Coefficient of Conservatism:
Coefficient of Wetness:
Nt Fern Al
Moist deciduous, mixed conifer-hardwood, or coniferous forests, often on mossy boulders, logs, and hummocks; frequent and one of the most common clubmosses throughout the state.
This is a distinctive and easily identified species in our flora with several unique features, including toothed, narrowly obovate leaves, stems with conspicuous annual constrictions, and, more microscopically, stomata only on the lower surface of the leaves.
The primary complication is that it may hybridize with H. selago to form H. ×buttersii (Abbe) Kartesz & Gandhi. This hybrid is known in Michigan from Chippewa, Emmet, Keweenaw, Luce, Marquette, and Schoolcraft Counties. and resembles a slender H. lucidula. It is best confirmed by abortive spores, and the presence of scattered stomata on the upper leaf surface.
Huperzia porophila is known on sandstone or basaltic cliff ledges on the north shore of Lake Superior in Ontario, as well as in Minnesota and Wisconsin and could well occur in Michigan. It resembles a small H. lucidula, but with the leaves narrowly triangular to narrowly oblong (widest at or below the middle) and inconspicuous annual constrictions. It is of hybrid origin between H. appressa and H. lucidula, but the abortive-spored primary hybrid, H. ×protoporophila, is also not known in the state, though it should be looked for on Isle Royale.