Leptosema aphyllum (Hook.) Crisp

Scientific Description

Genus Leptosema. Form twining or climbing plants. Habit shrub, spindly shrub (broom-like). Stems Indumentum glabrous, Pustules or glands absent, Striation (stems ribbed) striate, Cross section flattened or winged, Spiny on any part of plant not spiny. Leaves or phylloclades Presence absent or apparently so (reduced to scales), Position alternate, Leaves simple (?) or compound (?), Leaves or phylloclade continuous with stem not continuous with stem (?) or 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 NaN (?). Width (entire leaves only) Leaf width NaN (?). Scale leaves length mm long 4-10. Indumentum Presence glabrous. Stipules Presence apparently absent even from the youngest leaves, Glands with glands (?) or without glands (?), Ribs ribbed (?) or ribless (?). Length Stipule length NaN (?). Bracteoles Presence present and persistent, Indumentum hairy, Striation not striate. Length Bracteole length 0.5-2. Pedicel Presence present, Indumentum hairy. Length Pedicel length 4-6. Calyx Pustules or glands absent, Ribs ribless, Enlarged in fruit not accrescent. Length Calyx length 25-28. Indumentum Presence hairy, Type with simple hairs. Corolla Colour patterning multicoloured, Colour (when multicoloured - choose one colour) yellow, red or green, Colour (when multicoloured - choose a second colour) yellow, red or green, Petal claws ( the narrow base of the petals absent. Length Corolla length 32-45. Indumentum Presence absent. Standard Indumentum glabrous, Auricles not auriculate. Length Standard length NaN (?). Wings Auricles not auriculate. Length Wing length 17. Keel Auricles not auriculate, Indumentum glabrous, Beak not beaked. Length Keel length 30-40. Stamens Number ten. Anthers anther length 3-4, Position at two different levels (filaments alternately long and short). Filaments Fusion free (or united at the very base). Length Filament length 24-32. Ovary Placement stipitate. 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 38. 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 glabrous. Flowering time May, June, July, August, September or October. Distribution Botanical Province Eremaean or South-West, IBRA Bioregion Geraldton Sandplains or Avon Wheatbelt.