Seeds of South Australia
Leptorhynchos squamatus ssp. squamatus (Compositae)
Scaly Buttons
List of species for Leptorhynchos
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Seed collecting:
November to January
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 Arid Lands, South Australian Murray-Darling Basin, South East
IBRA regions
SUMMARY
Mount Gambier (SVP02)Southern Volcanic Plain
 Vulnerable   (IUCN: VU D2)   [Tantanoola Caves]
Bridgewater (NCP01)Naracoorte Coastal Plain
 Vulnerable   (IUCN: VU D2)   [in Tilley Swamp]
Glenelg Plain (NCP02) 
 Rare   (IUCN: RA d(ii))   [no AD records, needs more survey work]
Lucindale (NCP03) 
 Least Concern   [24 rec's]
Tintinara (NCP04) 
 Rare   (IUCN: RA d(ii))   (Probable Decline)
Kangaroo Island (KAN01)Kanmantoo
 Rare   (IUCN: RA d(ii))   [grassy ecosystem sp; limited habitat]
Fleurieu (KAN02) 
 Least Concern   [grassy ecosystem sp]
Mount Lofty Ranges (FLB01)Flinders Lofty Block
 Least Concern   [grassy ecosystem sp]
Broughton (FLB02) 
 Least Concern
Olary Spur (FLB03) 
 Least Concern   [Limited range]
Southern Flinders (FLB04) 
 Least Concern
Southern Yorke (EYB01)Eyre Yorke Block
 Least Concern
St Vincent (EYB02) 
 Rare   (IUCN: RA a)   (Probable Decline)
Eyre Hills (EYB03) 
 Least Concern   (Probable Decline)   [clearance a threat]
Talia (EYB04) 
 Rare   (IUCN: RA d(i,ii))   (Probable Decline)
Murray Lakes and Coorong (MDD03)Murray Darling Depression
 Vulnerable   (IUCN: VU D2)   [needs damp fertile soils; limited habitat in HA's]
Lowan Mallee (MDD04) 
 Near Threatened
Wimmera (MDD05) 
 Rare   (IUCN: RA d(ii))   (Probable Decline)
IBRA regions
DISPLAY ALL
Mount Gambier (SVP02)Southern Volcanic PlainVulnerable
  (IUCN: VU D2)   [Tantanoola Caves]
4 of 4 subregionsNaracoorte Coastal PlainLeast Concern
, Rare
, Vulnerable
2 of 2 subregionsKanmantooLeast Concern
, Rare
4 of 6 subregionsFlinders Lofty BlockLeast Concern
4 of 5 subregionsEyre Yorke BlockLeast Concern
, Rare
3 of 6 subregionsMurray Darling DepressionNear Threatened
, Rare
, Vulnerable
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 Leptorhynchos]
Name derivation:
Leptorhynchos from the Greek 'leptos' meaning slender and 'rhynchos' meaning a snout; alluding to the beaked achenes of some species. Squamatus from Latin 'squama' meaning scale. 
Distribution:
Found on Eyre and Yorke Peninsulas, Flinders Ranges, Mount Lofty Ranges, Kangaroo Island and the south-east in South Australia, growing in a variety of situations, from sclerophyll forest to mallee and scrub, on clay-loam or sandy soils. Also found in New South Wales, Victoria and Tasmania.
Status:
Native. Common in South Australia. Common in the other states.
Plant description:
Perennial herb to 40 cm tall, with tufted roots and numerous ascending stems loosely enveloped in fibrous leaf bases. Stems and branches moderately to sparsely hairy, with broad-based slender hairs. Leaves oblanceolate to linear, with revolute margins, acuminate to apiculate, sessile at the base, becoming sheathing below, to 3 cm long and 5 mm wide, on the upper side moderately to sparsely hairy, underside closely white-woolly-tomentose. Flower-heads terminal on stalk to 15 cm long; involucral bracts extending down peduncle, mostly scarious, colourless or brown-tinged; innermost strongly reflexed at maturity. Florets yellow, female florets few or absent. Flowering between September and December.
Fruit type:
White fluffy daisy-head.
Seed type:
Brown oblong-eliptical seed to 3 mm long and 0.5 mm wide, covered in fine tubercules and with long feathered-like papus at one end.
Embryo type:
Spatulate fully developed.
Seed collecting:
Collect heads that are fluffy. Either pick off the whole heads or use your finger and pull off the seeds from the head. Mature seeds will come off easily.
Seed cleaning:
Place the heads in a tray for a week to dry. No cleaning is required if only pure seeds are collected. If heads are collected, then rub the heads gently with your hands to dislodge the seeds. Viable seeds will be fat and hard. Use a sieve to separate the unwanted material. 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:
From three collections, the seed viability were high, ranging from 85% to 100%.
Seeds stored:
LocationNo. of seeds
(weight grams)
Number
of plants
Date
collected
Collection number
Collection location
Date
stored
% ViabilityStorage
temperature
BGA1800 (0.25 g)5011-Nov-2009TST876
Yorke Peninsula
Jun-2010100%-18°C
Location: BGA — the seeds are stored at the Adelaide Botanic Gardens, MSB — the seeds are stored at the Millennium Seed Bank, Kew, England.
Number of plants: This is the number of plants from which the seeds were collected.
Collection location: The Herbarium of South Australia's region name.
% Viability: Percentage of filled healthy seeds determined by a cut test or x-ray.