Oxypetalum coeruleum
Common name
Tweedia, Blue milkweed, Star of the Argentine, Southern star
Synonyms
Tweedia caerulea Oxypetalum caeruleum
Family
Apocynaceae
Flora category
Vascular – Exotic
Structural class
Lianes & Related Trailing Plants - Dicotyledons
Conservation status
Not applicable
Brief description
Scrambling or twining herbaceous to somewhat woody perennial with soft downy leaves and turquoise-blue flowers. Milky sap when broken, may be irritating to skin.
Similar taxa
Vegetatively resembles moth vine (Araujia sericifera) but the blue flowers immediately distinguish it.
Flower colours
Blue
Year naturalised
1988
Origin
Southern Brazil, Uruguay
Reason for introduction
Ornamental
Taxonomic notes
Previously in Asclepiadaceae.