Crocus flavus, known as yellow crocus,[3]Dutch yellow crocus or snow crocus,[4] is a species of flowering plant in the genusCrocus of the family Iridaceae. It grows wild on the slopes of Greece, former Yugoslavia, Bulgaria, Romania and northwestern Turkey,[1] with fragrant bright orange-yellow flowers. It is a small crocus (5–6 cm (2–2 in), despite the names of some cultivars, compared to the giant Dutch crocuses (C. vernus). Its cultivars are used as ornamental plants.
Crocus flavus is a herbaceousperennialgeophyte growing from a corm. The globe shaped corms are relatively large for a crocus species, and the tunics have parallel fibers.[6] The chromosome count is 2N=8 with 11 B-chromosomes.[7]
Crocus flavus naturalizes well in gardens, and has escaped cultivation and become naturalized in the US state of Arkansas.[9] The majority of plants grown in gardens are triploids that do not produce seeds and are propagated vegetatively.[6] The species has been hybridized with other crocus species to produce a number of other cultivars.[4]
Cultivars include Crocus flavus 'Grosser Gelber' ('Big Yellow'), with large orange-yellow flowers.[6]
Illustration from Deutschlands Flora in Abbildungen
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