Plants of
South Australia
Calytrix glaberrima
Myrtaceae
Smooth Fringe-myrtle
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Near threatened
Rare
Vulnerable
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Extinct
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Adelaide
Arkaroola
Ceduna
Coober Pedy
Hawker
Innamincka
Marla
Marree
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Oodnadatta
Renmark
Wudinna
Keith
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Botanical art

Kath Alcock paintings: 5.

Etymology

Calytrix from the Greek 'kalyx' meaning calyx and 'thrix' meaning hair, referring to the awns on the sepals. Glaberrima means most glabrous, referring to the species being devoid of hairs.

Distribution and status

Endemic to South Australia and found on Kangaroo Island and the southern Mount Lofty Ranges, growing in heath. Native. Uncommon in South Australia.
Herbarium regions: Southern Lofty, Kangaroo Island
NRM regions: Adelaide and Mount Lofty Ranges, Kangaroo Island
AVH map: SA distribution map (external link)

Plant description

Small woody shrub to 1 m tall with tiny, smooth leaves to 5 mm long and 1.5 mm wide. Inflorescence in small leafy spike, with white and pink tinged flowers. Flowering in spring and summer. Fruits are pale brown cone-shaped fruit with fan-like wings around the tip. Seeds are a small ovoid seed sits in the cone section of the fruit. Seed embryo type is spatulate fully developed.

Seed collection and propagation

Collect seeds between December and March. Collect heads by hand when they are brown and slightly fat at the base. This should contain small hard seed. No cleaning is required if only the fruits were collected. If collected with other material, 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 set and seed viability can be low. From one collection, the seed viability was low, at 15%.

Seeds stored:
  Hide
LocationNo. of seeds
(weight grams)
Number
of plants
Date
collected
Collection number
Collection location
Date
stored
% ViabilityStorage
temperature
BGA 
MSB
48,000 (19.05 g)
9,500 (5.56 g)
50+18-Jan-2006DJD345
Southern Lofty
7-Aug-200615%-18°C
 
MSB

18,600 (13.51 g)
30-4013-Nov-2006DJD659
Kangaroo Island
BGA71,500 (44.940 g)2007-Jan-2020JRG730
Southern Lofty
24-Jun-202085%-18°C, -80°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.