Comfrey-leaved rockrose
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Comfrey-leaved rockrose ( Cistus symphytifolius ) |
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The Cistus Symphytifolius ( Cistus symphytifolius ) is a plant type from the genus of cistus (Cistus) in the family of rockrose (Cistaceae).
description
The aromatic, strongly branched, evergreen shrub reaches heights of growth of 60 to 200 cm. The brownish branches break very easily. Stems, leaves and flower stalks are covered with glandular hairs. The opposite, fused to a sparse hairy sheath at the bottom leaves are stalked, with 5 to 12 cm long, ovoid-lanceolate, 2.2 to 4.4 times as long as broad leaf blade. The ribs protrude strongly on the underside of the leaf, which makes the leaf appear wrinkled. The texture is rough and sticky. Glandular hairs appear on the underside of the leaf only on these ribs.
The pink flowers reach a diameter of up to 6 centimeters. The pen is twice as long as the numerous bright yellow stamens . The inner sepals have a tip 5 to 6 mm long and are much larger than the outer sepals. The five-column capsule fruit is dark brown, puffed up and hairy only on the nerves. It produces more than 200 seeds that are dark gray.
Flowering time is from February to July.
Systematics
The scientific name Cistus symphytifolius was first described by Jean-Baptiste de Lamarck in 1786 . Important synonyms are Cistus vaginatus Dryand. and Rhodocistus berthelotianus Spach , nom. illegal.
The comfrey-leaved rockrose is divided into three varieties:
- Cistus symphytifolius var. Symphytifolius : It differs by its dark green leaf blades with little network nerve on the upper side, which are richly covered with glandular hairs and sparsely with star hairs, which are 250 µm in diameter. The leaf sheaths are 10 to 14 mm long. The nominative clan is common on the north side of Tenerife and La Palma.
- Cistus symphytifolius var. Canus Demoly : It differs from var. Symphytifolius by its gray-green leaf blades with a strong network of nerves on the upper side, which are sparsely covered with glandular hairs and densely with star hairs, which are 500 µm in diameter. The leaf sheaths are short at 9 to 11 mm. This variety occurs on the south side of La Palma.
- Cistus symphytifolius var. Villosus Demoly : It differs from var. Symphytifolius by their simple hair tightly covered top of the leaf blade and the much less numerous glandular hairs on the Spreitenunterseite. This variety occurs on the south side of Tenerife.
Cistus symphytifolius var. Leucophyllus (Spach) Dans. is a synonym of Cistus ocreatus .
Occurrence
The comfrey rockrose is endemic to the Canary Islands of Tenerife and La Palma . The rock roses from Gran Canaria, El Hierro and La Gomera have been separated as related species.
It grows in the undergrowth of high-lying Canary Island pine forests , but also in Canary Island dwarf shrub heaths (with Chamaecytisus proliferus or Erica arborea ) in the transition to the Canary Island pine forest.
The comfrey rockrose is not considered endangered (LC = "Least Concern").
literature
- Ingrid Schönfelder, Peter Schönfelder : Kosmos Atlas Mediterranean and Canary Islands flora. Over 1600 species of plants . 2nd Edition. Franckh-Kosmos, Stuttgart 2002, ISBN 3-440-09361-1 , pp. 126 .
- Miguel Ángel Cabrera Pérez: The native flora of the Canary Islands , Everest, León 1999, ISBN 84-241-3550-4 , p. 143.
- Adalbert Hohenester, Walter Welss: Excursion flora for the Canary Islands. With views of the whole of Macaronesia . Eugen Ulmer, Stuttgart (Hohenheim) 1993, ISBN 3-8001-3466-7 , pp. 164 ( PDF file; 23.2 MB ).
Individual evidence
- ↑ a b c d Peter Schönfelder, Ingrid Schönfelder: Die Kosmos-Kanarenflora. Over 1000 species and 60 tropical ornamental trees (= Kosmos nature guide ). 3. Edition. Franckh-Kosmos, Stuttgart 2012, ISBN 978-3-440-12607-3 , p. 144 .
- ↑ a b c d e f g h i j k Jean-Pierre Demoly, Manuel V. Marrero, Ángel Bañares Baudet: Contribution à la connaissance des cistes de la section Macrostylia Willk. (Cistus L., Cistaceae). In: Journal de Botanique de la Société Botanique de France. Volume 36, 2006, pp. 13-38.
- ^ Jean-Baptiste de Lamarck: Encyclopédie Méthodique. Botanique. Tome second, Panckoucke / Plomteux, Paris / Liège 1786, p. 15 digitized .
