Seeds of South Australia
Drosera pygmaea (Droseraceae)
Tiny Sundew
List of species for Drosera
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Seed collecting:
November to December
Herbarium regions:
Southern Lofty, Kangaroo Island, South Eastern
NRM regions:
Adelaide and Mount Lofty Ranges, Kangaroo Island, South East
IBRA regions
Mount Gambier (SVP02)Southern Volcanic Plain
 Near Threatened   [easily missed]
Bridgewater (NCP01)Naracoorte Coastal Plain
 Least Concern   [needs damp conditions]
Glenelg Plain (NCP02) 
 Least Concern
Lucindale (NCP03) 
 Least Concern
Tintinara (NCP04) 
 Least Concern
Kangaroo Island (KAN01)Kanmantoo
 Least Concern
Fleurieu (KAN02) 
 Least Concern
Mount Lofty Ranges (FLB01)Flinders Lofty Block
 Near Threatened
Eyre Hills (EYB03)Eyre Yorke Block
 Vulnerable   (IUCN: VU B2ab(i,ii,iii))   (Probable Decline)   [limited habitat, weeds, climate change - threats]
Murray Mallee (MDD02)Murray Darling Depression
 Vulnerable   (IUCN: VU B2ab(i,ii,iii); D2)   (Probable Decline)   [highly restricted habitat; edge of range]
Lowan Mallee (MDD04) 
 Rare   (IUCN: RA d(i,ii))   [probable decline]
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 Drosera]
SA Flora:
Flora of South Australia Edition 5
Name derivation:
Drosera from the Greek 'droseros' meaning dewy; alluding to the glistening of the glandular leaf laminae. Pygmaea from Latin meaning small; referring to the species habit.
Distribution:
Found on the bottom of the Eyre Peninsula, southern Mount Lofty Ranges, Kangaroo Island and thne lower South-east, growing in seasonally damp, swampy environments on a wide range of soils and vegetation types. Also found in western Australia, Queensland, New South Wales, Victoria and Tasmania.
Status:
Native. Common in South Australia. Rare inn Western Australia. Common in the other states.
Plant description:
Perennial colony-forming herb with fibrous roots, generally evergreen, sometimes dying back to a dormant stipule-covered bud to 3.5 mm diameter over summer. Stem short, enclosed by persistent leaf bases. Leaves many in a convex rosette, orbicular, peltate, attached near the margin, to 2 mm diameter. Central leaves in winter modified to form deciduous propagules (gemmae). Inflorescence very slender, glabrous with 1 flower, sepals oblong to elliptic, glabrous, petals elliptic-spathulate, white. Flowering between September to January.
Fruit type:
Brown ovoid capsule to 2 mm diameter, erect.
Seed collecting:
Collect mature capsules, those that are fat, hard, turning brown and contain black seeds inside.
Seed cleaning:
Place the capsules in a tray and leave to dry for one to two weeks. Then rub the capsules gently by hand to dislodge the seeds. 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.