WHERE’S WILDLIFE • GRASS, SEDGE & RUSH FIELD GUIDE

Dark Green Bulrush

Scirpus atrovirens

A leafy native wetland plant whose branching flower heads carry rounded clusters of small spikelets. Also called Green Bulrush.

Dark Green Bulrush. Select the photograph to enlarge it.

NATIVE • NORTH AMERICA

At a glance

Family: Cyperaceae
Life cycle: Perennial
Height: 3–5 feet
Habitat: Marshes, wet fields, ditches and shores

Sightings map

Explore reported observations. Sightings are not a complete range map.

How to recognize it

Key identification clues

  • Rounded heads contain many tightly grouped spikelets.
  • Leafy stems have three sides with rounded angles.
  • Lower leaf sheaths have conspicuous cross-partitions.

Where and when to look

Look in marshes, wet fields, ditches and shores. Compare developing flower heads with mature fruiting plants.

Compare & confirm

Pale Bulrush and several other Scirpus species look similar. Mature floral scales, fruit bristles and sheath details are useful comparisons.

A closer look

Flowers & fruit

Spikelet heads start green and darken as they mature. Each contains many tiny flowers; their fruits are small achenes.

Leaves & stems

Broad, grasslike leaves grow along the stem. Examine the lower sheaths as well as the flower heads.

Field photographs

5 field photographs. Select a photograph to enlarge it.

Range & sightings

Explore submitted observations for a view of this species’ reported distribution.

Observation maps show submitted records, not every place the plant occurs. Follow local access rules when visiting a site.

Keep learning

Explore more grasses, sedges and rushes in the field guide.

Sources & further reading

Photographs and species identifications: Brian Woolman, Where’s Wildlife.

Minnesota Wildflowers: Dark Green Bulrush · Missouri Department of Conservation: Bulrushes

Comments & Identification Feedback

Spotted a possible identification error or have an observation to share? Leave a comment below. For an ID correction, include the photo filename and the features that support your suggestion.

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