This section is from the book "British Wild Flowers - In Their Natural Haunts Vol5-6", by A. R. Horwood. Also available from Amazon: A British Wild Flowers In Their Natural Haunts.
The habitat of this rush is woods, thickets, and shady places. The habit is the usual rush type. The rootstock is short and tufted, with slender stolons. The stems are slender, numerous. The leaves are as long as the stem, broad, lance-shaped, soft, sparsely hairy. The bracteoles are short and broad. The flowers are in a loose cyme, with few, turned-down, hair-like branches in fruit. The flowers are more or less solitary, chestnut-brown, paired. The perianth-segments have a long, narrow point, shorter than the capsule, which is broad, egg-shaped, blunt-pointed. The crests of the seeds are curved, terminal. The plant is 6-12 in. high, flowering in May and June, and is a herbaceous perennial.
The habitat of this species is thickets, woods, and shaded places. The habit is as in the last. It is more slender than the last. The leaves are linear, hairy. The flower-stalk is i-flowered, erect in flower and fruit, the flowers in a panicle with few branches. The stamens are as long as the style, the anther-stalks as long as the anthers. The capsule is acute, 3-angled, not narrowed below. The seeds have a short, terminal, straight, blunt crest. The plant is 6-12 in. high, flowering in March to June, and is a herbaceous perennial.