Seeds of South Australia
Zygophyllum tesquorum (Zygophyllaceae)
White-flower Twinleaf
List of species for Zygophyllum
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Seed collecting:
September to November
Herbarium regions:
North Western, Lake Eyre
NRM regions:
Alinytjara Wilurara, South Australian Arid Lands
IBRA regions
Kintore (GVD04)Great Victoria Desert
 Rare   (IUCN: RA d(i,ii))
Baltana (STP07)Stony Plains
 Rare   (IUCN: RA d(i,ii))
Mann-Musgrave Block (CER01)Central Ranges
 Rare   (IUCN: RA d(i,ii))
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 Zygophyllum]
Name derivation:
Zygophyllum from the Greek 'zygon' meaning pair and 'phyllon' meaning leaf; referring to the pair of leaflets making up each leaf. Tesquorum means of waste ground or desert; referring to its habitat in the centre of Australia.
Distribution:
Found in the far north-western part in South Australia, growing in disturbed areas on calcareous soils. Also found in Western Australia and the Northern Territory.
Status:
Native. Rare in South Australia. Common in the other states.
Plant description:
Erect to spreading herb to 30 cm high with glabrous ridged stems. Leaves opposite, succulent, green, oblong to ellpotic, Y-shaped, to 18 mm long and 8 mm wide, glabrous. Inflorescence solitary at each node with white flowers. Flowering between July and September.
Fruit type:
Ovoid capsule to 11 mm long, strongly 5-angled (but not winged), on a long stalk.
Embryo type:
Spatulate fully developed.
Seed collecting:
Collect semi-dried and dried capsules by running your hands through the stems of the plant. Mature fruits will come off easily and will have a hard and dark seed inside each segment.
Seed cleaning:
Place the capsules in a tray and leave to dry for 1 to 2 weeks, depending on the greenness of the fruit. Then rub the dried capsules to dislodge the seeds. Use a sieve to remove 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.