Roepera billardierei, synonym Zygophyllum billardierei, commonly known as coast twin-leaf, is a species of plant in the family Zygophyllaceae found in temperate regions of Australia. In Tasmania, where it has only been recorded from the Furneaux Group in Bass Strait, it is listed as Rare under the state's Threatened Species Protection Act 1995.[2]
| Coast twin-leaf | |
|---|---|
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Scientific classification 
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| Kingdom: | Plantae |
| Clade: | Tracheophytes |
| Clade: | Angiosperms |
| Clade: | Eudicots |
| Clade: | Rosids |
| Order: | Zygophyllales |
| Family: | Zygophyllaceae |
| Genus: | Roepera |
| Species: | R. billardierei
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| Binomial name | |
| Roepera billardierei | |
| Synonyms[1] | |
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Description
editCoast twin-leaf is a perennial herb with stems that spread over the ground. The stems are branched and 20–40 mm long. The leaves are Y-shaped, with blunt tips, and up to 15 mm long. The flowers are yellow and about 10 mm long. The fruit is a drooping four-angled capsule about 10–12 mm long, containing brown seeds.[2] It is a scrambling plant which is found in both sheltered and exposed coastal sites where it stabilises loose sand on dunes.[3]
References
edit- ^ a b "Roepera billardierei (DC.) G.Don". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 2018-01-26.
- ^ a b "Zygophyllum billardierei" (PDF). Threatened Flora of Tasmania. Department of Primary Industries, Water and Environment, Tasmania. 2003-09-03. Retrieved 2012-05-10.
- ^ Longmore, Sue; Smithyman, Steve & Crawley, Matt (2010). Coastal Plants of the Bellarine Peninsula. Bellarine Catchment Network.
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