Seeds of South Australia
Wurmbea decumbens (Liliaceae)
Trailing Star-lily
List of species for Wurmbea
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Seed collecting:
August to September
Herbarium regions:
Eyre Peninsula, Kangaroo Island
NRM regions:
Eyre Peninsula, Kangaroo Island
IBRA regions
Kangaroo Island (KAN01)Kanmantoo
 Vulnerable   (IUCN: VU D2)   [2 records, Kingscote pop not seen since 2006]
Eyre Hills (EYB03)Eyre Yorke Block
 Rare   (IUCN: RA d(ii))
Talia (EYB04) 
 Rare   (IUCN: RA d(ii))
Eyre Mallee (EYB05) 
 Rare   (IUCN: RA d(ii))
Myall Plains (GAW01)Gawler
 Rare   (IUCN: RA d(ii))
Gawler Volcanics (GAW02) 
 Rare   (IUCN: RA d(ii))
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 Wurmbea]
Name derivation:
Wurmbea name after Friedrick Wilhelm von Wurmb, merchant and botanist in 18th century Batavia (Jakarta). Decumbens from Latin meaning prostrate on the earth with the tips turning up; referring to the decumbent leaves and flower spike.
Distribution:
Endemic to South Australia and found on the Eyre Peninsula and Kangaroo Island, growing on rocky hills on sheltered southern slopes at the base of rocks.
Status:
Native. Rare in South Australia.
Plant description:
Decumbent herb to 8 cm high. Leaves 3,, lower two basal, decumbent, narrow, pale green, to 20 cm long and 5 mm wide, not dilated at the base, upper leaf ovate, short. Inflorescence short spike, shorter than the leaves, at first erect but becoming decumbent soon after, with one rarely 2 small white flower, turning purple with age. Flowering May to July.
Fruit type:
Large brown elongated capsule to 2 cm long with many seeds.
Seed type:
Orange brown globular seed to 1.5 mm diameter.
Embryo type:
Linear under-developed.
Seed collecting:
Collect mature capsules, those turning pale straw colour and containing hard brown seeds.
Seed cleaning:
Place the capsules in a tray and leave to dry for 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.
Seed viability:
From three collections, the seed viability were high, ranging from 95% to 100%.
Seeds stored:
LocationNo. of seeds
(weight grams)
Number
of plants
Date
collected
Collection number
Collection location
Date
stored
% ViabilityStorage
temperature
BGA 
MSB
4500 (9.74 g)
4600 (10 g)
100+5-Sep-2006DJD511
Eyre Peninsula
1-Aug-200795%+5°C, -18°C
BGA1900 (3.5 g)100+30-Aug-2007MJT71
Eyre Peninsula
20-Jul-2009100%+5°C, -18°C
BGA1900 (3.5 g)50+30-Aug-2007MJT71
Eyre 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.