Cajanus acutifolius (Benth.) Maesen

Scientific Description

Genus Cajanus. Form erect or prostrate,spreading or scrambling. Habit shrub, spindly shrub (broom-like). Stems Indumentum glabrous, Pustules or glands absent, Striation (stems ribbed) not striate, Cross section flattened or winged, Spiny on any part of plant spiny at least in part. Leaves or phylloclades Presence clearly present, Position alternate, Leaves compound, Leaves or phylloclade continuous with stem 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 45-90. 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 (?) or without glands (?), Ribs ribbed (?) or ribless (?). Length Stipule length NaN (?). Bracteoles Presence absent, Indumentum hairy (?) or glabrous (?), Striation striate (?) or not striate (?). Length Bracteole length NaN (?). Pedicel Presence present, Indumentum hairy. Length Pedicel length 5-6.5. Calyx Pustules or glands absent, Ribs ribless, Enlarged in fruit not accrescent. Length Calyx length 10-13. Indumentum Presence hairy, Type with simple hairs. Corolla Colour patterning multicoloured, Colour (when multicoloured - choose one colour) yellow or white, Colour (when multicoloured - choose a second colour) yellow or white, Petal claws ( the narrow base of the petals absent. Length Corolla length 16-19.5. Indumentum Presence absent. Standard Indumentum glabrous, Auricles not auriculate. Length Standard length 16-19. Wings Auricles auriculate. Length Wing length 13-15.5. Keel Auricles not auriculate, Indumentum glabrous, Beak not beaked. Length Keel length 14.5-18. 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 12-18. 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 17-18. Fruit Type dehiscent (a pod or follicle), Constriction constricted between the seeds, Compression round in cross-section, Placement stipitate, Beak not beaked. Length Fruit length 35-40. Width Fruit width 8-10. Indumentum Presence hairy, Indumentum type with simple hairs. Flowering time February, April, May, June, July or August. Distribution Botanical Province Northern or Eremaean, IBRA Bioregion Pilbara, Northern Kimberley, Central Kimberley or Dampierland.