Oclemena

Oclemena
Oclemena nemoralis (bog aster)
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Subfamily: Asteroideae
Tribe: Astereae
Subtribe: Oclemininae
G.L.Nesom
Genus: Oclemena
Greene
Synonyms
Heterotypic synonyms
    • Aster sect. Nemorali House
    • Aster sect. Orthomeris (Torr. & A.Gray) Benth. & Hook.f.
    • Aster subg. Orthomeris (Torr. & A.Gray) A.Gray
    • Galatella sect. Calianthus Nutt.

Oclemena is a genus of flowering plants in the tribe Astereae within the family Asteraceae. All species in the genus are native to eastern North America. The species were originally included in the genus Aster so they are often referred to simply as asters. Since their flower heads are nodding in bud, they are sometimes called nodding-asters.