Opercularia (plant) explained

Opercularia is a genus of perennial and subshrub flowering plants in the family Rubiaceae. There are about 15 species, all of which are endemic to Australia. Many of the species have an unpleasant odour.

Species include:^[1]

• Opercularia acolytantha
• Opercularia apiciflora
• Opercularia aspera – coarse stinkweed^[2]
• Opercularia diphylla
• Opercularia echinocephala – bristly-headed stinkweed
• Opercularia hirsuta – silky-haired stinkweed
• Opercularia hispidula – hairy stinkweed, hispid stinkweed
• Opercularia liberiflora
• Opercularia ovata
• Opercularia rubioides
• Opercularia scabrida
• Opercularia spermacocea
• Opercularia vaginata – dog weed
• Opercularia varia – variable stinkweed^[2]
• Opercularia volubilis – twining stinkweed

Notes and References

1. Web site: Opercularia . Australian Plant Name Index (APNI), IBIS database. Centre for Plant Biodiversity Research, Australian Government, Canberra. 2009-09-26.
2. Web site: Genus Opercularia . 2009-07-26 . PlantNET – New South Wales Flora Online . Royal Botanic Gardens & Domain Trust, Sydney Australia.