Seeds of South Australia
Zygophyllum apiculatum (Zygophyllaceae)
Pointed-fruit Twinleaf
List of species for Zygophyllum
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Seed collecting:
October to January
Herbarium regions:
North Western, Lake Eyre, Nullarbor, Gairdner-Torrens, Flinders Ranges, Eastern, Eyre Peninsula, Northern Lofty, Murray, Yorke Peninsula, Southern Lofty, South Eastern
NRM regions:
Adelaide and Mount Lofty Ranges, Alinytjara Wilurara, Eyre Peninsula, Northern and Yorke, South Australian Arid Lands, South Australian Murray-Darling Basin, South East
IBRA regions
SUMMARY
Broughton (FLB02)Flinders Lofty Block
 Least Concern
Olary Spur (FLB03) 
 Least Concern
Southern Flinders (FLB04) 
 Least Concern
Northern Flinders (FLB05) 
 Least Concern
Central Flinders (FLB06) 
 Least Concern
St Vincent (EYB02)Eyre Yorke Block
 Least Concern
Eyre Hills (EYB03) 
 Least Concern
Talia (EYB04) 
 Least Concern
Eyre Mallee (EYB05) 
 Least Concern
South Olary Plain (MDD01)Murray Darling Depression
 Least Concern
Murray Mallee (MDD02) 
 Least Concern
Lowan Mallee (MDD04) 
 Near Threatened
Braemer (MDD07) 
 Least Concern
Murray Scroll Belt (RIV06)Riverina
 Least Concern
Myall Plains (GAW01)Gawler
 Least Concern
Gawler Volcanics (GAW02) 
 Least Concern
Gawler Lakes (GAW03) 
 Least Concern
Arcoona Plateau (GAW04) 
 Rare   (IUCN: RA d(ii))
Kingoonya (GAW05) 
 Least Concern
Maralinga (GVD03)Great Victoria Desert
 Least Concern
Yellabinna (GVD06) 
 Least Concern
Nullarbor Plain (NUL02)Nullarbor
 Least Concern
Yalata (NUL03) 
 Least Concern
Hampton (HAM01)Hampton
 Least Concern
Barrier Range (BHC01)Broken Hill Complex
 Least Concern
Breakaways (STP01)Stony Plains
 Least Concern
Murnpeowie (STP03) 
 Near Threatened
Peake-Dennison Inlier (STP04) 
 Least Concern
Macumba (STP05) 
 Least Concern
Baltana (STP07) 
 Least Concern
Sturt Stony Desert (CHC02)Channel Country
 Rare   (IUCN: RA d(ii))
Lake Pure (CHC07) 
 Rare   (IUCN: RA d(i,ii))
Mann-Musgrave Block (CER01)Central Ranges
 Rare   (IUCN: RA d(ii))   [1 old record]
Everard Block (CER03) 
 Least Concern
IBRA regions
DISPLAY ALL
5 of 6 subregionsFlinders Lofty BlockLeast Concern
4 of 5 subregionsEyre Yorke BlockLeast Concern
4 of 6 subregionsMurray Darling DepressionLeast Concern
, Near Threatened
Murray Scroll Belt (RIV06)RiverinaLeast Concern
5 of 8 subregionsGawlerLeast Concern
, Rare
2 of 4 subregionsGreat Victoria DesertLeast Concern
2 of 3 subregionsNullarborLeast Concern
Hampton (HAM01)HamptonLeast Concern
Barrier Range (BHC01)Broken Hill ComplexLeast Concern
5 of 7 subregionsStony PlainsLeast Concern
, Near Threatened
2 of 4 subregionsChannel CountryRare
2 of 3 subregionsCentral RangesLeast 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 Zygophyllum]
Name derivation:
Zygophyllum from the Greek 'zygon' meaning pair and 'phyllon' meaning leaf; referring to the pair of leaflets making up each leaf. Apiculatum from the Latin 'apicatus' meaning pointed tip; referring to the pointed tip of the fruit.
Distribution:
Found across South Australia except on Kangaroo island and the South-east, growing in mallee and woodland on sandy calcareous soils. Also found in all mainland states.
Status:
Native. Common in South Australia. Common in all mainland states.
Plant description:
Erect perennial subshrub to 40 cm high, often compact and bushy, usually with a woody base. Leaves Y-shaped to 80 mm long, green, fleshy, leaflets obliquely obovate, to 40 mm long and 20 mm wide, apex rounded. Flowers bright yellow with 5 sepals and 5 petals. Flowering between August and November.
Fruit type:
Pale brown 5-angled capsule to 10 mm long, abruptly truncate at apex with a short, blunt point at the upper corner of each angle with 1 seed per cell.
Seed type:
Brown ovoid seeds to 4 mm long and 2 mm wide, with smooth surface.
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.