Seeds of South Australia
Zygophyllum eremaeum (Zygophyllaceae)
Climbing Twinleaf
List of species for Zygophyllum
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Seed collecting:
September to December
Herbarium regions:
North Western, Lake Eyre, Nullarbor, Gairdner-Torrens, Flinders Ranges, Eastern, Eyre Peninsula, Murray
NRM regions:
Alinytjara Wilurara, Eyre Peninsula, South Australian Arid Lands, South Australian Murray-Darling Basin
IBRA regions
SUMMARY
Olary Spur (FLB03)Flinders Lofty Block
 Near Threatened   (Probable Decline)   [Decline in distribution, mostly roadsides, possibly undercollected]
Southern Flinders (FLB04) 
 Near Threatened   (Probable Decline)   [Decline in distribution, mostly roadsides, possibly undercollected]
Northern Flinders (FLB05) 
 Rare   (IUCN: RA d(ii))
Central Flinders (FLB06) 
 Rare   (IUCN: RA d(ii))
Eyre Hills (EYB03)Eyre Yorke Block
 Rare   (IUCN: RA d(ii))
Talia (EYB04) 
 Rare   (IUCN: RA d(ii))
Eyre Mallee (EYB05) 
 Rare   (IUCN: RA d(ii))
South Olary Plain (MDD01)Murray Darling Depression
 Least Concern
Murray Mallee (MDD02) 
 Rare   (IUCN: RA d(ii))
Braemer (MDD07) 
 Near Threatened   (Probable Decline)   [Decline in distribution, mostly roadsides, possibly undercollected]
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) 
 Least Concern
Kingoonya (GAW05) 
 Least Concern
Torrens (GAW06) 
 Rare   (IUCN: RA d(ii))
Roxby (GAW07) 
 Least Concern
Commonwealth Hill (GAW08) 
 Least Concern
Maralinga (GVD03)Great Victoria Desert
 Least Concern
Kintore (GVD04) 
 Near Threatened   [undercollected]
Tallaringa (GVD05) 
 Least Concern   [undercollected]
Yellabinna (GVD06) 
 Least Concern
Nullarbor Plain (NUL02)Nullarbor
 Least Concern
Yalata (NUL03) 
 Least Concern
Breakaways (STP01)Stony Plains
 Least Concern   [undercollected]
Oodnadatta (STP02) 
 Near Threatened   [undercollected]
Witjira (STP06) 
 Near Threatened   [undercollected]
Mann-Musgrave Block (CER01)Central Ranges
 Near Threatened   [undercollected]
Watarru (CER02) 
 Least Concern   [undercollected]
Everard Block (CER03) 
 Near Threatened   [undercollected]
Tieyon (FIN03)Finke
 Near Threatened   [undercollected]
Pedirka (FIN04) 
 Near Threatened   [undercollected]
IBRA regions
DISPLAY ALL
4 of 6 subregionsFlinders Lofty BlockNear Threatened
, Rare
3 of 5 subregionsEyre Yorke BlockRare
3 of 6 subregionsMurray Darling DepressionLeast Concern
, Near Threatened
, Rare
Murray Scroll Belt (RIV06)RiverinaLeast Concern
8 of 8 subregionsGawlerLeast Concern
, Rare
4 of 4 subregionsGreat Victoria DesertLeast Concern
, Near Threatened
2 of 3 subregionsNullarborLeast Concern
3 of 7 subregionsStony PlainsLeast Concern
, Near Threatened
3 of 3 subregionsCentral RangesLeast Concern
, Near Threatened
2 of 2 subregionsFinkeNear Threatened
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. Eremaeum from the Greek 'eremos' meaning desert and suffix 'eum' meaning belonging to; referring to the habitat of the species in semi-arid areas.
Distribution:
Found in the northern part of South Australia, growing on calcareous sand and stony red-brown sandy loam often scrambling into taller shrubs. Also found in all mainland states.
Status:
Native. Common in South Australia. Uncommon in Queensland. Common in the other states.
Plant description:
Weak perennial (sometimes annual) subshrub to 40 cm high, sometimes scrambling or climbing for several metres. Leaves Y-shaped, succulent, green, leaflet linear to terete, to 20 mm long and 3 mm wide, continuous with petiole, spreading, apex acute. Inflorescence solitary at each node with pale lemon-yellow flowers. Flowering between July and October.
Fruit type:
Pale brown round papery capsule to 13 mm long, with 4 very thin vertical wings.
Seed type:
Pale brown wedge-shaped seed to 4.2 mm long and 2 mm wide, with fine pitted 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 greeness 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.