Correa calycina

Location & distribution maps

Phylogeny & links to associated information:

Wikipedia links:       Angiosperms  > Eudicots > Rosids >  Sapindales > Rutaceae  > Correa  calycina

Other links:    

Plant  information

Common name:                Green Correa 

• Also, Hindmarsh correa

Conservation status:  Vulnerable

• Classified as "vulnerable" under the Australian Government Environment Protection and Biodiversity Conservation Act 1999 and the South Australian Government National Parks and Wildlife Act, 1972

• The main threats to the species are competition from weeds, especially Montpelier broom (Genista monspessulana), blackberry (Rubus fruticosus) and willow (Salix) species

• It is also threatened by land clearing and grazing by livestock

Etymology:   

Flowers:                  

• Pendulous green flowers arranged singly on the ends of short side branches

• On pedicels 2–4 mm long

• The calyx is green, top-shaped, square in cross-section and up to 15 mm long with four lance-shaped lobes

• The corolla is green ageing to mauve, pendulous, narrow cylindrical, up to 30 mm long and densely covered with star-shaped hairs

• The eight stamens are much longer than the petal tube

Fruit:                         

Leaves:         

• Papery, oblong leaves 

• The leaves are narrow oblong to elliptic

• 20–30 mm long and 10–25 mm wide 

• Petiole 3–6 mm long

Stem & branches: 

Roots:         

Habit:        

• Tall, dense shrub

Habitat:   

• It usually grows on or near the banks of streams

Distribution:                  

• Endemic to a small area of South Australia

• Occurs in a few isolated places on the southern Fleurieu Peninsula and on Kangaroo Island in South Australia 

  • Variety calycina occurs on the Fleurieu Peninsula near the Hindmarsh and Inman Rivers and Carrickalinga Creek

  • Variety halmaturorum is only known from along the De Mole River on Kangaroo Island, growing in Eucalyptus cladocalyx forest

Species:                     

• Two varieties of C. calycina are accepted by the Australian Plant Census:

  • Correa calycina var. calycina, has leaves that are sparsely to moderately densely covered with star-shaped hairs on the lower surface

• Correa calycina var. halmaturorum, commonly known as the De Mole River Correa, has leaves that are densely covered with star-shaped hairs on the lower surface.; it was first formally described in 1998 by Paul Wilson in the journal Nuytsia  

Additional notes:     

• Taxonomy

  • Correa calycina was first formally described in 1925 by John McConnell Black in Transactions and Proceedings of the Royal Society of South Australia

  • From specimens collected in the Hindmarsh Valley by John Burton Cleland

Sources of information:

• https://en.wikipedia.org/wiki/Correa_calycina (2023)