Seeds of South Australia
Caladenia aurulenta (Orchidaceae)
Long Golden-club Spider-orchid
List of species for Caladenia
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Seed collecting:
October to November
Herbarium region:
Eyre Peninsula
NRM region:
Eyre Peninsula
IBRA regions
Eyre Hills (EYB03)Eyre Yorke Block
 Vulnerable   (IUCN: VU B2ab(i,ii,iii))   (Probable Decline)
Talia (EYB04) 
 Vulnerable   (IUCN: VU B2ab(i,ii,iii))   (Probable Decline)
Eyre Mallee (EYB05) 
 Vulnerable   (IUCN: VU B2ab(i,ii,iii))   (Probable Decline)
Myall Plains (GAW01)Gawler
 Vulnerable   (IUCN: VU B2ab(i,ii,iii))   (Probable Decline)
Gawler Volcanics (GAW02) 
 Vulnerable   (IUCN: VU B2ab(i,ii,iii))   (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 Caladenia]
Name derivation:
Caladenia from the Greek 'kallos' meaning beauty and 'aden' meaning a gland; referring to the colourful labellum and the glistening glands at the base of the column that adorn many of the species. Aurulenta from the Latin 'aureum' meaning golden; referring to its flowers.
Distribution:
Endemic to South Australia and found on the upper Eyre Peninsula, growing in gullies under wattles and shrubs on rocky outcrops.
Status:
Native. Rare in South Australia.
Plant description:
Terrestrial orchid with a single, linear, pubescent leaf. Inflorescence on an erect hairy stem to 20 cm long with a single large flower. Flowering between August and September.
Fruit type:
Brown hairy, papery ellipsoid capsule containing numerous tiny seeds.
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, refrigerator or in liquid nitrogen.