Seeds of South Australia
Hypericum gramineum (Guttiferae)
Small St John's Wort
List of species for Hypericum
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Seed collecting:
June to January
Herbarium regions:
North Western, Lake Eyre, Flinders Ranges, Eyre Peninsula, Northern Lofty, Murray, Southern Lofty, Kangaroo Island, South Eastern
NRM regions:
Adelaide and Mount Lofty Ranges, Alinytjara Wilurara, 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
 Near Threatened
Bridgewater (NCP01)Naracoorte Coastal Plain
 Rare   (IUCN: RA d(ii))   (Probable Decline)   [edge of range; Vic spp.]
Glenelg Plain (NCP02) 
 Least Concern
Lucindale (NCP03) 
 Near Threatened
Kangaroo Island (KAN01)Kanmantoo
 Rare   (IUCN: RA d(ii))   [need more surveys]
Fleurieu (KAN02) 
 Least Concern   [possibly two varieties]
Mount Lofty Ranges (FLB01)Flinders Lofty Block
 Least Concern   [possibly two varieties]
Broughton (FLB02) 
 Rare   (IUCN: RA d(i,ii))   (Probable Decline)   [Records missing]
Southern Flinders (FLB04) 
 Rare   (IUCN: RA d(i,ii))   (Probable Decline)   [Records missing]
Northern Flinders (FLB05) 
 Rare   (IUCN: RA d(ii))   [could be split into 2 spp]
Central Flinders (FLB06) 
 Rare   (IUCN: RA d(ii))   [could be split into 2 spp]
Eyre Hills (EYB03)Eyre Yorke Block
 Rare   (IUCN: RA d(i,ii))   (Probable Decline)
Murray Mallee (MDD02)Murray Darling Depression
 Vulnerable   (IUCN: VU B2ab(i,ii,iii))   (Probable Decline)   [ephemeral; dependent on floods]
Lowan Mallee (MDD04) 
 Rare   (IUCN: RA d(i,ii))   [ephemeral; dependent on floods]
Wimmera (MDD05) 
 Rare   (IUCN: RA d(i,ii))
Braemer (MDD07) 
 Rare   (IUCN: RA d(i,ii))
Breakaways (STP01)Stony Plains
 Rare   (IUCN: RA d(ii))   [could be split into 2 spp]
Oodnadatta (STP02) 
 Rare   (IUCN: RA d(ii))   [could be split into 2 spp]
Lake Pure (CHC07)Channel Country
 Rare   (IUCN: RA d(ii))   [could be split into 2 spp]
Watarru (CER02)Central Ranges
 Rare   (IUCN: RA d(ii))   [could be split into 2 spp]
Everard Block (CER03) 
 Rare   (IUCN: RA d(ii))   [could be split into 2 spp]
IBRA regions
DISPLAY ALL
Mount Gambier (SVP02)Southern Volcanic PlainNear Threatened
3 of 4 subregionsNaracoorte Coastal PlainLeast Concern
, Near Threatened
, Rare
2 of 2 subregionsKanmantooLeast Concern
, Rare
5 of 6 subregionsFlinders Lofty BlockLeast Concern
, Rare
Eyre Hills (EYB03)Eyre Yorke BlockRare
  (IUCN: RA d(i,ii))   (Probable Decline)
4 of 6 subregionsMurray Darling DepressionRare
, Vulnerable
2 of 7 subregionsStony PlainsRare
Lake Pure (CHC07)Channel CountryRare
  (IUCN: RA d(ii))   [could be split into 2 spp]
2 of 3 subregionsCentral RangesRare
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 Hypericum]
Name derivation:
Hypericum from the Greek 'hyper' meaning above and 'icon' meaning image; referring to plants from the genus being hung above religious figures to ward off evil spirits. Gramineum from the Latin 'gramen' meaning grass; referring to the grass-like stems. 
Distribution:
Found mainly in the southern Part of South Australia with scattered records across the northern part, growing in sandy soils along rivers, creeks and flood-plain. Also found in all states.
Status:
Native. Common in South Australia. Common in the other states.
Plant description:
Erect perennial herb to 40 cm high, often rhizomatous and shortly creeping at base, stems with 4-ridges, internodes usually longer than leaves. Leaves ovate to narrowly elliptic or oblong, to 20 mm long and 7 mm wide, often glaucous, at least the uppermost erect and stem-clasping, margins usually recurved. Flowers in leafy clusters with orange-yellow, not black-dotted petals. Flowering between October to March.
Fruit type:
Brown ovoid capsule to 8 mm long.
Seed type:
Brown oblong seed to 0.6 mm long and 0.3 mm wide, surface tuberculated.
Seed collecting:
Collect maturing capsule those turning pale brown with brown seeds inside.
Seed cleaning:
Place the capsules in a tray and leave to dry for a week. Then rub the dried capsules gently by hand to dislodge the seeds. Use a sieve to separate the unwanted material. Be careful as the seeds are very small. 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 80% to 100%.
Seeds stored:
LocationNo. of seeds
(weight grams)
Number
of plants
Date
collected
Collection number
Collection location
Date
stored
% ViabilityStorage
temperature
BGA 
MSB
4000 (0.2691 g)
4000 (0.2691 g)
30-4031-Jan-2006HPV2962
South Eastern
1-Aug-2006100%-18°C
BGA119800 (2.78 g)203-Jan-2007RJB70979D
Murray
1-Aug-200785%-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.