Plants of
South Australia
Senecio euclaensis
Compositae
Eucla Grounsel
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Etymology

Senecio from the Latin 'senex' meaning an old man; referring to the white pappus attached to the seed. Euclaensis alluding to the distribution of this species, around Eucla in Western Australia.

Distribution and status

Found on the cliffs near Border Village in South Australia. Also found in Western Australia. Native. Rare in South Australia. Rare in Western Australia.
Herbarium region: Nullarbor
NRM region: Alinytjara Wilurara
AVH map: SA distribution map (external link)

Plant description

Perrenial shrub to 1.5 m high, glabrous, or sometimes sparsely and transiently cobwebby. Leaves fleshy. Mid-stem/mid-branch leaves narrow-elliptic or oblanceolate, to 10 cm long, with length:width ratio c. 2.5–4, deeply lobate to subpinnatisect; major divisions 2–5 per side, strongly antrorse, triangular, oblong, narrow-oblong or obovate; base attenuate, petiole-like; margin ± entire or few-denticulate or dentate, revolute; surfaces ± glabrous; reticulate venation inconspicuous. Flower-heads of 60 dense clusters, with small rayless daisy flowers. Fruits are pale brown vase-shaped daisy-head. Seeds are orange-brown oblong seed to 3 mm long and 1 mm wide, covered in white hairs and with numerous deep striations, pappus not persisting. Seed embryo type is spatulate fully developed.

Seed collection and propagation

Collect heads that are fat, hard and turning brown by picking off the whole heads. Place the heads in a tray for a week to dry. Then rub the heads gently with your hands or a rubber bung to dislodge the seeds. Viable seeds will be fat and hard. 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
BGA 
MSB
1,600 (1.27 g)
1,600 (1.27 g)
304-Nov-2009DJD1528
Nullarbor
1-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.