Seeds of South Australia
Brachychiton gregorii (Sterculiaceae)
Desert Kurrajong
List of species for Brachychiton
Click on an image to enlarge it
Seed collecting:
December to March
Herbarium region:
North Western
NRM region:
Alinytjara Wilurara
IBRA regions
Maralinga (GVD03)Great Victoria Desert
 Rare   (IUCN: RA d(i,ii))   [southern limit]
Kintore (GVD04) 
 Near Threatened
Mann-Musgrave Block (CER01)Central Ranges
 Near Threatened
Watarru (CER02) 
 Near Threatened
Everard Block (CER03) 
 Data Deficient   [1 record, highly unlikely]
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 Brachychiton]
Name derivation:

Brachychiton from the Greek 'brachys' meaning short and 'chiton' meaning an outer garment; alluding to the loose outer covering of the seed. Gregorii named after Sir Augustus Charles Gregory (1819-1905), an English-born Australian explorer and surveyor-general.

Distribution:
Found in the north-west corner of South Australia, growing on sand in sand  dunes, rocky ridges & slopes. Also found in Western Australia and the Northern Territory.
Status:
Native. Uncommon in South Australia. Common in the other states.
Plant description:
Tall erect tree to 10 m high with evergreen leaves which are shed during dry periods. Leaves to 20 cm long with 3- or 5-lobed, on stalk to 14 cm long. Inflorescences in panicles with pale-yellow bell-shaped flowers with a reddish margins. Flowering between October and December.
Fruit type:
Large black pod to 5 cm long, with numerous seeds.
Seed collecting:
Pods can be collected prior to splitting as long as the seeds inside are hard.
Seed cleaning:
Place the pods in a tray and leave to dry until the pods open. Use your hand to dislodge the seeds from the pods. Use a sieve to rub the fruits and to separate the unwanted material. Store the seeds with a dessicant such as dried silica beads or dry rice in an air tight container in a cool and dry place.
Seed germination:
These seeds have physical dormancy and can be germinated after pre-treatment such as scarification, nicking or hot water. The pre-treatments remove/breach the physical barrier for moisture uptake.