Eleocharis tuberculosa explained

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.^{[1] [2] [3]}

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.^{[1] [4] [5] [6] [7] [8]}

Notes and References

1. http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=242357808 Flora of North America v 23 p 92, Eleocharis tuberculosa.
2. http://bonap.net/MapGallery/County/Eleocharis%20tuberculosa.png BONAP (Biota of North America Program) floristic synthesis, Eleocharis tuberculosa
3. 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.
4. https://www.biodiversitylibrary.org/page/719841#page/160/mode/1up Roemer, Johann Jakob & Schultes, Josef August. 1817. Systema Vegetabilium 2: 152.
5. House, Homer Doliver. 1920. American Midland Naturalist 6: 205.
6. Godfrey, R. K. & J. W. Wooten. 1979. Aquatic and Wetland Plants of Southeastern United States Monocotyledons 1–712. The University of Georgia Press, Athens.
7. Wunderlin, R. P. 1998. Guide to the Vascular Plants of Florida i–x, 1–806. University Press of Florida, Gainesville.
8. Fernald, M. 1950. Gray's Manual of Botany (ed. 8) i–lxiv, 1–1632. American Book Co., New York.