Please try our next iteration of the Michigan Flora Online here. Beginning on February 1, 2023, will point to this new site.

The new site offers several benefits over the existing website, including real coordinate mapping, giving a clearer view of the density of documentation as well as more precision about plant distributions and their link to landforms. We will also have the ability to update species pages more regularly, both in terms of new collections and as more existing Michigan specimens are georeferenced. In addition, we have a better photo display, and offer indented keys.

Sisyrinchium montanum Greene
Coefficient of Conservatism: 4
Coefficient of Wetness: 0
Wetness Index: FAC
Physiognomy: Nt P-Forb

Moist open, often grassy places; sandy, gravelly shores (or in rock crevices); mixed forests, especially in disturbed areas and clearings; old railroad beds, banks of ditches, and roadsides through wet ground.

This is a lighter green plant than S. mucronatum, with a more glaucous aspect; the margins of stems and leaves are usually minutely denticulate. The outer spathe bract margins are fused basally up to about 4 or 5 mm. The commoner plant in Michigan is var. crebrum Fernald. It has deep green foliage, which dries rather dark, and green or purple tinged capsules, dark when ripe. Variety montanum occurs less commonly in Michigan, but has been collected essentially throughout the state. It is a paler plant, with capsules a pale straw-color even when ripe. The spathes of var. crebrum are often strongly tinged with purple.

Rare plants with peduncled spathes would key to S. angustifolium, from which they differ in generally narrower stems, failure to darken dramatically in drying, and purple tinge of spathes and capsules. They differ from S. strictum in often slightly wider stem, leaf-like outer bract of spathe, and absence of wing-margin on pedicels.


Alcona County
Alger County
Alpena County
Arenac County
Baraga County
Bay County
Charlevoix County
    Including Beaver Island
Cheboygan County
Chippewa County
    Including Drummond Island
Clare County
Crawford County
Delta County
Dickinson County
Emmet County
Gladwin County
Gogebic County
Grand Traverse County
Houghton County
Huron County
Iosco County
Iron County
Kalkaska County
Keweenaw County
    Including Isle Royale
Leelanau County
    Including Fox Islands
    Including Manitou Islands
Luce County
Mackinac County
    Including Bois Blanc, Mackinac, Round Islands
Marquette County
Mason County
Mecosta County
Menominee County
Midland County
Newaygo County
Oceana County
Ontonagon County
Oscoda County
Presque Isle County
Roscommon County
Saginaw County
Sanilac County
Schoolcraft County
St. Clair County
Tuscola County
Wayne County


MICHIGAN FLORA ONLINE. A. A. Reznicek, E. G. Voss, & B. S. Walters. February 2011. University of Michigan. Web. January 30, 2023.