Straw-yellow orchid

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Straw-yellow orchid
Straw-yellow orchid (Dactylorhiza ochroleuca)

Straw-yellow orchid ( Dactylorhiza ochroleuca )

Systematics
Family : Orchids (orchidaceae)
Subfamily : Orchidoideae
Tribe : Orchideae
Sub tribus : Orchidinae
Genre : Orchids ( Dactylorhiza )
Type : Straw-yellow orchid
Scientific name
Dactylorhiza ochroleuca
( Wüstnei ex Boll ) Holub

The straw-yellow orchid ( Dactylorhiza ochroleuca ) belongs to the genus orchids ( Dactylorhiza ) in the family of orchids (Orchidaceae). The taxonomic rank is controversial. Some botanists call the plant a subspecies Dactylorhiza incarnata subsp. ochroleuca of flesh-colored boy herb considered.

description

Flower detail, clearly recognizable the darker color at the base of the lips

The straw-yellow orchid is a perennial herbaceous plant that reaches heights of 20 to 60 centimeters. The leaves are mostly towering, less often bent back, lanceolate , light green and always unspotted. The dense inflorescence with up to 80 flowers is up to 20 cm long. The bracts are longer than the flowers. The flowers are without a pattern, whitish yellow with a slightly darker yellow to greenish discoloration at the base of the lip ( labellum ). The lateral sepals (sepals) are erect sideways. The petals incline to form a helmet.

The flowering period is between May and July.

The number of chromosomes is 2n = 40.

Distribution and occurrence

The plant is widespread in Europe from England to Ukraine . In Russia, for example, in the southern Urals . It occurs in Great Britain, Ireland, Sweden, France, Germany, Switzerland, Austria and the Baltic States. It is rare and grows in wet meadows and flat moors with basic soils. According to Baumann and Künkele, this subspecies has the following altitude limits in the Alpine countries: Germany 38–850 meters, France 450–570 meters, Switzerland 380–540 meters, Liechtenstein 440–490 meters, Austria 180–500 meters. In Europe it rises from 2 to 850 meters.

Habitus, here in a flat limestone bog in Lithuania

Taxonomy

Dactylorhiza incarnata subsp. ochroleuca (Wüstnei ex Boll) PFHunt & Summerh. has the synonyms: Dactylorhiza ochroleuca (Wüstnei ex Boll) Holub , Orchis incarnata subsp. ochroleuca (Wüstnei ex Boll) O.Schwarz , Orchis incarnata var. ochroleuca Wüstnei ex Boll , Orchis incarnata var. straminea Rchb.f.

literature

  • Zigmas Gudžinskas, Mindaugas Ryla. Lietuvos Gegužraibiniai ( Orchidaceae ) . Vilnius 2006: Botanikos Institutas. ISBN 9986-662-28-1 .

Individual evidence

  1. ^ Erich Oberdorfer : Plant-sociological excursion flora for Germany and neighboring areas . With the collaboration of Angelika Schwabe and Theo Müller. 8th, heavily revised and expanded edition. Eugen Ulmer, Stuttgart (Hohenheim) 2001, ISBN 3-8001-3131-5 , pp.  282 .
  2. ↑ Dactylorhiza ochroleuca at Tropicos.org. In: IPCN Chromosome Reports . Missouri Botanical Garden, St. Louis
  3. ↑ Rafaël Govaerts (ed.): Dactylorhiza ochroleuca. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved November 29, 2016.
  4. ↑ a b Helmut Baumann , Siegfried Künkele : Orchidaceae . In: Oskar Sebald u. a .: The fern and flowering plants of Baden-Württemberg . 1st edition Volume 8, page 363. Verlag Eugen Ulmer, Stuttgart 1998. ISBN 3-8001-3359-8

Web links

Commons : Straw orchid ( Dactylorhiza ochroleuca )  - album with pictures, videos and audio files