Seeds of South Australia
Austrostipa trichophylla (Gramineae)
Fine-leaf Spear-grass
List of species for Austrostipa
Click on an image to enlarge it
Seed collecting:
October to December
Herbarium regions:
North Western, Lake Eyre, Gairdner-Torrens, Flinders Ranges, Eastern, Eyre Peninsula, Northern Lofty, Murray, Yorke Peninsula, Southern Lofty, South Eastern
NRM regions:
Adelaide and Mount Lofty Ranges, Alinytjara Wilurara, Eyre Peninsula, Northern and Yorke, South Australian Arid Lands, South Australian Murray-Darling Basin, South East
IBRA regions
SUMMARY
Bridgewater (NCP01)Naracoorte Coastal Plain
 Vulnerable   (IUCN: VU B2ab(i,ii,iii))   (Probable Decline)   [rarely seen]
Lucindale (NCP03) 
 Vulnerable   (IUCN: VU B2ab(i,ii,iii))   (Probable Decline)   [rarely seen]
Fleurieu (KAN02)Kanmantoo
 Rare   (IUCN: RA d(i,ii))   [could be VU]
Mount Lofty Ranges (FLB01)Flinders Lofty Block
 Rare   (IUCN: RA d(ii))
Broughton (FLB02) 
 Least Concern
Olary Spur (FLB03) 
 Rare   (IUCN: RA d(ii))
Southern Flinders (FLB04) 
 Least Concern
Northern Flinders (FLB05) 
 Least Concern
Central Flinders (FLB06) 
 Least Concern
St Vincent (EYB02)Eyre Yorke Block
 Rare   (IUCN: RA d(ii))
Eyre Hills (EYB03) 
 Least Concern
Talia (EYB04) 
 Least Concern
Eyre Mallee (EYB05) 
 Least Concern
South Olary Plain (MDD01)Murray Darling Depression
 Data Deficient   [not evaluated]
Murray Mallee (MDD02) 
 Rare   (IUCN: RA d(i))
Murray Lakes and Coorong (MDD03) 
 Vulnerable   (IUCN: VU B2ab(i,ii,iii))   (Probable Decline)   [rarely seen]
Lowan Mallee (MDD04) 
 Rare   (IUCN: RA d(i))
Murray Scroll Belt (RIV06)Riverina
 Rare   (IUCN: RA d(i,ii))
Myall Plains (GAW01)Gawler
 Rare   (IUCN: RA d(ii))
Gawler Volcanics (GAW02) 
 Rare   (IUCN: RA d(ii))
Gawler Lakes (GAW03) 
 Rare   (IUCN: RA d(ii))
Maralinga (GVD03)Great Victoria Desert
 Rare   (IUCN: RA d(ii))   [check record]
Yellabinna (GVD06) 
 Rare   (IUCN: RA d(ii))
Barrier Range (BHC01)Broken Hill Complex
 Rare   (IUCN: RA d(ii))
Murnpeowie (STP03)Stony Plains
 Rare   (IUCN: RA d(i,ii))   [edge of range]
Mann-Musgrave Block (CER01)Central Ranges
 Near Threatened
Watarru (CER02) 
 Near Threatened
Everard Block (CER03) 
 Near Threatened
Tieyon (FIN03)Finke
 Near Threatened
IBRA regions
DISPLAY ALL
2 of 4 subregionsNaracoorte Coastal PlainVulnerable
Fleurieu (KAN02)KanmantooRare
  (IUCN: RA d(i,ii))   [could be VU]
6 of 6 subregionsFlinders Lofty BlockLeast Concern
, Rare
4 of 5 subregionsEyre Yorke BlockLeast Concern
, Rare
4 of 6 subregionsMurray Darling DepressionRare
, Vulnerable
, Data Deficient
Murray Scroll Belt (RIV06)RiverinaRare
  (IUCN: RA d(i,ii))
3 of 8 subregionsGawlerRare
2 of 4 subregionsGreat Victoria DesertRare
Barrier Range (BHC01)Broken Hill ComplexRare
  (IUCN: RA d(ii))
Murnpeowie (STP03)Stony PlainsRare
  (IUCN: RA d(i,ii))   [edge of range]
3 of 3 subregionsCentral RangesNear Threatened
Tieyon (FIN03)FinkeNear Threatened
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 Austrostipa]
Name derivation:
Austrostipa from the Latin 'auster' meaning south and the genus Stipa, referring to the genus being allied to Stipa but restricted to Australia. Trichophylla from the Greek 'thrix' or 'trichos' meaning hair and 'phyllon' meaning a leaf, referring to its hair-like leaf-blades.
Distribution:
Found in the north-western and south-eastern part of South Australia, growing on sandy soils associated with limestone in mallee, shrubland and open woodland. Also found in Western Australia, Northern Territory, New South Wales and Victoria.
Status:
Native. Common in South Australia. Uncommon in the Northern Territory, New South Wales and Victoria. Common in Western Australia..
Plant description:
Tufted perennial grass to 50 cm high with erect unbranched culms and exserted, glabrous nodes but shortly pubescent immediately below. Leaf-blades fine, tightly inrolled to 20 cm long and 0.6 mm diameter, with dense long spreading hairs to 0.5 mm; leaves usually flexuose;. Inflorescence a sparse panicle to 20 cm long, with unequal glumes to 14 mm long. Flowering between September and November.

Key to this species: awn falcate (curved bristle at right angle to the column); lemma narrow and needle-like; column pubescent to 1 mm; glumes unequal; leaves fine 0.3-0.6 mm, inrolled with dense long spreading hairs 0.5 mm; leaves usually flexuose; sheaths 2-5 mm wide, pilose.

Fruit type:
Golden-brown linear-elliptic lemma 6.5 mm long wtih a granular to scabrous surface and covered in white hairs, sparse near apex; callus to 2.5 mm long; awn falcate to 60 mm long with column pubescent to 10 mm long.
Seed type:
Yellow-brown narrow-ellipsoid grain to 3.5 mm long within the lemma.
Embryo type:
Lateral.
Seed collecting:
Use your hands to gently strip the seeds (lemma) off the mature fruiting spike, those that are turning brown. Mature seeds will come off easily compare to the immature seeds that remain on the spike. Alternatively, you can break off the whole fruit spike to allow some of the seeds to mature further.
Seed cleaning:
Place the seeds/spike in a tray and leave to dry for two weeks. No further cleaning is required if only seed collected. If seed spikes collected, use hand to strip off the mature 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.
Seed viability:
Viability of grass seeds could be very variable, depending on time of seed collections and seasonal conditions.