Seeds of South Australia
Waitzia acuminata var. acuminata (Compositae)
Orange Immortelle
List of species for Waitzia
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Seed collecting:
January, November
Herbarium regions:
North Western, Lake Eyre, Nullarbor, Gairdner-Torrens, Flinders Ranges, Eastern, Eyre Peninsula, Murray, South Eastern
NRM regions:
Alinytjara Wilurara, Eyre Peninsula, South Australian Arid Lands, South Australian Murray-Darling Basin, South East
IBRA regions
SUMMARY
Northern Flinders (FLB05)Flinders Lofty Block
 Rare   (IUCN: RA d(i,ii))   (Probable Decline)
Central Flinders (FLB06) 
 Rare   (IUCN: RA d(i,ii))
Eyre Hills (EYB03)Eyre Yorke Block
 Rare   (IUCN: RA d(ii))
Talia (EYB04) 
 Rare   (IUCN: RA d(ii))
Eyre Mallee (EYB05) 
 Least Concern
South Olary Plain (MDD01)Murray Darling Depression
 Least Concern   [ephemeral]
Murray Mallee (MDD02) 
 Rare   (IUCN: RA d(i,ii))   [ephemeral]
Lowan Mallee (MDD04) 
 Rare   (IUCN: RA d(i,ii))   [outlier]
Murray Scroll Belt (RIV06)Riverina
 Rare   (IUCN: RA ab)   (Probable Decline)   [ephemeral]
Myall Plains (GAW01)Gawler
 Rare   (IUCN: RA d(ii))   (Probable Decline)
Gawler Volcanics (GAW02) 
 Least Concern
Gawler Lakes (GAW03) 
 Rare   (IUCN: RA d(ii))
Arcoona Plateau (GAW04) 
 Rare   (IUCN: RA d(i,ii))
Kingoonya (GAW05) 
 Least Concern
Roxby (GAW07) 
 Least Concern
Commonwealth Hill (GAW08) 
 Least Concern
Maralinga (GVD03)Great Victoria Desert
 Least Concern
Kintore (GVD04) 
 Least Concern
Tallaringa (GVD05) 
 Least Concern
Yellabinna (GVD06) 
 Least Concern
Carlisle (NUL01)Nullarbor
 Least Concern
Breakaways (STP01)Stony Plains
 Least Concern
Oodnadatta (STP02) 
 Least Concern
Mann-Musgrave Block (CER01)Central Ranges
 Least Concern
Watarru (CER02) 
 Least Concern
Everard Block (CER03) 
 Least Concern
Tieyon (FIN03)Finke
 Least Concern
Pedirka (FIN04) 
 Least Concern
IBRA regions
DISPLAY ALL
2 of 6 subregionsFlinders Lofty BlockRare
3 of 5 subregionsEyre Yorke BlockLeast Concern
, Rare
3 of 6 subregionsMurray Darling DepressionLeast Concern
, Rare
Murray Scroll Belt (RIV06)RiverinaRare
  (IUCN: RA ab)   (Probable Decline)   [ephemeral]
7 of 8 subregionsGawlerLeast Concern
, Rare
4 of 4 subregionsGreat Victoria DesertLeast Concern
Carlisle (NUL01)NullarborLeast Concern
2 of 7 subregionsStony PlainsLeast Concern
3 of 3 subregionsCentral RangesLeast Concern
2 of 2 subregionsFinkeLeast Concern
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 Waitzia]
Name derivation:
Waitzia name after Karl Friedrich Waitz (1774-1848), a privy councillor of the Duchy of Saxe-Altenburg. Acuminata from the Latin 'acuminatus' meaning pointed or sharpened; referring to the lanceoate bracts.
Distribution:
Found across most parts of South Australia except in the south-east and north-east corners, growing in mulga and mallee, usually on red sand dunes. Also found in all mainland states.
Status:
Native. Common inn South Australia. Uncommon in Queensland. Common in the other states.
Plant description:
Annual herb to 50 cm high with stems erect to ascending, numerous from the base, unbranched, brown, pubescent. Basal leaves narrowly oblanceolate to elliptic, subacute, to 11 cm long, often absent at flowering, stem leaves narrowly lanceolate to linear, acute, to 70 mm long and 5 mm wide, sparsely cobwebby to pubescent, with recurved margins. Flowers loose clusters at end of stalk with reddish-orange to golden-yellow papery daisy flowers. Flowering between July and October.
Fruit type:
Yellow-brown daisy head.
Embryo type:
Spatulate.
Seed collecting:
Collect whole heads that are brown or collect seeds that are easily removed from the head.
Seed cleaning:
Place the heads in a tray for a week to dry. Then rub the heads gently with your hands to dislodge the seeds. Viable seeds will be dark and hard. 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.