Perennial by rootstock. Culm: obtusely triangular, stiff, smooth, slender. Leaves: filiform, channeled; spikelet terminal, solitary, erect; involucre none; scales spirally imbricated, ovate-lanceolate, long-acuminate, purplish-brown, membranous; bristles numerous, white or slightly yellowish, weak.

Plate VIII

Hare's Tail (Eriophorum callitrix)

Hare's Tail (Eriophorum callitrix)

Close beside the margins of the alpine lakes and streams may this soft fluffy-headed Sedge be found. It has a tall culm, two or three slender channelled leaves, and a single terminal white or cream-coloured head composed of fine silky bristles.

Eriophorum angustif olium, or Cotton Grass, has very narrow leaves, and is a smaller, more delicate plant than the preceding species.