Seeds of South Australia
Caladenia parva (Orchidaceae)
Small Spider-orchid
List of species for Caladenia
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Seed collecting:
Herbarium regions:
Southern Lofty, South Eastern
NRM regions:
Adelaide and Mount Lofty Ranges, South East
IBRA regions
Glenelg Plain (NCP02)Naracoorte Coastal Plain
 Vulnerable   (IUCN: VU D2)   [edge of range, Vic spp.]
Lucindale (NCP03) 
 Vulnerable   (IUCN: VU D2)   [edge of range, Vic spp.]
Mount Lofty Ranges (FLB01)Flinders Lofty Block
 Data Deficient   [questionable record; odd location; found in SE; difficult to ID]
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 'callos' 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. Parva, Latin for small.
Found in the South-East and the Southern Mt Lofty regions of South Australia. Also found in southern Victoria extending inland to to the Grampians. It grows in heath and heathy woodlands, often preferring damper sites. 
Native. Endangered in South Australia.
Plant description:
Grows to 15cm tall, with a single (rarely 2) small flower. The single basal leaf is lance-shaped and hairy 10cm x 10mm with red spots towards the base. Flowers are green with variable crimson striping. Sepals are 20-30mm long with yellowish clubs and petals are shorter, the white labellum has green lateral lobes and a maroon apex. Flowers from August to October. 
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, a refigerator or in liquid nitrogen.
Seed viability:
For the NVC South East Orchid Project one population consisting of more than X individuals in total was recorded from Nangwarry Native Forest Reserve. Approximately 57,000 seeds (0.04g) were banked from this observed population. Seed viability was low at 31%.