English sedum plant
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Sedum anglicum in a typical rocky location in Pembrokeshire |
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| Sedum anglicum | ||||||||||||
| Huds. |
The English stonecrop ( Sedum anglicum ), and English stonecrop called, is a species of the genus Sedum (Sedum) in the family of the Crassulaceae (Crassulaceae).
description
English stonecrop is a hibernating green, grass-forming perennial succulent plant that reaches heights of 5 to 10 centimeters. The bare stems have short vegetative side shoots. The alternate, bare leaves are 3 to 5 millimeters long, round to oval in cross-section, arched on top, slightly keeled underneath, elongated-lanceolate and protruding. The basic color of the leaves is blue-green, usually they are tinged with reddish to pink.
The flowering period extends from June to September. The flowers are on a branched inflorescence with typically two branches; this distinguishes Sedum anglicum from other sedum species, for example from Sedum album with several branches. The hermaphroditic flowers have a diameter of 9 to 12 millimeters and are radially symmetrical and usually five-fold with a double flower envelope. The sepals are triangular and intensely red in color. The (as a rule) five petals are pointed, sometimes with a small spike tip, and of white color, with a pinkish-red base. There are two circles with five stamens each . The anthers are dark purple to black and contrast strikingly with the rest of the flower parts.
The number of chromosomes is 2n = 44 or 160.
ecology
The English sedum plant is a Chamaephyte .
Occurrence
The natural range of English stonecrop is in the British Isles , there also inland, and in the coastal areas of Denmark , Norway and Sweden as well as along the canal and North Sea coasts of France , Belgium and Holland . It grows in rocky locations (e.g. in crevices of coastal rocks, on crowns of dry stone walls, etc.), dry grassland, dunes and pebble beaches . It usually thrives in acidic soils . It occurs from the coast to altitudes of about 1800 meters.
Taxonomy and systematics
The first description of Sedum anglicum was made in 1778 by William Hudson in Flora Anglica, Editio Altera , 1, S. 196th
One can distinguish the following subspecies:
- Sedum anglicum subsp. anglicum
- Sedum anglicum subsp. pyrenaicum (Lange) Laínz : It occurs only in Portugal , northern Spain and southern France .
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literature
- Marjorie Blamey (Ill.), Christopher Gray-Wilson (Text): Cassell's Wild Flowers of Britain & Northern Europe . Cassell, London 2003, ISBN 0-304-36214-X (English).
Individual evidence
- ^ Sedum anglicum at Tropicos.org. In: IPCN Chromosome Reports . Missouri Botanical Garden, St. Louis
- ↑ William Hudson : Flora Anglica: exhibens plantas per regnum Britanniae sponte crescentes, distributas secundum systema sexuale: cum differentiis specierum, synonymis auctorum, nominibus incolarum, solo locorum, tempore florendi, officinalibus pharmacopaeorum. Tomus 1, Editio altera, Nourse, London 1778 ( full text in the Google book search).
- ^ Sedum anglicum at Tropicos.org. Missouri Botanical Garden, St. Louis
- ↑ Karol Marhold, 2011: Crassulaceae : Datasheet Sedum anglicum In: Euro + Med Plantbase - the information resource for Euro-Mediterranean plant diversity.
Web links
- Datasheet with distribution map in the British Isles of Sedum anglicum. In: National Biodiversity Network's Gateway (NBN Gateway)
- Sedum anglicum . In: GBIF (Global Biodiversity Information Facility)
- Herbarium specimens from Sedum anglicum. In: JSTOR Global Plants .
- Sedum anglicum (CNS 2015/360). In: CNSflora .