Cyperaceae
Green bulrush
Scirpus atrovirens
- Family
- Cyperaceae
- Genus
- Scirpus
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Common names
By language (2)
- English
- Green bulrush, Black bulrush, Dark-green bulrush, Wool bulrush
- French
- Scirpe noirâtre
Synonyms
- Holoschoenus atrovirens (Willd.) Link
- Scirpus atrovirens f. angustispicatus Fernald
- Scirpus atrovirens f. atrovirens
- Scirpus atrovirens f. cephalanthus Fernald
- Scirpus atrovirens f. proliferus F.J.Herm.
- Scirpus atrovirens f. sychnocephalus (S.N.Cowles) S.F.Blake
- Scirpus atrovirens f. viviparus Vict.
- Scirpus atrovirens var. atrovirens
- Scirpus atrovirens var. pycnocephalus Fernald
- Scirpus sylvaticus var. atrovirens (Willd.) A.Gray
- Scirpus sylvaticus var. sychnocephalus S.N.Cowles
Flowers
- In flower
- June to August (from 22 flowering iNaturalist observations worldwide)
- Flower colour
- brown (USDA PLANTS Database)
Characteristics
- Growth habit
- Graminoid
- Lifespan
- Perennial
- In the US and Canada
- Canada: native, Lower 48 states: native
Photos
FlowerPhoto: Donald Davesne, CC BY 4.0, from iNaturalist 
FlowerPhoto: Chris, CC BY-SA 4.0, from iNaturalist 
FlowerPhoto: Chris, CC BY-SA 4.0, from iNaturalist 
FlowerPhoto: Donald Davesne, CC BY 4.0, from iNaturalist 
LeavesPhoto: Étienne Lacroix-Carignan, CC0, from iNaturalist 
Photo: rboles, CC BY 4.0, from iNaturalist 
Photo: Ayotte, Gilles, 1948-, CC BY-SA 4.0, from Wikimedia Commons 
Photo: naturalist charlie, CC BY 4.0, from iNaturalist 
Photo: Ayotte, Gilles, 1948-, CC BY-SA 4.0, from Wikimedia Commons 
Photo: botanygirl, CC BY 4.0, from iNaturalist 
Photo: Ayotte, Gilles, 1948-, CC BY-SA 4.0, from Wikimedia Commons 
Photo: Ayotte, Gilles, 1948-, CC BY-SA 4.0, from Wikimedia Commons
More in Scirpus
- Wood club-rushScirpus sylvaticusCyperaceae
- Scirpus radicansCyperaceae
- Panicled bulrushScirpus microcarpusCyperaceae
- WoolgrassScirpus cyperinusCyperaceae
- Rufous bulrushScirpus pendulusCyperaceae
- Congdon's bulrushScirpus congdoniiCyperaceae
- Scirpus wichuraeCyperaceae
- Barbedbristle bulrushScirpus ancistrochaetusCyperaceae
- Georgia bulrushScirpus georgianusCyperaceae
- Long's bulrushScirpus longiiCyperaceae
- Scirpus ternatanusCyperaceae
- Umbrella bulrushScirpus diffususCyperaceae
Sources: classification, synonyms from World Flora Online Plant List (2026-06, CC0 1.0); common names, popularity from Wikidata (2026-10-26, CC0 1.0); common names, US characteristics from USDA PLANTS Database (2025-05-29, CC0 1.0). About our plant data.