Rhynchosia australis Benth.
Rhynchosia

Scientific Description

Genus Rhynchosia. Form twining or climbing plants. 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 present. Length Leaf length 40-120. Width (entire leaves only) Leaf width NaN (?). Scale leaves length mm long NaN (?). Leaflets Number three, Arrangement pinnately arranged. Terminal leaflet Presence present, Stalk stalked. Indumentum Presence hairy, Type simple. Stipules Presence present and persistent to older leaves, Glands without glands, Ribs ribless. Length Stipule length 3. Bracteoles Presence absent, Indumentum hairy (?) or glabrous (?), Striation striate (?) or not striate (?). Length Bracteole length NaN (?). Pedicel Presence present, Indumentum hairy. Length Pedicel length 1-1.5. Calyx Pustules or glands present, Ribs ribless, Enlarged in fruit not accrescent. Length Calyx length 5-6.5. 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 present. Length Corolla length 7.5-10. Indumentum Presence absent. Standard Indumentum glabrous, Auricles auriculate. Length Standard length 7-8. Wings Auricles not auriculate. Length Wing length 6-7.5. Keel Auricles not auriculate, Indumentum glabrous, Beak not beaked. Length Keel length 7-8. Stamens Number ten. Anthers anther length 0.4-0.5, Position at two different levels (filaments alternately long and short). Filaments Fusion united in an open sheath with one free stamen. Length Filament length 5-7. 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 7.5-8.5. Fruit Type dehiscent (a pod or follicle), Constriction not constricted between the seeds, Compression flat or compressed, Placement sessile or subsessile, Beak not beaked. Length Fruit length NaN (?). Width Fruit width NaN (?). Indumentum Presence hairy (?) or glabrous (?), Indumentum type with simple hairs (?) or with glandular hairs (?). Flowering time March, April, May, June or August. Distribution Botanical Province Northern or Eremaean, IBRA Bioregion Pilbara, Carnarvon, Gascoyne, Little Sandy Desert, Northern Kimberley, Victoria Bonaparte, Ord-Victorian-Plain or Dampierland.