Seeds of South Australia
Phyllanthus erwinii (Euphorbiaceae)
Erwin's Spurge
List of species for Phyllanthus
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Seed collecting:
April to November
Herbarium region:
North Western
NRM region:
Alinytjara Wilurara
AVH map:
Australian distribution map (external link)
SA Census:
Census of South Australian plants (external link)     [genus Phyllanthus]
Name derivation:
Phyllanthus from the Greek 'phyllon' meaning a leaf and 'anthos' meaning a flower; referring to some foreign species where the flowers grow on the edges of dilated leaf-like branchlets. Erwinii named after Erwin Gauba (1891-1964), an Australian botanist who first recognised this entity at the rank of variety.
Found in the far north-western part of South Australia, growing in grassy woodlands, arid shrublands and tussock grasslands on rocky ground along ephemeral watercourses, in sandy and clayey soils.  Also found in Western Australia and the Northern Territory.
Native. Rare in South Australia. Common in the other states.
Plant description:
Monoecious perennial herb to 20 cm tall with rounded stems which are glabrous or scabrous in longitudinal rows up the stem. Leaves alternate, in opposite pair, plane to concave, to 23.5 mm long and 7-6 mm wide, obovate to oblanceolate, grey-green, occasionally glabrous, more commonly scabrous. Male inflorescence in clusters with 1-3 white, sometimes tinged red flowers. Female inflorescence solitary, scattered among males. Flowering between April to October.
Fruit type:
Green turning grey with age, depressed ellipsoid capsule to 1.6 mm long 3.2 mm wide, glabrous, grooved.
Seed type:
Brown sectoroid seed to 1 mm long and 1 mm wide, with a wrinkled surface. 
Embryo type:
Spatulate fully developed.
Seed collecting:
Collect individually or break off short fruiting stems with fat capsules with hard dark seed. Green capsules can be collected if the seeds are dark and hard.
Seed cleaning:
Place the capsules in a tray and leave to dry for one to two weeks. Then gently rub the capsules with a rubber bung to dislodge the seeds. Use a sieves 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.