Seeds of South Australia
Hemichroa diandra (Amaranthaceae)
Mallee Hemichroa
List of species for Hemichroa
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Seed collecting:
January to December
Herbarium regions:
North Western, Lake Eyre, Nullarbor, Gairdner-Torrens, Flinders Ranges, Eyre Peninsula, Northern Lofty, Yorke Peninsula, Southern Lofty, Kangaroo Island
NRM regions:
Adelaide and Mount Lofty Ranges, Alinytjara Wilurara, Eyre Peninsula, Kangaroo Island, Northern and Yorke, South Australian Arid Lands
IBRA regions
Northern Flinders (FLB05)Flinders Lofty Block
 Rare   (IUCN: RA d(i,ii))   [likes sandy, salty claypans]
St Vincent (EYB02)Eyre Yorke Block
 Near Threatened   (Probable Decline)   [salty, calcareous soils, coastal, habitats restricted]
Eyre Hills (EYB03) 
 Rare   (IUCN: RA d(ii))   (Probable Decline)   [in samphires]
Talia (EYB04) 
 Least Concern
Eyre Mallee (EYB05) 
 Least Concern
Myall Plains (GAW01)Gawler
 Rare   (IUCN: RA d(i,ii))   [restricted]
Gawler Volcanics (GAW02) 
 Rare   (IUCN: RA d(ii))
Gawler Lakes (GAW03) 
 Least Concern
Arcoona Plateau (GAW04) 
 Rare   (IUCN: RA d(i,ii))   [restricted]
Kingoonya (GAW05) 
 Rare   (IUCN: RA d(i,ii))   [restricted]
Torrens (GAW06) 
 Near Threatened   [likes sandy, salty claypans]
Commonwealth Hill (GAW08) 
 Least Concern   [likes sandy, salty claypans]
Maralinga (GVD03)Great Victoria Desert
 Rare   (IUCN: RA d(ii))
Yellabinna (GVD06) 
 Rare   (IUCN: RA d(ii))
Nullarbor Plain (NUL02)Nullarbor
 Least Concern
Yalata (NUL03) 
 Least Concern
Hampton (HAM01)Hampton
 Least Concern
Oodnadatta (STP02)Stony Plains
 Rare   (IUCN: RA d(ii))   [likes sandy, salty claypans]
Murnpeowie (STP03) 
 Rare   (IUCN: RA d(ii))   [likes sandy, salty claypans]
Witjira (STP06) 
 Rare   (IUCN: RA d(ii))   [likes sandy, salty claypans]
IBRA regions
Northern Flinders (FLB05)Flinders Lofty BlockRare
  (IUCN: RA d(i,ii))   [likes sandy, salty claypans]
4 of 5 subregionsEyre Yorke BlockLeast Concern
, Near Threatened
, Rare
7 of 8 subregionsGawlerLeast Concern
, Near Threatened
, Rare
2 of 4 subregionsGreat Victoria DesertRare
2 of 3 subregionsNullarborLeast Concern
Hampton (HAM01)HamptonLeast Concern
3 of 7 subregionsStony PlainsRare
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 Hemichroa]
SA Flora:
Flora of South Australia Edition 5
Name derivation:
Hemichroa from the Greek 'hemi' meaning half and 'chroa' meaning colour; referring to the perianth of Hemichroa pentandra which is sometimes pink inside, whitish outside. Diandra from the Greek 'di' meaning two and 'andra' meaning stamen.
Found scattered across South Australia except near the eastern bounder, growing on sand and saline soils around salt lakes and coastal salt flats. Also found in all mainland states.
Native. Common in South Australia. Very rare in Queensland, New South Wales and Victoria. Common in the other states.
Plant description:
Woody forb to 30cm tall.  Leaves succulent, alternating up the stems, to 12 mm long, flat to linear, hairless, often with a curved point.  Flowers white or pink, with 5 'petals', solitary at the bases of the leaves. Flowering between July to January.
Fruit type:
Brown woody fruit, persistent in bract axils.
Embryo type:
Seed collecting:
Collect fruit that are brown. Look for one with fat swilling at base.
Seed cleaning:
Place the fruit in a tray to dry. No further cleaning is required for storage. Each half of the fruit contain a seed in the woody swollen base. Store the fruit with a desiccant such as dried silica beads or dry rice, in an air tight container in a cool and dry place.