Seeds of South Australia
Pterostylis nana (Orchidaceae)
Dwarf Greenhood
List of species for Pterostylis
Display more images
Click on an image to enlarge it
Herbarium regions:
Nullarbor, Gairdner-Torrens, Flinders Ranges, Eyre Peninsula, Northern Lofty, Murray, Yorke Peninsula, Southern Lofty, Kangaroo Island, South Eastern
NRM region:
Adelaide and Mount Lofty Ranges
IBRA regions
Mount Gambier (SVP02)Southern Volcanic Plain
 Least Concern   [now known as Linguina nana]
Bridgewater (NCP01)Naracoorte Coastal Plain
 Least Concern   [now known as Linguina nana]
Glenelg Plain (NCP02) 
 Least Concern   [now known as Linguina nana]
Lucindale (NCP03) 
 Least Concern   [now known as Linguina nana]
Tintinara (NCP04) 
 Least Concern   [now known as Linguina nana]
Broughton (FLB02)Flinders Lofty Block
 Endangered   (IUCN: EN A1ac)   (Definite Decline)   [Clare region. Would have occurred much larger area]
Southern Flinders (FLB04) 
 Least Concern   (Probable Decline)   [Least concern. Probable decline.]
Central Flinders (FLB06) 
 Rare   (IUCN: RA d(i,ii))   [around Wilpena; edge of range; likes granite rocks; more tolerant of goats]
Southern Yorke (EYB01)Eyre Yorke Block
 Rare   (IUCN: RA ab)   (Definite Decline)   [Taxonomy. 3 species in N&Y. Minlaton.]
St Vincent (EYB02) 
 Vulnerable   (IUCN: VU A1ac)   (Definite Decline)   [Records missing from Agery, Halbury, Rocky Bend. <50% decline]
Eyre Hills (EYB03) 
 Near Threatened   (Probable Decline)
Talia (EYB04) 
 Near Threatened   (Probable Decline)
Eyre Mallee (EYB05) 
 Near Threatened   (Probable Decline)
Murray Mallee (MDD02)Murray Darling Depression
 Least Concern   [taxonomic issues, split into 5or6 spp, some EN]
Murray Lakes and Coorong (MDD03) 
 Least Concern   [now known as Linguina nana]
Lowan Mallee (MDD04) 
 Least Concern
Wimmera (MDD05) 
 Least Concern   [now known as Linguina nana]
Myall Plains (GAW01)Gawler
 Near Threatened   (Probable Decline)
Gawler Volcanics (GAW02) 
 Near Threatened   (Probable Decline)
Yalata (NUL03)Nullarbor
 Data Deficient
IBRA regions
Mount Gambier (SVP02)Southern Volcanic PlainLeast Concern
  [now known as Linguina nana]
4 of 4 subregionsNaracoorte Coastal PlainLeast Concern
3 of 6 subregionsFlinders Lofty BlockLeast Concern
, Rare
, Endangered
5 of 5 subregionsEyre Yorke BlockNear Threatened
, Rare
, Vulnerable
4 of 6 subregionsMurray Darling DepressionLeast Concern
2 of 8 subregionsGawlerNear Threatened
Yalata (NUL03)NullarborData Deficient
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 Pterostylis]
Name derivation:
Pterostylis from the Greek ‘pteron’ meaning a wing and ‘stylis’ meaning a style or column; referring to the prominent wings found at the top of the column in all species.
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.