Salt marsh red fescue
| Salt marsh red fescue | ||||||||||||
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| Festuca salina | ||||||||||||
| Natho & Stohr |
The salt marsh red fescue ( Festuca salina , syn .: Festuca rubra subsp. Litoralis ), also called salt red fescue , is a sweet grass (Poaceae) and belongs to the red fescue group ( Festuca rubra agg.).
description
The salt marsh red fescue is a perennial hemicryptophyte that reaches heights of between 10 and 55 centimeters. The grass forms mat-like lawns with tightly packed shoots over short and thin, purple or brown colored rhizomes . The stalks have one to two black-purple knots in the lower quarter or third. The outer lower leaf sheaths are smooth and closed. The lower leaves are thin, dark green, bristle-shaped, slightly curved and keeled. The leaf blades are between 0.4 and 1.05 millimeters in diameter. The renewal rungs are folded. The ribs on the upper side of the leaves have at most weakly developed sclerenchyma bundles and are hairless.
The straight and upright panicles are contracted, dense and colored green or purple. They often have fewer than twelve spikelets . These are sometimes reduced to two or three. The elongated, hairless spikelets are between 8.7 and 11.2 millimeters long. They are three to nine flowered. The lower elongated-lanceolate, pointed lemmas are 6 to 7.5 millimeters long. They are mostly awnless. The lower glume reaches between 3 and 5 millimeters in length, the upper between 4 and 7.5 millimeters.
Occurrence
The grass grows on muddy flood sediments of the coastal salt marshes in beach grass groups (Armerion maritimae Br.-Bl. et De Leeuw 1936) in association with beach salt swaths ( Puccinellia maritima ), purslane wedge marmosets ( Halimione portulacoides ) and beach trident ( Triglochin maritima ).
literature
- Henning Haeupler , Thomas Muer: picture atlas of the fern and flowering plants of Germany (= the fern and flowering plants of Germany. Volume 2). Published by the Federal Agency for Nature Conservation. Ulmer, Stuttgart 2000, ISBN 3-8001-3364-4 , pp. 663-667.
- Jürgen Dengler: Standard list of narrow-leaved fescue families (Festuca ovina agg. And F. rubra agg.) In Germany , version of March 6, 2000 PDF
- CE Hubbart: grasses - description, distribution, use. Ulmer Verlag, Stuttgart 1985. ISBN 3-8001-2537-4 .