Seeds of South Australia
Thelymitra antennifera (Orchidaceae)
Rabbit-ears
List of species for Thelymitra
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Seed collecting:
January to February
Herbarium regions:
Flinders Ranges, Eyre Peninsula, Northern Lofty, Murray, Yorke Peninsula, Southern Lofty, Kangaroo Island, South Eastern
NRM regions:
Adelaide and Mount Lofty Ranges, Eyre Peninsula, Kangaroo Island, Northern and Yorke, South Australian Murray-Darling Basin, South East
IBRA regions
SUMMARY
Mount Gambier (SVP02)Southern Volcanic Plain
 Endangered   (IUCN: EN B2ab(i,ii,iii))   (Definite Decline)
Bridgewater (NCP01)Naracoorte Coastal Plain
 Rare   (IUCN: RA d(ii))   (Probable Decline)   [not suitable habitat; habitat degraded]
Glenelg Plain (NCP02) 
 Vulnerable   (IUCN: VU B2ab(i,ii,iii))   (Probable Decline)
Lucindale (NCP03) 
 Least Concern   [more suitable habitat]
Tintinara (NCP04) 
 Least Concern   [lots of suitable habitat]
Kangaroo Island (KAN01)Kanmantoo
 Least Concern
Fleurieu (KAN02) 
 Least Concern
Mount Lofty Ranges (FLB01)Flinders Lofty Block
 Least Concern
Broughton (FLB02) 
 Critically Endangered   (IUCN: CR A1ac; D)   (Definite Decline)   [Mintaro Hills, Spring Gully gone?]
Southern Flinders (FLB04) 
 Critically Endangered   (IUCN: CR A1ac; D)   (Definite Decline)   [1 population remaining in Mt Remarkable.]
Southern Yorke (EYB01)Eyre Yorke Block
 Least Concern   (Probable Decline)   [Least concern.]
St Vincent (EYB02) 
 Regionally Extinct   [Extinct from sub-region. ]
Eyre Hills (EYB03) 
 Least Concern
Talia (EYB04) 
 Least Concern
Eyre Mallee (EYB05) 
 Rare   (IUCN: RA d(ii))   (Probable Decline)
Murray Mallee (MDD02)Murray Darling Depression
 Near Threatened   (Probable Decline)   [edge of range]
Murray Lakes and Coorong (MDD03) 
 Rare   (IUCN: RA d(ii))   [edge of range]
Lowan Mallee (MDD04) 
 Near Threatened   (Probable Decline)
Wimmera (MDD05) 
 Endangered   (IUCN: EN B2ab(i,ii,iii))   (Probable Decline)   [habitat gone, cleared]
Gawler Volcanics (GAW02)Gawler
 Rare   (IUCN: RA d(ii))   (Probable Decline)
IBRA regions
DISPLAY ALL
Mount Gambier (SVP02)Southern Volcanic PlainEndangered
  (IUCN: EN B2ab(i,ii,iii))   (Definite Decline)
4 of 4 subregionsNaracoorte Coastal PlainLeast Concern
, Rare
, Vulnerable
2 of 2 subregionsKanmantooLeast Concern
3 of 6 subregionsFlinders Lofty BlockLeast Concern
, Critically Endangered
5 of 5 subregionsEyre Yorke BlockLeast Concern
, Rare
, Regionally Extinct
4 of 6 subregionsMurray Darling DepressionNear Threatened
, Rare
, Endangered
Gawler Volcanics (GAW02)GawlerRare
  (IUCN: RA d(ii))   (Probable Decline)
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 Thelymitra]
Name derivation:
Thelymitra from Greek 'thelys' meaning a bishop and 'mitra' meaning a headwear, hat, hence a bishop’s mitre; referring to the sometimes plumed or decorated wings of the column, which is usually produced behind and over the anther in a hood-like projection. Antennifera meaning with antennae; referring to the erect column arms which resemble antennae or ears. 
Distribution:
Found in the southern part of South Australia from the west coast, across Eyre Peninsula and inland to the Gawler Ranges, the Southern Flinders, through Yorke Peninsula, the Mount Lofty Ranges, the southern Murray-lands, Kangaroo Island and the South-east. Grows In a variety of soil types from sands to clays, from swamp margins, in seepage areas in woodland, heath, mallee-heath and grasslands. Also found in Western Australia, Victoria and Tasmania.
Status:
Native. Common in South Australia. Common in the other states.
Plant description:
Leaf, filiform, terete, erect, to 10 cm long with red striped at the base. Flower stem to 20 cm tall, wiry and zig zag; with sheathing stem bracts at the point of flexion. The flowers 1-4, widely and freely opening, about 30 mm across, bright yellow with dark brown column arms. Column about 5 mm high, with two erect, minutely papillose, somewhat two-lobed, spathulate appendages more than 3 mm long, resembling rabbit ears.  The flowers are faintly but sweetly scented. Flowering between August and November.
Fruit type:
Brown papery ellipsoid capsule.
Seed collecting:
Collect fat capsules as they start to dry and turn brown. Pods will split and release the seeds quickly and will require monitoring. To increase the chances of collecting mature pods, it is recommended that a small breathable bag (ie. Organza bags) be used to enclose the developing capsules.
Seed cleaning:
Place the capsules in a container that will hold fine seeds and leave to dry for a few weeks or until the capsule split. Then carefully hold the capsule and tap it gently to release the seeds. 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 or in liquid nitrogen.