Oclemena is a small genus of North American flowering plants in the tribe Astereae within the family Asteraceae.

[1][2] It is native to northeastern North America, found in wet or dry woodlands, and sometimes in clearings in the woods, or in acid bogs and peat.

[3] The finely woolly stem grows in a zig-zag fashion to a height 30–100 cm (1–3 ft).

The scarious floral bracts consist of narrow chlorophyllous bands, tinted with purple along the midrib.

The Kew database Vascular Plant Families and Genera categorizes Oclamena under the genus Aster L. But taxonomically, Oclemena belongs to the North American clade of the tribe Astereae, as a basal member of one of the main branches.