Plants of
South Australia
Ixodia achillaeoides ssp. alata
Compositae
Winged Ixodia
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Botanical art

Kath Alcock paintings: 7.

Etymology

Ixodia, from the Greek 'ixodes', meaning sticky, (from the Greek 'ixos' meaning birdlime), referring to the plant being sticky. Achillaeoides, means resembling the genus Achillea, (named after the Greek warrior Achilleios, who reputedly used plants from the genus to patch-up wounds). Alata, from the Latin 'alatus ', meaning winged, referring to the winged stems.

Distribution and status

Found in the southern part of South Australia growing on a wide range of soils in forest, woodland and scrub communities. Also found in Victoria. Native. Common in South Australia. Common in Victoria. More common following a fire.
Herbarium regions: Eyre Peninsula, Northern Lofty, Murray, Yorke Peninsula, Southern Lofty, Kangaroo Island, South Eastern
NRM regions: Adelaide and Mount Lofty Ranges, Eyre Peninsula, Kangaroo Island, Northern and Yorke, South Australian Murray-Darling Basin, South East
AVH map: SA distribution map (external link)

Plant description

Erect shrub or undershrub to 2 m high; stems with wings to 2 mm wide extending from the leaf bases; aromatic and viscid. Leaves narrowly lanceolate to linear, to 90 mm long and 9 mm wide. Flower-heads terminal open clusters with white papery flowers. Flowering between October and February. This subspecies differs from the other two subspecies by having linear to lanceolate leaves, (oblanceolate for I. achillaeoides ssp. achillaeoides and obovate for I. achillaeoides ssp. arenicola) and found mainly away from the coast, (coastal cliffs and exposed coastal sand dunes on the bottom of the Eyre and Yorke Peninsulas and Kangaroo Island for I. achillaeoides ssp. achillaeoides and coastal only in the lower South-east for I. achillaeoides ssp. arenicola). Fruits are white to greyish-brown papery head. Seeds are dark-brown oblong seed to 1.2 mm long and 0.5 mm wide, covered with short hairs. Seed embryo type is spathulate.

Seed collection and propagation

Collect seeds between December and April. Collect whole heads that are drying off and turning greyish- brown or collect just the seeds by plucking off. Mature seeds are easily removed. Place the heads in a tray for a week to dry. Then pluck the seeds from the head with your finders. Viable seeds will be fat and brown. 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.

Seeds stored:
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LocationNo. of seeds
(weight grams)
Number
of plants
Date
collected
Collection number
Collection location
Date
stored
% ViabilityStorage
temperature
BGA56,500 (3.86 g)100+1-Apr-2018KHB991
Eyre Peninsula
30-Jun-201890%-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.