Bolboschoenus

Bolboschoenus maritimus agg. / B. laticarpus

The beach ledges ( Bolboschoenus ) are a genus of flowering plants in the family of the Sedge family ( Cyperaceae ). It contains about twelve species that spread throughout the world, predominantly occur in wetlands and often develop species-poor stands dominated.

Description

Beach ledges species are perennial, herbaceous plants. They form spurs, which are more or less thickened at the tips, some of them wearing walnut-sized tubers. The three-sided stems are leafy. The stiff upright leaves are grassy, ​​smooth and narrowed into a triangular tip.

The inflorescence is a simple or capitate contracted Spirre and surrounded by several, stalk leaf-like bracts. The 10 to 20 mm long spikes of usually contain more than five petals. The lower glumes are at least as large as the upper, brown, finely pubescent, emarginate at the tip and with a short awn. The flowers are hermaphrodite with brown, rough Perigonborsten. These are finely hairy. The pen base is not thickened. Scars and stamens are three available.

The seeded indehiscent fruit ( achene ) is curved in cross-section, either triangular, two-sided or one-sided outward.

System

The name Bolboschoenus published 1864 Paul Friedrich August Ascherson, as a section within the genus Scirpus Flora in the province of Brandenburg, 1, pp. 753 until 1905 Bolboschoenus received the rank of a genus by Eduard Palla in Hallier & Fire: A synopsis of the German and Swiss flora, third edition, p 2531st

The species of the genus Bolboschoenus were and are part of the genus of the ledges ( Scirpus ), partly also to the species of bulrushes ( Schoenoplectus ) provided. The internal system is still under discussion, depending on the author 6-15 types are distinguished, thereby preparing all Bolboschoenus maritimus and Bolboschoenus fluviatilis difficulties because they probably represent complexes.

Etymology

The genus name comes from the Greek Bolboschoenus of bólbos = onion and schoinos = bulrush. It is thus referred to the bins shape and partial onion-like thickening of the foothills tips.

Species and their distribution

There are about twelve Bolboschoenus types:

  • Bolboschoenus affinis ( Roth) Drobow: widespread in Eurasia
  • Bolboschoenus caldwellii ( V.J.Cook ) Sojak; Australia, New Zealand
  • Bolboschoenus capensis ( Burm. f ) Holub; Cape Province
  • Bolboschoenus fluviatilis ( Torrey ) Soják; Russia, Middle east to Indochina, North America to Mexico
  • Blue-gray beach ledges ( Bolboschoenus glaucus ( Lam.) SGSmith ); Senegal, South Africa, Eastern Europe, introduced to Pakistan, America and the freight station Ulm
  • Breitfrüchtige beach ledges ( Bolboschoenus laticarpus Marhold et al. ); Europe ( in Germany off the coasts probably the most common beach ledges )
  • Ordinary beach ledges ( Bolboschoenus maritimus (L.) Palla ): It is distributed in temperate to subtropical regions worldwide; mainly in coastal
  • Bolboschoenus median ( V.J.Cook ) Sojak; Southeast Australia, New Zealand
  • Bolboschoenus nobilis ( Ridl. ) Goetgh. & D.A.Simpson; Angola to Namibia
  • Flachfrüchtige beach ledges ( Bolboschoenus planiculmis ( F.Schmidt ) TVEgorova ): from Central Europe spread to Asia
  • Bolboschoenus robustus ( Pursh ) Soják; United States to Mexico, Caribbean Islands to the tropical Americas
  • Bolboschoenus Stagnicola ( Raymond ) Soják; Pakistan
  • Misunderstood beach ledges ( Bolboschoenus Yagara ( Ohwi ) YCYang & M.Zhan ): widespread in Eurasia

Swell

  • S. Galen Smith: Bolboschoenus in the Flora of North America, Volume 23, 2002, p 37: Online. ( Description section )
  • Prof. Song - Yun Liang, Gordon C. Tucker & David A. Simpson: Bolboschoenus in the Flora of China, Volume 23, 2010, p 179: Online. (Section Description and systematics)
Perennial plant Tepal Stigma (botany)
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