Plant Communities:
Mixed Evergreen Forest
Yellow Pine Forest
wetland-riparian

Synonyms:
Eleocharis obtusa var. ellipsoidalis
Eleocharis obtusa var. gigantea
Eleocharis obtusa var. jejuna
Eleocharis obtusa var. obtusa
Eleocharis obtusa var. peasei
Eleocharis ovata var. obtusa
Scirpus obtusus