Seeds of South Australia
Zygophyllum kochii (Zygophyllaceae)
Koch's Twinleaf
List of species for Zygophyllum
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Seed collecting:
October to November
Herbarium regions:
North Western, Lake Eyre, Gairdner-Torrens, Flinders Ranges, Eastern
NRM regions:
Alinytjara Wilurara, South Australian Arid Lands
IBRA regions
Northern Flinders (FLB05)Flinders Lofty Block
 Near Threatened
Gawler Lakes (GAW03)Gawler
 Rare   (IUCN: RA d(i,ii))
Torrens (GAW06) 
 Rare   (IUCN: RA d(i,ii))
Bimbowrie (BHC05)Broken Hill Complex
 Rare   (IUCN: RA d(i,ii))   [naturally rare, gypsious soils, needs rain events]
Oodnadatta (STP02)Stony Plains
 Rare   (IUCN: RA d(i,ii))
Everard Block (CER03)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. Kochii named after Maxwell "Max" Koch (1854-1925), a German-born Australian botanical collector who collected the type specimen for the specie.
Distribution:
Found scattered in the central part of South Australia, growing on gravelly clay soils in low lying areas. Also found in Western Australia.
Status:
Native. Uncommon in South Australia. Common in Western Australia.
Plant description:
Leaves with distinctive 3-lobed leaflets. Flowering between July and September.
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.