Seeds of South Australia
Alternanthera nodiflora (Amaranthaceae)
Common Joyweed
List of species for Alternanthera
Click on an image to enlarge it
Seed collecting:
January to December
Herbarium regions:
North Western, Lake Eyre, Gairdner-Torrens, Flinders Ranges, Murray
NRM regions:
Alinytjara Wilurara, South Australian Arid Lands, South Australian Murray-Darling Basin
IBRA regions
SUMMARY
Central Flinders (FLB06)Flinders Lofty Block
 Rare   (IUCN: RA d(ii))   [southern edge of range]
Murray Mallee (MDD02)Murray Darling Depression
 Near Threatened   (Probable Decline)
Murray Scroll Belt (RIV06)Riverina
 Least Concern   (Probable Decline)
Arcoona Plateau (GAW04)Gawler
 Rare   (IUCN: RA d(i,ii))   [edge of range]
Torrens (GAW06) 
 Least Concern
Roxby (GAW07) 
 Least Concern
Tallaringa (GVD05)Great Victoria Desert
 Rare   (IUCN: RA d(ii))
Dieri (SSD03)Simpson Strzelecki Dunefields
 Least Concern
Warriner (SSD04) 
 Least Concern
Strzelecki Desert (SSD05) 
 Least Concern
Breakaways (STP01)Stony Plains
 Least Concern
Oodnadatta (STP02) 
 Least Concern
Murnpeowie (STP03) 
 Least Concern
Macumba (STP05) 
 Least Concern
Witjira (STP06) 
 Least Concern
Baltana (STP07) 
 Least Concern
Sturt Stony Desert (CHC02)Channel Country
 Least Concern
Diamantina-Eyre (CHC04) 
 Least Concern
Coongie (CHC06) 
 Least Concern
Lake Pure (CHC07) 
 Least Concern
Everard Block (CER03)Central Ranges
 Rare   (IUCN: RA d(ii))
IBRA regions
DISPLAY ALL
Central Flinders (FLB06)Flinders Lofty BlockRare
  (IUCN: RA d(ii))   [southern edge of range]
Murray Mallee (MDD02)Murray Darling DepressionNear Threatened
  (Probable Decline)
Murray Scroll Belt (RIV06)RiverinaLeast Concern
  (Probable Decline)
3 of 8 subregionsGawlerLeast Concern
, Rare
Tallaringa (GVD05)Great Victoria DesertRare
  (IUCN: RA d(ii))
3 of 4 subregionsSimpson Strzelecki DunefieldsLeast Concern
6 of 7 subregionsStony PlainsLeast Concern
4 of 4 subregionsChannel CountryLeast Concern
Everard Block (CER03)Central RangesRare
  (IUCN: RA d(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 Alternanthera]
SA Flora:
Flora of South Australia Edition 5
Name derivation:
Alternanthera from the Latin 'alternus' meaning alternate and 'anthera' meaning anthers; referring to the filaments without anthers often alternate with fertile stamens. Nodiflora from the Latin 'nodus' meaning nodes and 'florus' meaning flower; referring to the flowers bearing at the nodes. 
Distribution:
Found in the north-east and along the Murray River in South Australia, growing on moist alluvial sand or clay in floodplain, creek and depressions. Also found in all mainland states.
Status:
Native. Common in South Australia. Common in the other states.
Plant description:
Annual herbs with stems erect or ascending and branches almost glabrous or hairs at the nodes. Leaves almost glabrous, linear to linear-lanceolate, to 80 mm long. Flowers in axillary globular spikes, often clustered with white flowers. Flowers throughout the year.
Fruit type:
Pale brown globular fruiting cluster.
Embryo type:
Peripheral.
Seed collecting:
Collect mature fruits, those that are turning a pale straw colour and contain very small brown seeds. Can collect individual spike or break off the whole stem.
Seed cleaning:
Place the fruit in a tray and leave to dry for two weeks. Then rub the fruits gently by hand to dislodge the seeds. Use a sieve to separate the unwanted material. Be careful as the seeds are very small. 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.
Seed germination:
Seeds are non-dormant, viable seed should germinate readily.