Seeds of South Australia
Androcalva loxophylla (Sterculiaceae)
List of species for Androcalva
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Seed collecting:
October to December
Herbarium regions:
North Western, Lake Eyre, Gairdner-Torrens
NRM regions:
Alinytjara Wilurara, South Australian Arid Lands
IBRA regions
Maralinga (GVD03)Great Victoria Desert
 Rare   (IUCN: RA d(ii))
Kintore (GVD04) 
 Least Concern
Breakaways (STP01)Stony Plains
 Rare   (IUCN: RA d(i,ii))
Coongie (CHC06)Channel Country
 Rare   (IUCN: RA d(i,ii))   [outlier]
Lake Pure (CHC07) 
 Rare   (IUCN: RA d(ii))   [outlier]
Mann-Musgrave Block (CER01)Central Ranges
 Least Concern
Watarru (CER02) 
 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 Androcalva]
Name derivation:
Androcalva from the Greek 'andros' meaning a male and 'calvus' meaning bald, hairless; referring to the glabrous staminodes present in this genus. Loxophylla from the Greek 'loxos ' meaning slanting and 'phyllos ' meaning a leaf; thought to refer to the oblique base on the leaves, a characteristic common to all species in the genus.
Found in the northern part of South Australia, mainly in the north-west and north-east corners, with disjunct and isolated records further south. Grows in open mulga, low woodland with scattered eucalypts, in swale of desert dunes with hummock grassland or in open shrubland in sandplain with lateritic red loam, granite rock areas, and is occasionally recorded in dry creek beds. Also found in Western Australia, Northern Territory and Queensland.
Native. Uncommon in South Australia but more abundant after fire. Common in the other states.
Plant description:
Shrub with spreading or semiprostrate branches, to 50 cm high and much broader than high. Younger branches densely covered in stellate hairs. Leaves oblong-lanceolate to broad-elliptic, entire to serrate, sometimes undulate, with a slightly impressed midrib and other veins, with flat margins, densely stellate-tomentose below but less so or subglabrous above, pale below, to 50 mm long and 25 mm wide. Inflorescence dense cluster with 20 small yellow flowers. Flowering between August to October.
Fruit type:
Hairy brown globular capsule to 3 mm diameter,  with 5 valves, splitting when matured and contain numerous seeds.
Embryo type:
Seed collecting:
Capsules can be collected prior to splitting as long as the seeds inside are hard and dark.
Seed cleaning:
Place the capsules in a tray and cover with paper to prevent seeds being lost when explosively 'popping' out. Leave to dry for at least a week. Rub the dried capsules by hand to dislodge the seeds. Use a sieve 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.
Seeds stored:
LocationNo. of seeds
(weight grams)
of plants
Collection number
Collection location
% ViabilityStorage
BGA520 (0.9914 g)60-7023-Oct-2007MJT149
Lake Eyre
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.