Minuartia dawsonensis (Britton) House
Common Name: ROCK SANDWORT
Synonym: Arenaria stricta
Coefficient of Conservatism: 10
Coefficient of Wetness: 5
Wetness Index: UPL
Physiognomy: Nt P-Forb

Included in Arenaria stricta in Michigan Flora.

Rocky shores and rock crevices near the shores of the Great Lakes.

A compact and densely tufted plant; our few Michigan specimens are 8–15 cm tall, while the mat-forming M. michauxii is typically (10–) 15–35 cm tall. A few specimens from dunes in the Lower Peninsula, otherwise typical of M. michauxii in form, do appear to have petals (at least some) shorter than the sepals. 

Locations

Keweenaw County
    Only on Isle Royale
Mackinac County
Schoolcraft County

Citation:

MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. July 23, 2019. https://www.michiganflora.net/species.aspx?id=759.