Trichophorum

German grass bulrush ( Trichophorum cespitosum subsp. Português)

Grass or rushes, rushes hair ( Trichophorum ), in Switzerland Ried Hair Called, are a genus within the family of the Sedge family ( Cyperaceae ).

Features

Lawn rushes are perennial, clump-forming herbaceous plants. Some species also form rhizomes. The stalks are triangular or round. The leaves are basal or nearly basal. The sheaths bear no leaf blades distally projecting sheaths can wear long spreading to 5 mm. The sheaths are not fibrous. Ligules are present.

The inflorescences are terminal and consist of a spikelet. The only Involucralblatt is scale-like, the tip is tapered or carries an awn. The spikelet consists of 3-9 spirally arranged scales, each of which carries a flower. The flowers are hermaphrodite, the perianth consists of 0-6 straight bristles, which can be up to 20 times longer than the achene. There are three stamens. The pens are straight, three-lobed, its base is subject to change. The achenes are triangular to plano- convex.

Dissemination

The genus is circumpolar spread to Circumboreal, but also occurs in the Andes and in the tropical mountains of Southeast Asia.

System

The genus was formerly Trichophorum out as a section within the genus Scirpus Baeothryon.

Worldwide ten species are known.

• Alpine grass bulrush ( Trichophorum alpinum (L. ) Pers; Syn. Scirpus hudsonianus ( Michx. ) Fern. ), Also in Central Europe
• Grass bulrush ( Trichophorum cespitosum (L.) Hartman; syn. Scirpus cespitosus L.) in Central Europe Ordinary grass rush Trichophorum cespitosum subsp. cespitosum
• German grass rush Trichophorum cespitosum subsp. anglicum ( Palla ) Hegi ( Syn: . Scirpus cespitosus subsp germanicus ( Palla ) Broddeson )

Documents

• William J. Crins: Trichophorum, in: Flora of North America, Volume 23, p 28 (online)