Romulea bulbocodium

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Romulea bulbocodium
Romulea bulbocodium.jpg

Romulea bulbocodium

Systematics
Class : Bedecktsamer (Magnoliopsida)
Monocots
Order : Asparagales (Asparagales)
Family : Iris family (Iridaceae)
Genre : Mock crocuses ( Romulea )
Type : Romulea bulbocodium
Scientific name
Romulea bulbocodium
( L. ) Sebast. & Mauri

Romulea bulbocodium ( Syn. : Ixia bulbocodium (L.) L.), such as several species of the genus in the German and sand crocus or crocus called, is a plant from the genus romulea ( Romulea ) in the family of the Iridaceae (Iridaceae).

features

Romulea bulbocodium is a perennial herbaceous plant that reaches heights of 3 to 18 centimeters. This geophyte forms tubers as persistent organs. The two to four leaves are furrowed, green, lighter on the underside and measure 15 × 0.1 to 0.2 centimeters.

The stem is one (to six) flowered. The flowers are surrounded by two bracts . The outer bract has narrow skin margins, the inner is broader and quite membranous. The perigone is (18) 25 to 35 (50) millimeters in length, the tube 3.5 to 8 millimeters and the lobes (15) 22 to 25 (40) millimeters. The perigone is elliptical, pointed and light purple in color with darker nerves. It is rarely yellow ( Romulea bulbocodium var. Croces (Boiss. Et Heldr.) Baker) or white and tinged with greenish purple on the underside ( Romulea bulbocodium var. Leichtliniana (Halácsy) Bég. ). The throat is hairy and yellow. The scar is six-pointed and protrudes over the anthers.

The flowering period extends from March to April.

The number of chromosomes is 2n = 28.

Occurrence

Romulea bulbocodium occurs in dry meadows and bushes in the Mediterranean region . In Italy it can be found at altitudes from 0 to 1200 meters.

Systematics

One can distinguish between three varieties:

  • Romulea bulbocodium var. Bulbocodium : It occurs in the Mediterranean area.
  • Romulea bulbocodium var. Crocea (Boiss. & Heldr.) Baker : It occurs from southwestern Turkey to western Syria.
  • Romulea bulbocodium var. Leichtliniana (Heldr. Ex Halácsy) Bég. : It occurs from southeast Europe to southern Turkey.

use

Romulea bulbocodium is rarely used as an ornamental plant in rock gardens in areas with a viticulture climate . It is considered a plant for lovers and has been in cultivation since 1720 at the latest.

literature

  • Eckehart J. Jäger, Friedrich Ebel, Peter Hanelt, Gerd K. Müller (eds.): Rothmaler excursion flora from Germany. Volume 5: Herbaceous ornamental and useful plants . Spectrum Academic Publishing House, Berlin Heidelberg 2008, ISBN 978-3-8274-0918-8 .

Individual evidence

  1. ^ Tropicos. [1]
  2. ↑ a b c d Rafaël Govaerts (Ed.): Romulea bulbocodium. In: World Checklist of Selected Plant Families (WCSP) - The Board of Trustees of the Royal Botanic Gardens, Kew . Retrieved October 3, 2016.

Web links

Commons : Romulea bulbocodium  - album with pictures, videos and audio files