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Eleocharis tuberculosa (Cone-cup spikerush) | NPIN

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Eleocharis tuberculosa

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 Native Status: L48 (N), CAN (N)

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 Characteristics

Duration: Perennial
Habit: Grass/Grass-like
Root Type: Fibrous
Leaf Arrangement: Alternate
Leaf Complexity: Simple
Leaf Venation: Parallel
Inflorescence: Spikelet
Size Class: 1-3 ft.

Bloom Information

Bloom Color: Not Applicable
Bloom Time: May , Jun , Jul , Aug , Sep
Bloom Notes: Perianth absent. Bloom time denotes fruiting period for Eleocharis spp.


USA: AL , AR , CT , DC , DE , FL , GA , LA , MA , MD , ME , MS , NC , NH , NJ , NY , PA , RI , SC , TN , TX , VA
Canada: NS
Native Habitat: Fresh Water Aquatic

Wildflower Center Seed Bank

LBJWC-1278 Collected 2013-06-14 in Montgomery County by Lady Bird Johnson Wildflower Center

1 collection(s) available in the Wildflower Center Seed Bank

Recommended Species Lists

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Additional resources

USDA: Find Eleocharis tuberculosa in USDA Plants
FNA: Find Eleocharis tuberculosa in the Flora of North America (if available)
Google: Search Google for Eleocharis tuberculosa


Record Modified: 2010-10-17
Research By: TWC Staff

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