Cullen stipulaceum (Decne.) J.W.Grimes

Scientific Description

Genus Cullen. Form erect. Habit shrub, spindly shrub (broom-like). Stems Indumentum glabrous, Pustules or glands present, Striation (stems ribbed) 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 40-100. 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 with glands, Ribs ribless. Length Stipule length 6-10. Bracteoles Presence absent, Indumentum hairy (?) or glabrous (?), Striation striate (?) or not striate (?). Length Bracteole length NaN (?). Pedicel Presence present, Indumentum hairy. Length Pedicel length 3-6. Calyx Pustules or glands present, Ribs ribless, Enlarged in fruit accrescent (enlarged in fruit). Length Calyx length 9-11. Indumentum Presence hairy, Type with simple hairs. Corolla Colour patterning multicoloured, Colour (when multicoloured - choose one colour) purple or blue, Colour (when multicoloured - choose a second colour) purple or blue, Petal claws ( the narrow base of the petals absent. Length Corolla length 13-15. Indumentum Presence absent. Standard Indumentum glabrous, Auricles not auriculate. Length Standard length 11-13. Wings Auricles not auriculate. Length Wing length 9-10. Keel Auricles not auriculate, Indumentum glabrous, Beak not beaked. Length Keel length 9-10.5. Stamens Number ten. Anthers anther length NaN (?), Position at two different levels (filaments alternately long and short). Filaments Fusion united in an open sheath with one free stamen. Length Filament length 8.5-10. 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 9-11. Fruit Type indehiscent and splitting into sections (schizocarps), Constriction not constricted between the seeds, Compression round in cross-section, Placement stipitate, 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 July, August, September or October. Distribution Botanical Province Eremaean, IBRA Bioregion Pilbara or Little Sandy Desert.