Seeds of South Australia
Correa backhouseana var. coriacea (Rutaceae)
Thick-leaf Correa
List of species for Correa
Click on an image to enlarge it
Seed collecting:
July to October
Herbarium regions:
Nullarbor, Eyre Peninsula, Northern Lofty, Yorke Peninsula, Southern Lofty
NRM regions:
Adelaide and Mount Lofty Ranges, Alinytjara Wilurara, Eyre Peninsula, Northern and Yorke
IBRA regions
Mount Lofty Ranges (FLB01)Flinders Lofty Block
 Endangered   (IUCN: EN B2ab(i,ii,iii))   (Probable Decline)   [localised Sandy Ck; on clay; used to be C reflexa]
Broughton (FLB02) 
 Critically Endangered   (IUCN: CR B2ab(i,ii,iii,iv))   (Definite Decline)   [grazed by sheep]
Southern Yorke (EYB01)Eyre Yorke Block
 Least Concern
St Vincent (EYB02) 
 Least Concern
Eyre Hills (EYB03) 
 Least Concern
Talia (EYB04) 
 Least Concern
Eyre Mallee (EYB05) 
 Least Concern
Gawler Volcanics (GAW02)Gawler
 Least Concern
Hampton (HAM01)Hampton
 Least Concern
RSCA map:
Regional Species Conservation Assessments per IBRA subregion. Please click the thumbnail map.
AVH map:
Australian distribution map (external link)
SA Census:
Census of South Australian plants (external link)     [genus Correa]
Name derivation:
Correa named after Jose Francisco Correa de Serra (1751-1823), a Portuguese botanist. Backhouseana name after James Backhouse (1794-1869), an English-born naturalist and Quaker missionary who collected plants in Australia including the type specimen for the species. Coriacea from the Latin 'corium' meaning leather; possibly referring to the thicker leaves of this variety.
Distribution:
Found on the Nullarbor, Eyre Peninsula, Yorke Peninsula and the Mount Lofty Ranges in South Australia, growing on dunes and granite outcrops and on the limestone escarpment. Also found in Western Australia.
Status:
Native. Common in South Australia. Uncommon in Western Australia.
Plant description:
Low to erect open or dense shrub to 1 m high, with grey-tomentose branches. Leaves leathery, ovate, to 3 cm long and 1.5 cm wide, glabrous above, subglabrous to tomentose below. Inflorescence solitary and terminal to short branchlets with cylindrical greenish or pink-red with green or yellow tips flowers. This variety differ from the other variety found in South Australia, Correa backhouseana var. orbicularis which have corolla red with yellowish tips to lobes and broadly ovate to circular leaves rather than ovate leaves. Flowering between April and August.
Fruit type:
Pale brown capsule to 8 mm long enclose by the sepals.
Embryo type:
Linear fully developed.
Seed collecting:
Collect mature capsules, those that are turning a pale straw colour and contain hard seeds, either by hands or place small breathable bags over immature capsules to collect seed. Capsules maybe hard to see as it is enclose by the green sepals.
Seed cleaning:
Place the capsules in a tray and leave to dry for a weeks. Then rub the capsules gently by hand to dislodge the seeds. Be very careful as the seed coat is thin and easily damaged. Use a sieve to separate the unwanted material. Store the seeds with a desiccant such as dried silica beads or dry rice, in an air tight container in a cool and dry place.
Seed germination:
This species has morphophysiological dormancy and can be difficult to germinate.