Verbena simplex Lehm.
Common Name: NARROW-LEAVED VERVAIN
Coefficient of Conservatism: 6
Coefficient of Wetness: 5
Wetness Index: UPL
Physiognomy: Nt P-Forb

Verbena simplex B. S. Walters

Plants on limestone pavements (alvars) at Drummond Island and on thin soil over limestone in Lenawee and Monroe Cos. are presumably native; elsewhere in the state, collections from sandy fields, disturbed places, and railroads may at least in part be adventive.

This blue-flowered species has spikes almost as slender and remotely flowered as in the white-flowered V. urticifolia, which has broad leaf blades and distinct petioles.

Locations

Alpena County
Chippewa County
    Only on Drummond Island
Emmet County
Leelanau County
Lenawee County
Monroe County
St. Clair County
Wayne County

Citation:

MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. December 16, 2017. http://www.michiganflora.net/species.aspx?id=2772.