Seeds of South Australia
Drosera praefolia (Droseraceae)
Early Sundew
List of species for Drosera
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Seed collecting:
July to August
Herbarium regions:
Southern Lofty, Kangaroo Island
NRM regions:
Adelaide and Mount Lofty Ranges, Kangaroo Island
IBRA regions
Kangaroo Island (KAN01)Kanmantoo
 Rare   (IUCN: RA d(ii))
Fleurieu (KAN02) 
 Vulnerable   (IUCN: VU B2ab(i,ii,iii); D2)   (Probable Decline)   [restricted habitat; pops in Deep Ck, Cape Jervis; weeds a threat]
Mount Lofty Ranges (FLB01)Flinders Lofty Block
 Vulnerable   (IUCN: VU B2ab(i,ii,iii); D2)   (Probable Decline)   [restricted habitat; pop in Mt Bold declining; weeds a threat]
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. Praefolia from the Latin 'prae' meaning before and 'folium' meaning leaf; alluding to the fact that the flowers appear on a terminal inflorescence before the leaves.
Distribution:
Endemic to South Australia and found on Kangaroo Island and the southern Mount Lofty Ranges.
Status:
Native. Rare in South Australia.
Plant description:
Small herb with a white stem tuber enclosed by multi-layered black sheath. Leaves annual in a flat rosette, green or red, obovate to 16 mm long and 12 mm wide, margins involute when young. Inflorescence emerging before rosette, with 1–10 flowers, decumbent underneath the rosette foliage in fruit, sepals to 5 mm long and 1.5 mm wide, petals cuneate, truncate to shallowly notched to 8 mm by 4 mm, white. Flowering between March and July.
Fruit type:
Red-brown ovoid to globose capsule to 8 mm diameter.
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.