Narrowleaved Cottonsedge (Eriophorum angustifolium)
- Family: Sedge (Cyperaceae)
- Flowering: June-August.
- Field Marks: Cottonsedges are distinguished by their cottony fruiting heads. Narrowleaved cottonsedge has several heads per plant, flat leaves, and merely pointed scales.
- Habitat: Bogs.
- Habit: Perennial herb.
- Stems: Erect, stiff, smooth, somewhat triangular, up to 2 feet tall.
- Leaves: Long, narrow, flat, rough along the edges, up to 1/6 inch broad.
- Flowers: 1 per spikelet, with many spikelets forming a head and several heads per plant; scales ovate-lanceolate, pointed, green or brown; bristles numerous, white, appearing cottony, up to 1 inch long.
- Sepals: 0.
- Petals: 0.
- Stamens: Usually 3.
- Pistils: 1; styles 3; ovary superior.
- Fruits: Achenes obovoid, pale brown, 1/10-1/6 inch long.
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