Ornithogalum
| Ornithogalum | |
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| Ornithogalum umbellatum | |
| Scientific classification | |
| Kingdom: | Plantae |
| Clade: | Angiosperms |
| Clade: | Monocots |
| Order: | Asparagales |
| Family: | Asparagaceae |
| Subfamily: | Scilloideae |
| Tribe: | Ornithogaleae |
| Genus: |
Ornithogalum L. |
| Type species | |
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Ornithogalum umbellatum |
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| Species | |
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See text. |
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| Synonyms | |
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List
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See text.
Ornithogalum is a genus of perennial plants mostly native to southern Europe and southern Africa belonging to the family Asparagaceae. Some species are native to other areas such as the Caucasus. Growing from a bulb, species have linear basal leaves and a slender stalk, up to 30 cm tall, bearing clusters of typically white star-shaped flowers, often striped with green. The common name of the genus, Star-of-Bethlehem, is based on its star-shaped flowers, after the Star of Bethlehem that appeared in the biblical account of the birth of Jesus. The number of species has varied considerably, depending on authority, from 50 to 300.
Ornithogalum species are perennial bulbous geophytes with basal leaves. Sensu lato, the genus has the characteristics of the Ornithogaleae tribe as a whole, since the tribe is monotypic in that sense. Sensu stricto, the genus is characterised by long linear to oblong-lanceolate (lance-shaped) leaves, sometimes with a white longitudinal band on the adaxial (upper) side, an inflorescence that is corymbose or pseudocorymbose, tepals that are white with a longitudinal green band only visible on the abaxial (lower) side, a capsule that is obovate or oblong, and truncate with six noticeable ribs in section and seeds that are globose with a prominently reticulate (net-like pattern) testa. The bulbs are ovoid with free or concrescent scales.
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