora: by T.S. Cochrane & H.H. Iltis: habitat, distribution infomation / flowering and fruiting times USDA Plants Database: Federal Distribution and detailed information including photos USDA Agricultural Research Service (ARS): Images of seeds, fruits, embryos, etc. Illinois Wildflowers: Wonderful photographs; detailed descriptions; color and leaf arrangement key Dan Tenaglia's The Missouri Flora: Fabulous photographs; detailed descriptions; color and leave arrangement key. Southwest School of Botanical Medicine: Britton & Brown Illustrated Flora - 2nd Edition (1913) "An Illustrated Flora of the Northern United States and Canada"
Christopher Noll
Emmet J. Judziewicz
Kitty Kohout
Aaron Carlson
Aaron Carlson
Botancial Illustration
Richard Bauer
Merel R. Black
Christopher Noll
Christopher Noll
Christopher Noll
Aaron_Carlson
Aaron_Carlson
Aaron_Carlson
Merel R. Black
Aaron Carlson
Kenneth J. Sytsma
