Calectasia cyanea
| Star of Bethlehem | |
|---|---|
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| Calectasia cyanea growing near Albany. | |
| Scientific classification | |
| Kingdom: | Plantae |
| Clade: | Angiosperms |
| Clade: | Monocots |
| Clade: | Commelinids |
| Order: | Arecales |
| Family: | Dasypogonaceae |
| Genus: | Calectasia |
| Species: | C. cyanea |
| Binomial name | |
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Calectasia cyanea R.Br. |
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Calectasia cyanea, commonly known as the star of Bethlehem or blue tinsel lily, is a plant in the family Dasypogonaceae growing as a perennial herb and is endemic to the south–west of Western Australia. Restricted to a single population in Torndirrup National Park, it is critically endangered.
In 1840, Robert Marnock described this species as:
Undoubtedly one of the most beautiful of the floral productions of the South-Western Coast of Australia. Sir William Hooker says, 'We figure it on account of its great beauty, a beauty which is scarcely altered by drying, for the form and colour of both leaves and flowers is truly of that kind called everlasting; and partly with the hope that our cultivators may be induced to import this lovely plant as an ornament to our greenhouses. Nothing can exceed the richness of the bright purple perianths and the contrasting deep orange-coloured anthers. It grows in sandy soil among shrubs.
John Lindley also remarked on the beauty of this species: "In the first place there is that most beautiful plant Calectasia cyanea, R.Br., a bush like an Adansonia, with quantities of large blue flowers with deep orange-coloured anthers; this is the handsomest Endogen in the Colony."
Calectasia cyanea is a clump forming woody perennial herb growing to a height of about 60 centimetres (20 in) and a width of 30 centimetres (10 in). Unlike some other members of the genus (such as C. grandiflora) this species lacks a rhizome, the stems have only a few short side branches and the leaves are 6.5–13.2 millimetres (0.3–0.5 in) long and 1.0–1.3 millimetres (0.04–0.05 in) wide. The six petals are dark blue, fading to white with age and the central anthers are yellow, turning orange-red with age. Flowers appear from June to October.
Calectasia cyanea is one of eleven species in the genus Calectasia. It was first described by Robert Brown in Prodromus Florae Novae Hollandiae in 1810. The specific epithet (cyanea) is from the Ancient Greek κυανοῦς (kyanós) meaning "dark blue" referring to the flower colour. Common names include blue tinsel lily and star of Bethlehem.
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