Plants of
South Australia
Carinavalva glauca
Cruciferae
Beautiful Cress
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Regional Species Conservation Assessments per IBRA subregion.
Least concern
Near threatened
Rare
Vulnerable
Endangered
Critically endangered
Extinct
Data deficient
Adelaide
Arkaroola
Ceduna
Coober Pedy
Hawker
Innamincka
Marla
Marree
Mount Gambier
Oodnadatta
Renmark
Wudinna
Keith
Yunta
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Etymology

Carinavalva from the Latin 'carina' meaning keel and 'valva' meaning a valve; referring to the keeled valves of the silicula. Glauca from the Latin 'glaucus' meaning bluish; alluding to the appearance of the plant or the colour of the flowers.

Distribution and status

Endemic to South Australia and found in the north and north-east parts of the state, growing in flood out areas. Native. Rare in South Australia.
Herbarium region: Lake Eyre
NRM region: South Australian Arid Lands
AVH map: SA distribution map (external link)

Plant description

Erect annual herb to 30 cm tall, glaucous and glabrous with leaves to 6 cm long, pinnatisect, with 3-6 pairs of pinnae. Sepals to 5 mm long and petals narrow-linear to lanceolate, to 15 mm long, green-yellow. Fruits are pale brown, flattened ovoid capsule to 11 mm long and 6 mm wide. Seeds are small orange-brown flat reniform seeds to 1 mm long and 0.7 mm wide. Seed embryo type is bent.

Seed collection and propagation

Collect seeds between August and October. Collect maturing capsules those turning pale brown with orange seeds inside. Be gentle with the pods as they split open easily. Place the capsules in a tray and cover with paper to prevent seeds from popping out and leave to dry for a week. Then rub the dried pods 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. From two collections, the seed viability were high, at 100%. This species has physiological dormancy that need to be overcome for the seed to germinate.

Seeds stored:
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LocationNo. of seeds
(weight grams)
Number
of plants
Date
collected
Collection number
Collection location
Date
stored
% ViabilityStorage
temperature
BGA 
MSB
6,000 (1.21 g)
6,000 (1.21 g)
50+25-Sep-2008DJD1114
Lake Eyre
20-Jul-2009100%-18°C
BGA226,300 (37.57 g)200+6-Sep-2013MJT446
Lake Eyre
24-Mar-2015100%-18°C
BGA122,100 (20.27 g)6-Sep-2013DJD2712
Lake Eyre
24-Mar-2015100%-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.
Germination table:
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