Scheuchzeria

From Infogalactic: the planetary knowledge core
(Redirected from Scheuchzeria palustris)
Jump to: navigation, search
Scheuchzeria palustris
File:Scheuchzeria palustris - flowering.jpg
Scheuchzeria palustris - flowering
Scientific classification
Kingdom:
(unranked):
(unranked):
Order:
Family:
Scheuchzeriaceae

Genus:
Scheuchzeria

Species:
S. palustris
Binomial name
Scheuchzeria palustris

Lua error in Module:Taxonbar/candidate at line 22: attempt to index field 'wikibase' (a nil value).

Scheuchzeria palustris (Rannoch-rush,[2] or pod grass), is a flowering plant, the only species in the genus Scheuchzeria, itself the only genus in the family Scheuchzeriaceae. In the APG II system this is placed in the order Alismatales of the monocots.[3]

Description

It is a herbaceous perennial plant, native to cool temperate regions of the Northern Hemisphere, where it grows in wet Sphagnum peat bogs. It grows to 10–40 cm tall, with narrow linear leaves alternating up the stem, with a basal sheath. The leaves can be up to 20 cm. The leaf tips are blunt with a conspicuous pore.[4]

It has a creeping rhizome clothed in papery, straw coloured remains of old leaf bases.

The flowers are greenish-yellow, 4–6 mm diameter, with six tepals. They have an inflated sheathing base, 6 stamens and 3 carpels. It flowers from June until August[5][6][7]

There are two subspecies, not considered distinct by all authorities:[6][7][8]

  • Scheuchzeria palustris subsp. palustris. Northern and eastern Europe, northern Asia.
  • Scheuchzeria palustris subsp. americana (Fernald) Hultén. Northern North America.

Etymology

The genus is named after Johann Jakob Scheuchzer, a Swiss naturalist, and his brother, Johann Kaspar Scheuchzer.[9] The species name is from the Latin for a swamp.

The English name refers to its occurrence on Rannoch Moor in central Scotland, the first site in Great Britain the species was known from, and only one where it currently occurs; it is extinct at a few other wetland sites further south in Britain, being found in pools and west hollows of ancient undisturbed Sphagnum bogs.[10][11]

References

  1. Lua error in package.lua at line 80: module 'strict' not found.
  2. Lua error in package.lua at line 80: module 'strict' not found.
  3. L. Watson and M. J. Dallwitz (1992 onwards). The families of flowering plants: Scheuchzeriaceae
  4. Lua error in package.lua at line 80: module 'strict' not found.
  5. Flora of NW Europe: Scheuchzeria palustris
  6. 6.0 6.1 Flora of North America: Scheuchzeria palustris
  7. 7.0 7.1 Jepson Flora Project: Scheuchzeria palustris
  8. USDA Plants Profile: Scheuchzeria palustris
  9. Helmut Genaust (1983): Etymologisches Wörterbuch der botanischen Pflanzennamen, 2. Auflage. Birkhäuser Verlag - ISBN 3-7643-1399-4
  10. Joint Nature Conservation Committee Rannoch Moor
  11. Wildassociates: Scheuchzeria

External links