Eleocharis tuberculosa (Michx.) Roem. & Schult.
Cone-cup spikerush, Tubercled spikerush, Long-tubercled spikerush
Cyperaceae (Sedge Family)
Synonym(s): Eleocharis simplex, Eleocharis tuberculosa var. pubnicoensis, Scirpus tuberculosa
USDA Symbol: ELTU
Found from Nova Scotia south to Florida and west to Arkansas and southeast Texas, Eleocharis tuberculosa is uncommon in the northern reaches of its range, classified as threatened by Canadas Species at Risk Act, endangered in Maine and New Hampshire, and threatened in New York. It is now extinct in Pennsylvania.
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Plant CharacteristicsDuration: Perennial
Root Type: Fibrous
Leaf Arrangement: Alternate
Leaf Complexity: Simple
Leaf Venation: Parallel
Size Class: 1-3 ft.
Bloom InformationBloom Color: Not Applicable
Bloom Time: May , Jun , Jul , Aug , Sep
Bloom Notes: Perianth absent. Bloom time denotes fruiting period for Eleocharis spp.
DistributionUSA: AL , AR , CT , DC , DE , FL , GA , LA , MA , MD , ME , MS , NC , NH , NJ , NY , PA , RI , SC , TN , TX , VA
Native Habitat: Fresh Water Aquatic
Wildflower Center Seed BankLBJWC-1278 Collected 2013-06-14 in Montgomery County by Lady Bird Johnson Wildflower Center
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Additional resourcesUSDA: Find Eleocharis tuberculosa in USDA Plants
FNA: Find Eleocharis tuberculosa in the Flora of North America (if available)
Google: Search Google for Eleocharis tuberculosa
MetadataRecord Modified: 2010-10-17
Research By: TWC Staff