Gastrolobium spectabile (Endl.) Crisp

Scientific Description

Genus Gastrolobium. Form erect. Habit shrub, spindly shrub (broom-like). Stems Indumentum glabrous, Pustules or glands absent, Striation (stems ribbed) not striate, Cross section terete or angular, Spiny on any part of plant spiny at least in part. Leaves or phylloclades Presence clearly present, Position opposite, Leaves simple, 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 15-40 (?). Width (entire leaves only) Leaf width 12-40. Scale leaves length mm long NaN (?). Indumentum Presence glabrous. Stipules Presence present and persistent to older leaves, Glands without glands, Ribs ribless. Length Stipule length 3. Bracteoles Presence present but early deciduous, Indumentum hairy (?) or glabrous (?), Striation striate (?) or not striate (?). Length Bracteole length NaN (?). Pedicel Presence present, Indumentum glabrous. Length Pedicel length 3.2-4. Calyx Pustules or glands absent, Ribs ribless, Enlarged in fruit not accrescent. Length Calyx length 9-10. Indumentum Presence glabrous. Corolla Colour patterning multicoloured, Colour (when uniformly coloured) orange, Colour (when multicoloured - choose one colour) yellow or green, Colour (when multicoloured - choose a second colour) yellow or green, Petal claws ( the narrow base of the petals present. Length Corolla length 13-16.5. Indumentum Presence absent. Standard Indumentum glabrous, Auricles auriculate. Length Standard length 13-14.6. Wings Auricles auriculate. Length Wing length 12.6-14. Keel Auricles auriculate, Indumentum glabrous, Beak not beaked. Length Keel length 14-14.5. Stamens Number ten. Anthers anther length 1-1.5, Position at two different levels (filaments alternately long and short). Filaments Fusion free (or united at the very base). Length Filament length 10.6-13.5. 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 13-14.2. Fruit Type dehiscent (a pod or follicle), Constriction not constricted between the seeds, Compression round in cross-section, Placement stipitate, Beak not beaked. Length Fruit length 15. Width Fruit width 5. Indumentum Presence glabrous. Flowering time September, October or November. Distribution Botanical Province South-West, IBRA Bioregion Avon Wheatbelt or Mallee. Conservation Code Priority Three (P3).