Wood Club Rush

Plant / resting place / within
puparium of Cerodontha scirpi may be found in leaf-mine of Scirpus sylvaticus
Other: sole host/prey

Foodplant / sap sucker
adult of Cymus aurescens sucks sap of Scirpus sylvaticus

In Great Britain and/or Ireland:
Foodplant / parasite
sorus of Dicellomyces scirpi parasitises live leaf of Scirpus sylvaticus

Foodplant / saprobe
superficial, sessile, clypeate apothecium of Micropeziza cornea is saprobic on dead stem of Scirpus sylvaticus
Remarks: season: 3-7

Foodplant / saprobe
amphigenous colony of Arthrinium dematiaceous anamorph of Physalospora scirpi is saprobic on often dry, bleached, dead leaf of Scirpus sylvaticus
Other: major host/prey

Foodplant / saprobe
very shortly stalked apothecium of Psilachnum asemum is saprobic on dead leaf of Scirpus sylvaticus
Remarks: season: 7

Scirpus sylvaticus L> var. Bissellii Fernald, Rhodora2:21. 1900.
Scirpus sylvaticus of many American authors. Not S. sylvaticus L. 1753, sensu stricto.
Scirpus microcarpus var. Bissellii House, Bull. N. Y. State Mus. 243-244: 18. 1923.
Scirpus sylvaticus f. Bissellii D. S. Carpenter; Dole, Fl. Vermont, ed. 3, 76. 1937.
Scirpus expansus Fernald, Rhodora 45: 293. 1943.
Scirpus expansus i. Bissellii Fernald, Rhodora 45: 294. 1943.
Scirpus expansus f. globulosus Fernald, Rhodora 45: 294. 1943.
Fibrous-rooted perennial; culms to 6 dm. tall, stout, green, 5-8 mm. broad at the base, 3 mm. broad at the summit, sharply trigonous, scabrous (rarely smooth) on the angles, leafy to the summit; sheaths reddish, ca. 5 cm. long, the blades 3-6 dm. long, 1-2.5 cm. broad, rarely broader; involucral bracts 1.5-3 cm. long, often overtopping the inflorescence; compound umbel terminal, the branches mostly ascending, the primary rays up to 12 cm. long, closely pilose, the branches shorter, terminating in 1-8 spikelets; spikelets 3-5 mm. long, lanceolate-acute to ovoid; scales having prominent green midribs, subulate-acuminate, the sides red-streaked, the margins greenish-black, hyaline; bristles white, retrorsely barbed, equaling or slightly exceeding the achene; style trifid, reddish; achene 1-1.25 mm. long, white or pale brown, oval, obtusely trigonous, apiculate.
Type locality: Southington, Connecticut.
Distribution: The east coast of the United States from Maine to Georgia; occasionally inland.

Scirpus sylvaticus, the wood clubrush, is a species of flowering plant in the sedge family.

Scirpus sylvaticus can reach 1 m, and has triangular stems.

S. sylvaticus widespread in Eurasia, is very common in the European part of Russia and in Southern Siberia. It is most often a coastal species, occurring in wet habitat such as marshes in brackish and saltwater, along swamps, along the banks of water bodies, in marshy forests and in wet meadows. It is a perennial herb growing from a rhizome system with associated tubers.

This plant is an important food source for waterfowl. The seeds are food for birds and other animals, such as muskrats.