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Rothia indica subsp. australis A.E.Holland

Reference
Austrobaileya 5:94-95,Fig.1 (1997)
Conservation Code
Priority Three
Naturalised Status
Native to Western Australia
Name Status
Current

Prostrate annual, herb, to 0.3 m high, densely covered in spreading hairs. Fl. Apr to Aug. Sandy soils. Sandhills and sandy flats.

Amanda Spooner, Descriptive Catalogue, 29 June 1999

Scientific Description

Genus Rothia. Form twining or climbing plants. Habit herb. Stems Indumentum hairy, Pustules or glands absent, Striation (stems ribbed) not striate, Cross section terete, Spiny on any part of plant not spiny. Leaves or phylloclades Presence clearly present, Position alternate, Leaves compound, Leaves or phylloclade continuous with stem not continuous with stem, Cross section of leaf or leaflet flat with flat margins, Margins of leaf or leaflet entire, Tuberculate tubercles absent, Pustules or glands absent. Length Leaf length 10-22. Width (entire leaves only) Leaf width NaN (?). Scale leaves length mm long NaN (?). Leaflets Number three, Arrangement palmately arranged. Terminal leaflet Presence absent. Indumentum Presence hairy, Type simple. Stipules Presence present and persistent to older leaves, Glands without glands, Ribs ribless. Length Stipule length 5-6.5. Bracteoles Presence absent, Indumentum hairy (?) or glabrous (?), Striation striate (?) or not striate (?). Length Bracteole length NaN (?). Pedicel Presence present (?) or absent (flowers sessile) (?), Indumentum hairy (?) or glabrous (?). Length Pedicel length NaN (?). Calyx Pustules or glands absent, Ribs ribless, Enlarged in fruit not accrescent. Length Calyx length 5.5-6. Indumentum Presence hairy, Type with simple hairs. Corolla Colour patterning uniformly coloured, Colour (when uniformly coloured) yellow, Petal claws ( the narrow base of the petals absent. Length Corolla length 6-7. Indumentum Presence absent. Standard Indumentum glabrous, Auricles not auriculate. Length Standard length 5-5.2. Wings Auricles not auriculate. Length Wing length 5-5.2. Keel Auricles not auriculate, Indumentum glabrous, Beak not beaked. Length Keel length 4.5-5. Stamens Number ten. Anthers anther length 0.2, Position at two different levels (filaments alternately long and short). Filaments Fusion united in an open sheath. Length Filament length 3.5-4.6. Ovary Placement sessile or subsessile. Indumentum Presence hairy or glandular. Style Indumentum hairy or glandular towards the base, Bearded ( with a tuft of hairs at apex ) not bearded, Apex terete. Length Style length 3.6-5.5. Fruit Type dehiscent (a pod or follicle), Constriction not constricted between the seeds, Compression flat or compressed, Placement sessile or subsessile, Beak beaked. Length Fruit length 30-33. Width Fruit width 2.5-3. Indumentum Presence hairy, Indumentum type with simple hairs. Flowering time April, May, June, July or August. Distribution Botanical Province Northern or Eremaean, IBRA Bioregion Great Sandy Desert, Pilbara or Dampierland. Conservation Code Priority Three (P3).

C. Hollister and K.R. Thiele, 17 April 2024

Distribution

IBRA Regions
Dampierland, Great Sandy Desert, Pilbara, Victoria Bonaparte.
IBRA Subregions
Chichester, Mackay, Pindanland, Roebourne.
Local Government Areas (LGAs)
Derby-West Kimberley, East Pilbara, Port Hedland.