Coastal bluebells
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Coastal blue of the valley ( Mertensia maritima subsp. asiatica ) |
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| Mertensia maritima | ||||||||||||
| ( L. ) Gray |
The coastal Bluebells ( Mertensia maritima ), also oyster plant called, is a type of plant kind of Bluebells ( Mertensia ) within the family of Borage Family (Boraginaceae).
description
The coastal bluebell is a perennial about 5–30 centimeters high and blue-green, bare plant with up to 60 centimeters long stems. The stems are leafy, upright or mostly prostrate and sometimes forming pillows. In the slightly fleshy leaves, the lower ones are petiolate, the upper ones are sessile. They are 0.5–6 inches long, spatulate, egg-shaped or elliptical. The bare and entire, rounded to pointed leaf blades are dotted with salt glands on top.
The terminal inflorescences are often branched and umbrella- shaped , with leaf-like bracts . The flower stalks are 2–10 millimeters long, often bent back when the fruit is ripe. The pointed calyx lobes are 6 millimeters long and egg-shaped. The longer, in the lower part narrowed corolla, inside without appendages but with invaginations in the throat, measures about 6 millimeters in diameter, it is pink, later turns blue and pink. The bell-shaped crown is divided into short, slightly curved tips in the upper part. The short stamens are enclosed and usually stand together at the tip. The style of the Upper permanent ovary is usually included.
The flowering period is June to July. There are Klaus fruits formed in / with a slightly inflated, papierigen to maturity, approximately egg-shaped envelope in resisting cup.
The number of chromosomes is 2n = 24.
Occurrence
The coastal bluebell is widespread in the northern hemisphere in northern Europe to Greenland , in Eastern Europe and from Siberia , Korea , Japan over Russia's Far East to Alaska , Canada and in the US states of Maine , Massachusetts and New Hampshire .
It thrives on the sandy coasts of Northern Europe, southward in Great Britain, Ireland up to 54 degrees north latitude (previously up to 52 degrees 30 '), but is absent in the Baltic region.
Taxonomy
The coastal blue of the valley was first described by Carl von Linné with the name Pulmonaria maritima in Sp. Pl .: 136, 1753. The species was then named Mertensia maritima in Nat. By Samuel Frederick Gray . Arr. Brit. Pl. 2: 354, 1821 placed in the genus Mertensia . A synonym for the species is Steenhammera maritima (L.) Rchb. The generic name Mertensia honors Franz Carl Mertens , a German teacher and botanist.
use
The leaves are occasionally used in the kitchen. They taste like fish or oysters, hence the name oyster plant.
Individual evidence
- ↑ a b JW Franks: Mertensia Roth. In: Thomas Gaskell Tutin u. a .: Flora Europaea. Volume 3, Cambridge University Press 1972, ISBN 0-521-08489-X , p. 109 f, limited preview in the Google book search.
- ^ Mertensia maritima at Tropicos.org. In: IPCN Chromosome Reports . Missouri Botanical Garden, St. Louis.
- ^ Mertensia in the Germplasm Resources Information Network (GRIN), USDA , ARS , National Genetic Resources Program. National Germplasm Resources Laboratory, Beltsville, Maryland. Retrieved July 25, 2020.
- ↑ Benito Valdés, 2011: Boraginaceae. : Datasheet Mertensia maritima In: Euro + Med Plantbase - the information resource for Euro-Mediterranean plant diversity .
- ↑ Lotte Burkhardt: Directory of eponymous plant names - Extended Edition. Part I and II. Botanic Garden and Botanical Museum Berlin , Freie Universität Berlin , Berlin 2018, ISBN 978-3-946292-26-5 doi: 10.3372 / epolist2018 .
Web links
- Mertensia maritima at Canadian Museum of Nature.