Ptilotus sp. Cordillo Downs (B.Lay 1487)
Ptilotus parvifolius var. laetus
Ptilotus from the Greek 'ptilotos' meaning feathered or winged; referring to the hairy flowers. Remotiflorus from the Latin 'remotus' meaning removed and 'florus' meaning flower; presumably referring to the flowers being apart from each other or the stems.
Distribution and status
Found in the far north-east in South Australia, just north of Cordillo Downs homestead, growing on loams or clays with abundant exposed shale, rocks or stones (silcrete), on hillslopes, rocky screes and gullies, in open plain, tableland or semi-desert areas. Also found in Queensland and New South Wales. Native. Rare in South Australia. Uncommon in New South Wales. Common in Queensland.
Herbarium region: Lake Eyre
NRM region: South Australian Arid Lands
AVH map: SA distribution map (external link)
Much-branched, divaricate subspinescent shrub to 60 cm high with striate stems, with subverticillate to verticillate hairs, dense on younger parts, grey-green, older wood glabrescent, brown. Leaves with stalk to 6 mm long, ovate to broadly ovate, rarely narrowly ovate, to 18 mm long and 7 mm wide, clustered on new stem shoots, hairs as for stems, dark green, drying blackish, margins usually undulate, rarely flat. Flower-spikes short clusters to 6 cm long, with 10–40 purple to deep pink flowers. Flowering between June and November. Fruits are white to pinkish, ovoid head containing numerous long papery and hairy fruits, each containing one seed. Seed embryo type is peripheral.
Seed collection and propagation
Collect seeds between October and January. Be very careful when collecting this species as the fruits contain fine hairs that may cause an allergic reaction for some people. Collect the fruit heads when dried to a white to pale straw colour. Each fruit should come off the head easily when fingers are rubbed up the stem. Collect more fruits than required as not all fruits contain viable seed. Be very careful when cleaning this species as the fruits contain fine hairs that may cause an allergic reaction for some people. To clean, rub the fruit heads gently to dislodge the seed at the base of each fruit. 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 one collection, the seed viability was high, at 90%. Seeds are non-dormant, viable seed should germinate readily.
|Location||No. of seeds|
|700 (1.39 g)|
1,600 (2.86 g)