Ostrich loosestrife

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Ostrich loosestrife
Lysimachia thyrsiflora kz.jpg

Ostrich loosestrife ( Lysimachia thyrsiflora )

Systematics
Asterids
Order : Heather-like (Ericales)
Family : Primrose Family (Primulaceae)
Subfamily : Myrsine family (Myrsinoideae)
Genre : Loosestrife ( Lysimachia )
Type : Ostrich loosestrife
Scientific name
Lysimachia thyrsiflora
L.

The Straußblütige Gilbweiderich ( Lysimachia thyrsiflora ), also Strauss Gilbweiderich called, is a plant from the genus Gilbweiderich ( Lysimachia ) in the subfamily of Myrsinengewächse (Myrsinoideae) within the family of the Primrose (Primulaceae). It occurs in large parts of the boreal and temperate zones of the northern hemisphere .

description

Appearance and leaf

The bouquet-flowered loosestrife grows as an upright and unbranched, perennial herbaceous plant that reaches heights of 30 to 80 centimeters. The stems have black and glandular points. Their base is hairless while the upper part of the stem is hairy. The strong rhizomes grow horizontally and no daughter tubers are formed.

The opposite, approximately opposite or whorled arranged on the stems leaves are divided in leaf sheath and blade and are mostly sessile, can seldom but also a long 0.1 to 0.4 centimeters, have smooth petiole. The lowest leaves are receded and scale-like. The simple leaf blades are 5 to 16 centimeters long and 0.5 to 6 centimeters wide, lanceolate, linear-lanceolate and elliptical-lanceolate to elliptical. The lower part of the leaf blade tapers towards the wedge-shaped, rounded or half-clasping base. The leaf tip is pointed, pointed or blunt. The smooth edges of the spread are entire. Both surfaces of the leaf blade, with the exception of the sparsely hairy midrib on the underside of the blade, are glabrous and have some black, glandular points.

inflorescence

Inflorescence, flower and fruit

The flowering period extends from spring to summer, depending on the location and distribution area. The axillary axillary stem is 0.1 to 0.4 centimeters long, smooth or with sparsely hairy glands. The dense, heady to spiked , racemose inflorescence is 1 to 3 centimeters in size. The flower stalk is 1 to 3 millimeters long, smooth or sparsely hairy.

The hermaphroditic flowers are radially symmetrical and five to seven, rarely up to nine, with a double flower envelope . The hairless sepals are 1 to 3.5 millimeters long and are criss-crossed by dark resin canals. The usually six or seven lanceolate to linear-lanceolate corolla lobes have thin edges that almost reach the base of the sepals. The light yellow to cream-colored petals are 3 to 7 millimeters long and 0.5 to 1 millimeters wide and are briefly fused together at their base like a funnel. They are criss-crossed with black to reddish-brown resin channels. The six or seven corolla lobes are linear with a rounded or pointed upper end and entire margins. The stamens may be absent or become about as long or slightly longer than the petals. The nearly free-standing stamens are fused with the base of the petals, are 4 to 5 millimeters long, but can also be about twice as long as the petals. The elongated anthers are dorsifix and about 1 millimeter long. The ovary is hairy sparse and the stylus is 4.5 to 6 millimeters.

The capsule fruits are approximately spherical with a diameter of 2 to 3 millimeters. Their surface is bare and has dark spots.

Chromosome number

Four different chromosome numbers are given in the literature for the ostrich-flowered loosestrife . In addition to 2n = 20, there are also 2n = 40, 2n = 42 and 2n = 54.

Occurrence and endangerment

The natural range of the ostrich loosestrife includes large parts of the boreal and temperate zones of the northern hemisphere.

The ostrich loosestrife occurs at altitudes from 0 to 2000 meters, depending on its location and distribution area. It grows mainly in swamps and moors, on damp meadows and in damp forests. In Central Europe it is an association character of the Magnocaricion, but also occurs in societies of the Alnion or Salicion cinereae. In Germany, the ostrich loosestrife is classified as "endangered".

ecology

The ostrich loosestrife is a frost germer.

Taxonomy

The first publication of Lysimachia thyrsiflora was carried out in 1753 by Linnaeus in Species Plantarum , Volume 1, page 147. Synonyms for Lysimachia thyrsiflora L. are Lysimachusa thyrsiflora (L.) Pohl , Naumburgia thyrsiflora (L.) Duby , Naumburgia thyrsiflora (L.) Rchb. and Nummularia thyrsiflora (L.) Kuntze .

Individual evidence

  1. ↑ a b Bouquet-flowered loosestrife. In: FloraWeb.de.
  2. ↑ a b c d e f g h Anita F. Cholewa, John J. Pipoly III, Jon M. Ricketson: Myrsinaceae. Lysimachia . In: Flora of North America Editorial Committee (Ed.): Flora of North America North of Mexico . tape 8 : Paeoniaceae to Ericaceae . Oxford University Press, New York a. a. 2009, ISBN 978-0-19-534026-6 , Lysimachia thyrsiflora , p. 317 (English, efloras.org - this work is online with the same text).
  3. ↑ a b c d e f g h Qiming Hu, Sylvia Kelso: Primulaceae. Lysimachia . In: Wu Zhengyi, Peter H. Raven, Hong Deyuan (eds.): Flora of China . tape 15 : Myrsinaceae through Loganiaceae . Science Press and Missouri Botanical Garden Press, Beijing / St. Louis 2010, Lysimachia thyrsiflora , p. 78 (English, efloras.org - this printed work is online with the same text).
  4. ↑ Lysimachia thyrsiflora in the Germplasm Resources Information Network (GRIN), USDA , ARS , National Genetic Resources Program. National Germplasm Resources Laboratory, Beltsville, Maryland.
  5. ↑ a b 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.  742-743 .
  6. ↑ Lysimachia thyrsiflora at Tropicos.org. Missouri Botanical Garden, St. Louis, accessed May 15, 2015.

literature

  • Bertram Münker: Wildflowers of Central Europe (= Steinbach's natural guide ). New, edit. Special edition. Mosaik, Munich 1996, ISBN 3-576-10563-8 .

Web links

Commons : Ostrich loosestrife ( Lysimachia thyrsiflora )  - album with pictures, videos and audio files