Northern Prairie Wildlife Research Center
Northeast Wetland Flora
Field Office Guide to Plant Species
Juncus canadensis J. Gay
- Family: Rush (Juncaceae)
- Flowering: July-October
- Field Marks: This rush is distinguished by its strongly ribbed leaves, its hemispherical flower
clusters, and its seeds with tails at both ends that are 2/3 as long as the body of the seeds.
- Habitat: Marshes, wet soils.
- Habit: Perennial herb from a thickened rootstock.
- Stems: Upright, usually rather stout, smooth, up to 4 feet tall.
- Leaves: Terete, ribbed with septations, up to 5 inches long.
- Flowers: Variable number of 5-40 crowded into hemispherical heads, the heads bome in cymes up to 1 1/2 feet long, subtended by a short bract.
- Sepals: 3, lanceolate, green, free from each other, up to 1/6 inch long.
- Petals: 3, lanceolate, green, free from each other, up to 1/6 inch long.
- Stamens: 3.
- Pistils: Ovary superior, smooth.
- Fruits: Capsules lanceoloid, reddish brown, somewhat triangular, a little longer than the sepals and petals; seeds with a tail at both ends, the tails 2/3 as long as the body of the seeds.
- Notes: The seeds are eaten by waterfowl.
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