Garden escapee. Mats of this species smother other ground vegetation and prevent growth of shrubs and trees. Grows best in fertile soil and well in shade.
- Family Apocynaceae
- Origin Central and southern Europe and northern Africa
- Habit Spreading perennial herb to 50cm high with stems that root at nodes and sometimes at tips Lacks milky latex that is common with its family.
- Leaves Opposite, ovate, 1.5-9cm long, 1.5-4.5cm wide, glossy green above, paler below; on leaf stalk 0.5-1.5cm long
- Flowers Violet-blue to mauve, 3-6cm wide, tubular with 5 spreading lobes 1.3-2.5cm long, stamens attached to inside of tube and within tube. Flowers mostly late Winter to late Summer.
- Fruit Produced in pairs joined at the base, membranous, cylindrical 3.5-5cm long, about 0.4cm wide. Seeds flat, hairless, 7-8mm long, 1-10 per fruit.
- Roots Fibrous. Stems root at nodes and sometimes at tips.
- Dispersal Seed is apparently rarely produced in Australia. Mainly spread by humans via garden refuse dumping.
- Control Hand Dig, bagging all plant parts and removing from site. Foliar spray.
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