Seeds of South Australia
Crotalaria cunninghamii ssp. sturtii (Leguminosae)
Green Bird-flower
List of species for Crotalaria
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Seed collecting:
August to November
Herbarium regions:
North Western, Lake Eyre, Gairdner-Torrens, Eyre Peninsula
NRM regions:
Alinytjara Wilurara, Eyre Peninsula, South Australian Arid Lands
IBRA regions
SUMMARY
Torrens (GAW06)Gawler
 Rare   (IUCN: RA d(ii))
Kintore (GVD04)Great Victoria Desert
 Rare   (IUCN: RA d(ii))   [(no records) edge of range]
Tallaringa (GVD05) 
 Rare   (IUCN: RA d(i,ii))   [edge of range]
Simpson Desert (SSD02)Simpson Strzelecki Dunefields
 Least Concern
Dieri (SSD03) 
 Least Concern
Warriner (SSD04) 
 Near Threatened   [more records under C cunninghamii]
Strzelecki Desert (SSD05) 
 Least Concern
Peake-Dennison Inlier (STP04)Stony Plains
 Least Concern   [(no records) records are under C cunninghamii]
Macumba (STP05) 
 Least Concern   [more records under C cunninghamii]
Witjira (STP06) 
 Least Concern   [more records under C cunninghamii]
Baltana (STP07) 
 Least Concern   [more records under C cunninghamii]
Sturt Stony Desert (CHC02)Channel Country
 Least Concern
Diamantina-Eyre (CHC04) 
 Least Concern   [more records under C cunninghamii]
Coongie (CHC06) 
 Least Concern
Lake Pure (CHC07) 
 Least Concern
Mann-Musgrave Block (CER01)Central Ranges
 Rare   (IUCN: RA d(ii))   [(no records) edge of range]
Watarru (CER02) 
 Rare   (IUCN: RA d(i,ii))   [edge of range]
Pedirka (FIN04)Finke
 Rare   (IUCN: RA d(ii))   [more records under C cunninghamii]
IBRA regions
DISPLAY ALL
Torrens (GAW06)GawlerRare
  (IUCN: RA d(ii))
2 of 4 subregionsGreat Victoria DesertRare
4 of 4 subregionsSimpson Strzelecki DunefieldsLeast Concern
, Near Threatened
4 of 7 subregionsStony PlainsLeast Concern
4 of 4 subregionsChannel CountryLeast Concern
2 of 3 subregionsCentral RangesRare
Pedirka (FIN04)FinkeRare
  (IUCN: RA d(ii))   [more records under C cunninghamii]
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 Crotalaria]
Name derivation:
Crotalaria from the Greek 'crotalon' meaning a rattle, castanet; referring to the sound the dried seed pods make when shaken. Cunninghamii named after Allan Cunningham (1791-1839), an English botanist and explorer, primarily known for his travels in Australia to collect plants. Sturtii named after Captain Charles Napier Sturt (1795-1869), a British explorer of Australia, and part of the European exploration of Australia.
Distribution:
Found mainly in the north-east corner and extending to the north-west corner of South Australia, growing on sandy soils, usually sand dunes. Also found in Western Australia, Northern Territory, Queensland and New South Wales.
Status:
Native. Common in South Australia. Very rare in New South Wales. Common in the other states.
Plant description:
Erect shrub to 2 m high, branches stout, velvety, softly woody. Leaves 1-foliolate, rarely a few 3-foliolate, leaflets ovate to obovate, often broad, to 9 cm long and 6 cm wide, thick, softly- to velvety-tomentose, on velvety petioles to 3 cm long. Pea-flowers large, yellow-green with purple veins in dense clusters. Flowering between May and October.
Fruit type:
Yellow-brown narrow-obovate pod to 45 mm long and 12 mm, velvety.
Seed type:
Orange-brown reinform seed to 7 mm long and  5 mm wide with a smooth surface.
Embryo type:
Bent.
Seed collecting:
Collect mature pods, those that are fat, turning yellow-brown and contain hard seeds.
Seed cleaning:
Place the pods in a tray and leave to dry for one to two weeks. Then use a rubber bung to rub the pods or break the pods open with your fingers 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 95%.
Seed germination:
This species has physical dormancy that needs to be overcome for the seed to germinate (e.g. nicking or softening the seed coat).
Seeds stored:
LocationNo. of seeds
(weight grams)
Number
of plants
Date
collected
Collection number
Collection location
Date
stored
% ViabilityStorage
temperature
BGA3400 (139.72 g)70-8027-Sep-2007MJT94
Lake Eyre
19-Sep-200895%-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.