Crocus ochroleucus

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Crocus ochroleucus
Crocus ochroleucus

Crocus ochroleucus

Systematics
Class : Bedecktsamer (Magnoliopsida)
Monocots
Order : Asparagales (Asparagales)
Family : Iris family (Iridaceae)
Genre : Crocuses ( crocus )
Type : Crocus ochroleucus
Scientific name
Crocus ochroleucus
Boiss. & Gaill.

Crocus ochroleucus is a plant from the genus of crocus ( Crocus ) within the family of the Iridaceae (Iridaceae).

description

Vegetative characteristics

Crocus ochroleucus grows as a perennial herbaceous plant and reaches heights of up to 12 centimeters, but remains, depending on the location, usually significantly smaller. The tuber is about 1.5 centimeters tall, quite flat and surrounded by a brown shell. The narrow, parallel-veined, grass-green leaves with the white central stripe typical of crocuses are initially still upright and later in winter are almost on the ground.

Generative characteristics

The flowering time is in September or October. The hermaphrodite flowers are radial symmetry and threefold. There are two circles with the same looking bracts . They are creamy white with a fuzzy, yolk-yellow throat that becomes lighter and lighter towards the bottom and merges into the dirty-white-colored corolla tube . There is only one circle with three stamens . The anthers are first dark and then white from the pollen . The ovary is located underground. There are three branches of the style .

A capsule fruit is developed.

The number of chromosomes is 2n = 10.

ecology

In Crocus ochroleucus is a geophytes . In autumn, leaves and flowers are formed from the underground tuber at about the same time and the storage materials are withdrawn again in spring.

The ovary is located underground and, after successful fertilization, develops into a capsule fruit that pushes over the earth in spring or late winter.

Occurrence

Crocus ochroleucus is common in the Middle East , more precisely in Syria , Israel and Lebanon . There Crocus ochroleucus thrives mainly in rocky, hilly landscapes.

Systematics

The first description of Crocus ochroleucus was made in 1859 by Pierre Edmond Boissier and Charles Gaillardot in Diagnoses Plantarum Novarum Orientalium. Lipsiae. Series 2, 4, page 93.

The species Crocus ochroleucus belongs to the Kotschyani series from the Crocus section in the subgenus Crocus within the genus Crocus .

use

Crocus ochroleucus is sometimes grown as an ornamental plant. The plant prefers sunny locations on dry to fresh soils and, since the tubers are sometimes quite deep, is quite hardy despite the southern distribution area (up to USDA zone 7a) and can be used in German-speaking countries, apart from the Alps, south-east and central Germany, Central Austria and higher low mountain ranges survive the winter everywhere.

Individual evidence

  1. a b Susanne Vogel: bulbs and tubers: [with more than 500 plants] . Ed .: Royal Horticultural Society. Dorling Kindersley, Starnberg 2005, ISBN 3-8310-0718-7 (OLCL: 76624009 [accessed July 29, 2019]).
  2. a b c d Pacific Bulb Society | Fall Blooming Crocus Two. Retrieved July 29, 2019 .
  3. Crocus ochroleucus at Tropicos.org. In: IPCN Chromosome Reports . Missouri Botanical Garden, St. Louis
  4. Crocus ochroleucus at Tropicos.org. Missouri Botanical Garden, St. Louis, accessed July 30, 2019.
  5. ^ Tropenland.at - grow exotic plants yourself. Retrieved August 20, 2019 .

Web links

Commons : Crocus ochroleucus  - Collection of images, videos and audio files