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Cyperaceae » Schoenoplectus pungens
Origin: Native
Voucher:WTU (view specimen records)
Notes: The taxonomy of this species is confusing; see FNA for explanation.
FNA3: "Three varieties of Schoenoplectus pungens (under Scirpus americanus) were recognized for North America by T. Koyama (1963), and three more or less equivalent varieties were recognized by S. G. Smith (1995). These varieties are described informally and illustrated here but not formally recognized because their morphologic delimitation should be evaluated and their exact ranges are still uncertain.
"Schoenoplectus americanus, S. pungens, and S. deltarum belong to the small “Scirpus americanus complex” T. Koyama (1963), in which the species are sometimes difficult to delimit. Schoenoplectus pungens was long known incorrectly as S. americanus Persoon; the type of that name is conspecific with plants formerly treated as S. olneyi A. Gray (A. E. Schuyler 1974). Putative Schoenoplectus pungens × S. americanus hybrids [= S. ×contortus (Eames) S. G. Smith] are locally common. 2n = ca. 86–128."
Literature:
(none)
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Photo © Fred Weinmann
(from WTU Image Collection)
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Taxon treatment authored by Fred Weinmann, Peter F. Zika; last updated 11/30/2009 by David Giblin
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| Scirpus americanus Pers. misapplied in H&C
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| Scirpus olneyi Gray misapplied in H&C
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| Scirpus pungens Vahl
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