Seeds of South Australia
Calotis porphyroglossa (Compositae)
Channel Burr-daisy
List of species for Calotis
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Seed collecting:
September to January
Herbarium regions:
North Western, Lake Eyre, Gairdner-Torrens, Flinders Ranges
NRM regions:
Alinytjara Wilurara, South Australian Arid Lands
IBRA regions
SUMMARY
Gawler Lakes (GAW03)Gawler
 Rare   (IUCN: RA d(i,ii))   [southern limit]
Torrens (GAW06) 
 Rare   (IUCN: RA d(ii))
Roxby (GAW07) 
 Rare   (IUCN: RA d(ii))
Tallaringa (GVD05)Great Victoria Desert
 Rare   (IUCN: RA d(ii))
Simpson Desert (SSD02)Simpson Strzelecki Dunefields
 Least Concern
Dieri (SSD03) 
 Least Concern
Warriner (SSD04) 
 Rare   (IUCN: RA d(ii))
Strzelecki Desert (SSD05) 
 Least Concern
Oodnadatta (STP02)Stony Plains
 Rare   (IUCN: RA d(ii))
Murnpeowie (STP03) 
 Rare   (IUCN: RA d(ii))
Macumba (STP05) 
 Rare   (IUCN: RA d(ii))
Witjira (STP06) 
 Rare   (IUCN: RA d(ii))
Sturt Stony Desert (CHC02)Channel Country
 Least Concern
Diamantina-Eyre (CHC04) 
 Rare   (IUCN: RA d(ii))
Coongie (CHC06) 
 Least Concern
Lake Pure (CHC07) 
 Least Concern
IBRA regions
DISPLAY ALL
3 of 8 subregionsGawlerRare
Tallaringa (GVD05)Great Victoria DesertRare
  (IUCN: RA d(ii))
4 of 4 subregionsSimpson Strzelecki DunefieldsLeast Concern
, Rare
4 of 7 subregionsStony PlainsRare
4 of 4 subregionsChannel CountryLeast Concern
, Rare
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 Calotis]
Name derivation:
Calotis from the Greek 'kalos' meaning beautiful and 'otos' meaning ear; after the first species named in the genus Calotis cuneifolia which has an ear-shaped pappus. Porphyroglossa from the Greek 'porphyra' meaning purple-fish, or a reddish dye made from it and 'glossa' meaning tongue; alluding to the shape and colour of the ray florets.
Distribution:
Found in the north and north-east parts of South Australia, growing on alluvial soils of floodplains and river beds. Also found in Western Australia, Northern Territory, Queensland and New South Wales.
Status:
Native. Common in South Australia. Uncommon in New South Wales. Common in the other states.
Plant description:
Annual herb to 40 cm high with stems erect or ascending, much-branched, hairy and often becoming woody at the base. Base leaves petiolate, cuneate to 4 cm long, soon withering. Stem leaves sessile, cuneate to narrow-cuneate to 4 cm long and 10 mm wide, narrow at the base, dentate or lobed near the apex, strigose to pubescent. Flower-head solitary or in loose leafy terminal cymes of 2-8 flowers, ray florets mauve. Flowering between June and December.
Fruit type:
Brown round spiny fruit-head.
Seed type:
Brown triangular seed to 1.5 mm long covered in short hairs and short spines at one end.
Embryo type:
Spathulate fully developed.
Seed collecting:
Collect mature seed heads that are dried and turning brown by picking off the heads and placing them in a paper bag. Be careful as the heads are spiny.
Seed cleaning:
Leave the heads in the paper bag to dry for at least a week. No further cleaning required if only the heads are collected. If other material were collected, use a sieve to separate the unwanted material. Whole heads can be stored with a desiccant such as dried silica beads or dry rice, in an air tight container in a cool and dry place.e
Seed germination:
Seeds are non-dormant, viable seed should germinate readily.