Eleocharis tuberculosa

Eleocharis tuberculosa, the cone-cup spikerush, is a plant species native to the United States and Canada. It has been reported from every state on the Gulf and Atlantic coasts from Maine to Texas, plus Kentucky, Tennessee, Arkansas and Nova Scotia. It is found in wet soil in meadows, woodlands, lake shores and river banks.[3][4][5]

Eleocharis tuberculosa
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Monocots
Clade: Commelinids
Order: Poales
Family: Cyperaceae
Genus: Eleocharis
Species:
E. tuberculosa
Binomial name
Eleocharis tuberculosa
(Hartmann) O. Schwarz
Synonyms[1][2]
  • Bulbostylis tuberculosa (Michx.) Steven
  • Chlorocharis tuberculosa (Michx.) Rikll
  • Eleocharis tuberculosa var. pubnicoensis Fernald
  • Eleocharis tuberculosa f. pubnicoensis (Fernald) Svenson
  • Eleocharis tuberculosa f. retrorsa Svenson
  • Megadenus tuberculatus (Elliott) Raf.
  • Rhynchospora monostachya Steud.
  • Scirpus tuberculatus Elliott
  • Scirpus tuberculosus Michx.
  • Trichophyllum tuberculosum (Michx.) House

Eleocharis tuberculosa is a perennial herb forming dense clumps. Culms are elliptical in cross-section, up to 70 cm tall. Styles of pistillate flowers have a swollen base called a tubercule, white to pale orange-brown, often with red spots, up to 2.5 mm across.[3][6][7][8][9][10]

References
  1. Tropicos
  2. The Plant List
  3. Flora of North America v 23 p 92, Eleocharis tuberculosa.
  4. BONAP (Biota of North America Program) floristic synthesis, Eleocharis tuberculosa
  5. Gleason, H. A. & A.J. Cronquist. 1968. The Pteridophytoa, Gymnospermae and Monocotyledoneae. 1: 1–482. In H. A. Gleason New Britton and Brown Illustrated Flora of the Northeastern United States and Adjacent Canada (ed. 3). New York Botanical Garden, New York.
  6. Roemer, Johann Jakob & Schultes, Josef August. 1817. Systema Vegetabilium 2: 152.
  7. House, Homer Doliver. 1920. American Midland Naturalist 6: 205.
  8. Godfrey, R. K. & J. W. Wooten. 1979. Aquatic and Wetland Plants of Southeastern United States Monocotyledons 1–712. The University of Georgia Press, Athens.
  9. Wunderlin, R. P. 1998. Guide to the Vascular Plants of Florida i–x, 1–806. University Press of Florida, Gainesville.
  10. Fernald, M. 1950. Gray's Manual of Botany (ed. 8) i–lxiv, 1–1632. American Book Co., New York.


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