Plants of
South Australia
Dicrastylis gilesii
Chloanthaceae
Giles' Sand-sage
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Distribution by Herbarium region
Adelaide
Arkaroola
Ceduna
Coober Pedy
Hawker
Innamincka
Marla
Marree
Mount Gambier
Oodnadatta
Renmark
Wudinna
Keith
Yunta

Etymology

Dicrastylis from the Greek 'dicroos' meaning forked and 'stylos' meaning a style, alluding to the deeply 2-branched style. Gilesii named after William Ernest Powell Giles (1835-1897), an English born explorer and botanical collector in central Australia.

Distribution and status

Found in the far north-western corner in South Australia growing on rocky slopes & hillsides. Also found in Western Australia and Northern Territory. Native. Rare in South Australia. Common in the other States.
Herbarium region: North Western
NRM region: Alinytjara Wilurara
AVH map: SA distribution map (external link)

Plant description

Tomentose shrub to 2 m high with erect branching, chiefly near the base stems; densely covered in greyish hairs; young branchlets with purplish or greenish-grey hairs. Leaves decussate, petiolate, elliptic-ovate, lanceolate or ovate-lanceolate; entire to 8.5 cm long and 3 cm wide and up to 1.5 mm thick; densely tomentose,with young leaves with purplish or greenish-grey hairs; stalk to 1 cm long, densely tomentose. Flower-spike of cream- white flowers in pyramidal clusters in axils of leaves, with purplish-grey, purplish-cream or greenish-grey hairs. Fruits are creamy-white hairy fruit. Seeds are woody globular seed to 3 mm diameter, covered in silky hairs.

Seed collection and propagation

Collect mature fruits that are fate and creamy white. May need to collect a lot as most will not have any viable seeds. Place the fruit in a tray and leave to dry for 1 to 2 weeks. Then rub the dried fruits with a rubber bung to dislodge the seeds. Use a sieve to separate any 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.