Contains 4 accepted taxa overall.

Characteristics

Scirpus L.
BULRUSH

Classification

POALES
Scirpus

Citation

SCIRPUS Linnaeus, Sp. Pl. 47. 1753, nom. cons.
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TYPE: Scirpus sylvaticus Linnaeus, typ. cons.

Species

Scientific Name Common Name Herbarium Specimens Status Photos
Scirpus cyperinus WOOLGRASS Native OBL (NWPL) OBL (DEP)
Scirpus divaricatus SPREADING BULRUSH Native OBL (NWPL) OBL (DEP)
Scirpus lineatus DROOPING BULRUSH Native OBL (DEP)
Scirpus pendulus RUFOUS BULRUSH Native OBL (NWPL) OBL (DEP)

Identification Key

1.  Spikelets to ca. 700 per culm, with the perianth bristles long-exserted, giving the spikelet a woolly appearance; achene 0.6-0.9 mm long, 0.3-0.5 mm wide
1.  Spikelets to ca. 250 per culm, with the perianth bristles not or only scarcely exserted, not at all woolly in appearance; achene 0.8-1.7 mm long, 0.6-0.8 mm wide
2
2.  Spikelet 1-2 mm wide; spikelet scales 1-1.8 mm long; perianth bristles smooth to toothed; achene 0.8-1 mm long, strongly trigonous with flat to concave faces
2.  Spikelet 2-3 mm wide; spikelet scales 1.8-2.5 mm long; perianth bristles smooth; achene 1-1.5 mm long, plano-convex to trigonous with convex sides
3
3.  Mature culms reclining, inflorescences bending to (or nearly to) ground, with 2–3 lateral inflorescences in axils of distal leaves in addition to terminal inflorescence; rays and pedicels scabrous or scabrellous throughout or only in distal 1/2, often proliferous with axillary bulblets
3.  Mature culms erect or ascending, with terminal inflorescences only or sometimes with 1(2) lateral inflorescences in axils of distal leaves; rays and pedicels scabrous near nodes, otherwise smooth, axillary bulblets absent

Genus Synonyms

Synonym Full Citation Basionym Type
Androcoma Androcoma Nees von Esenbeck, J. Bot. (Hooker) 2: 396. 1840. TYPE: Androcoma speciosa Nees von Esenbeck
Dichismus Dichismus Rafinesque, J. Phys. Chim. Hist. Nat. Arts 89: 106. 1819. TYPE: Non designatus.
Diplarinus Diplarinus Rafinesque, J. Phys. Chim. Hist. Nat. Arts 89: 106. 1819. TYPE: Non designatus.
Holoschoenus Holoschoenus Link, Hort. Berol. 1: 293. 1827. TYPE: Holoschoenus vulgaris Link (Schoenus holoschoenus Linnaeus)
Nemocharis Nemocharis Beurling, Bot. Not. 1853: 52. 1853. TYPE: Non designatus.
Phylloscirpus Phylloscirpus Doell ex Boerner, Bot.-Syst. Not. 260. 1912, non C. B. Clarke 1908. TYPE: = Scirpus Linnaeus 1753.
Scirpo-cyperus Scirpo-cyperus Seguier, Pl. Veron. 3: 71. 1754. TYPE: Non dseignatus.
Seidlia Seidlia Opiz, Naturalientausch 11: 349. 1826. TYPE: = Scirpus Linnaeus 1753.