Seeds of South Australia
Dodonaea hexandra (Sapindaceae)
Horned Hop-bush
List of species for Dodonaea
Display more images
Click on an image to enlarge it
Seed collecting:
September to December
Herbarium regions:
Eyre Peninsula, Northern Lofty, Yorke Peninsula, Southern Lofty, Kangaroo Island, South Eastern
NRM regions:
Adelaide and Mount Lofty Ranges, Eyre Peninsula, Kangaroo Island, Northern and Yorke, South East
IBRA regions
SUMMARY
Tintinara (NCP04)Naracoorte Coastal Plain
 Least Concern
Kangaroo Island (KAN01)Kanmantoo
 Near Threatened
Fleurieu (KAN02) 
 Rare   (IUCN: RA d(ii))
Mount Lofty Ranges (FLB01)Flinders Lofty Block
 Vulnerable   (IUCN: VU B2ab(i,ii,iii); D2)   (Probable Decline)   [urbanisation & disturbed habitat - threats]
Broughton (FLB02) 
 Vulnerable   (IUCN: VU D1+2)
Southern Yorke (EYB01)Eyre Yorke Block
 Least Concern
St Vincent (EYB02) 
 Rare   (IUCN: RA d(ii))   (Probable Decline)   [mallee, clay]
Eyre Hills (EYB03) 
 Least Concern
Talia (EYB04) 
 Least Concern
Eyre Mallee (EYB05) 
 Least Concern
Murray Mallee (MDD02)Murray Darling Depression
 Least Concern
Murray Lakes and Coorong (MDD03) 
 Rare   (IUCN: RA d(i,ii))   (Probable Decline)   [edge of range]
Lowan Mallee (MDD04) 
 Least Concern
Myall Plains (GAW01)Gawler
 Rare   (IUCN: RA d(i,ii))   [edge of range]
Gawler Volcanics (GAW02) 
 Least Concern
IBRA regions
DISPLAY ALL
Tintinara (NCP04)Naracoorte Coastal PlainLeast Concern
2 of 2 subregionsKanmantooNear Threatened
, Rare
2 of 6 subregionsFlinders Lofty BlockVulnerable
5 of 5 subregionsEyre Yorke BlockLeast Concern
, Rare
3 of 6 subregionsMurray Darling DepressionLeast Concern
, Rare
2 of 8 subregionsGawlerLeast Concern
, Rare
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 Dodonaea]
Name derivation:
Dodonaea named after Rembert Dodoens (1517-1585), a Flemish physician and botanist, also known under his Latinized name Rembertus Dodonaeus. Hexandra from the Greek 'hex' meaning six and 'andros' meaning male; referring to the species having six stamens.
Distribution:
Found in the southern part of South Australia, except the South-east, growing in mallee scrub communities dominated by tree species on alkaline soils and on sandy loams overlying limestone. Also found in Western Australia and Victoria.
Status:
Native. Common in South Australia. Very rare in Western Australia. Rare in Victoria.
Plant description:
Dioecious spreading shrub to 0.6 m high. Leaves simple, sessile, linear, channelled below, convex above, acute, to 1.5 cm long and 0.2 cm wide, viscous, with raised glands, glabrous, margin entire and strongly revolute. Flowers solitary or rarely 2 together, axillary or terminal with small yellow-green flowers, sepals 3 and stamens 6. Flowering between May and July. 
Fruit type:
Red-brown balloon-like capsule with 3-angled to 7 mm long and 8 mm wide, glabrous.
Seed type:
Black globular seed to 2 mm long and 2 mm wide with a large aril.
Embryo type:
Folded.
Seed collecting:
Collect capsules that contain hard black seeds, usually when capsule is turning red or brown.
Seed cleaning:
Place capsules in a tray and leave to dry for 1 to 2 weeks. Then rub the capsules by hand to dislodge the seeds. 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 viability:
From one collection, the seed viability was high, at 90%.
Seed germination:
This species has physiological dormancy that needs to be overcome for the seed to germinate (e.g. nicking the seed coat).
Seeds stored:
LocationNo. of seeds
(weight grams)
Number
of plants
Date
collected
Collection number
Collection location
Date
stored
% ViabilityStorage
temperature
BGA 
MSB
15800 (47.65 g)
15800 (47.65 g)
29-Nov-2005DJD255
Murray
8-Aug-200690%-18°C
Location: BGA — the seeds are stored at the Adelaide Botanic Gardens, MSB — the seeds are stored at the Millennium Seed Bank, Kew, England.
Number of plants: This is the number of plants from which the seeds were collected.
Collection location: The Herbarium of South Australia's region name.
% Viability: Percentage of filled healthy seeds determined by a cut test or x-ray.