Data provided by the participants of the Consortium of California Herbaria

View additional distribution information on the Jepson eflora

Dulichium is a monotypic genus of sedge containing the single species Dulichium arundinaceum, which is known by the common name threeway sedge. This is an aquatic or semi-aquatic plant of the lakes, streams, and ponds of North America. It has a wide distribution, covering much of the continent. It has a thick rhizome system and grows to heights approaching a meter. It is reminiscent of bamboo in appearance when new, growing bright green erect stalks in large, grassy stands. The leaves sheath the stems, and the flower cluster grows from the leaf axilla. The spikelets are generally lance-shaped and one to three centimeters long when ripe.

Plant type

Grass

Size

3 ft Tall

Form

Upright

Growth rate

Moderate

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Color

Brown, Green

Flowering season

Summer

Sun

Full Sun, Partial Shade

Soil description

Adaptable, tolerant of sand, loam and clay.

Sunset Zones

1*, 2*, 3, 4, 5, 6*, 7*, 14*, 15*, 16*, 17*, 18, 19, 20, 21, 22, 23, 24

Site type

Edges of lakes and ponds

Plant communities

Red Fir Forest, Yellow Pine Forest, Wetland-Riparian