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habit (Photo: Rob and Fiona Richardson)
close-up of hairy stem and paired leaves (Photo: Rob and Fiona Richardson)
flowers (Photo: Jackie Miles and Max Campbell)
close-up of flower (Photo: Rob and Fiona Richardson)
Scientific Name
Oxypetalum coeruleum (D. Don) Decne.
Synonyms
Oxypetalum caeruleum (D. Don) Decne.Tweedia caerulea D. DonTweedia coerulea D. DonTweedia versicolor Hook.
Family
Asclepiadaceae (Victoria, the ACT, Tasmania, South Australia, Western Australia and the Northern Territory)Apocynaceae (Queensland and New South Wales)
Common Names
blue flowered milkweed, blue milkweed, milkweed, silkpods, southern star, star flower, tweedia
Origin
Native to South America (i.e. Brazil and Uruguay).
Naturalised Distribution
Naturalised is some parts of eastern Australia (i.e. occasionally in south-eastern Queensland, widely naturalised in eastern New South Wales, and sparingly naturalised in Victoria).
Notes
Tweedia (Oxypetalum coeruleum) is listed as a priority environmental weed in at least one Natural Resource Management region.