| Family | Scientific Name | Common Name | Habitat | Distribution | Image |
|---|
| Asteraceae | Oclemena ×blakei | Blake's Aster | Bogs and other wet, saturated places. | NL (Newfoundland west to ON, south to s. NJ, PA, and MI. | |
| Asteraceae | Oclemena acuminata | Whorled Aster, Whorled Nodding-aster | Spruce-fir forests, northern hardwood forests, mountain seepages and streambanks, other cool, moist situations. | NL (Newfoundland) and QC south to w. NC, nw. SC (Bradley et al. [in prep.]), ne. GA, and e. TN. | 
|
| Asteraceae | Oclemena nemoralis | Leafy Bog Aster, Bog Nodding-aster | Peaty bogs. | NL (Labrador) and ON south to nc. PA, MD ("a single site, ... where… believed planted" [Knapp & Naczi 2021]), DE (formerly), and NJ. | 
|
| Asteraceae | Oclemena reticulata | Pine-barren Aster | Wet pine flatwoods. | Se. SC south through e. GA to c. peninsular FL. | 
|