Sphaerolobium rostratum R.Butcher

Scientific Description

Genus Sphaerolobium. Form prostrate,spreading or scrambling. Habit shrub, spindly shrub (broom-like). Stems Indumentum glabrous, Pustules or glands absent, Striation (stems ribbed) not striate, Cross section terete, Spiny on any part of plant not spiny. Leaves or phylloclades Presence absent or apparently so (reduced to scales), Position opposite (?), alternate (?) or whorled (?), Leaves simple (?) or compound (?), Leaves or phylloclade continuous with stem not continuous with stem (?) or continuous with stem (?), Cross section of leaf or leaflet terete (?), flat with flat margins (?), flat with recurved margins (?), flat with incurved margins (conduplicate) (?), strongly recurved, appearing terete but with one or two grooves below (?), strongly incurved, appearing terete but grooved above (?) or revolute (?), 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 NaN (?). 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 (?) or glabrous (?), Striation striate (?) or not striate (?). Length Bracteole length NaN (?). Pedicel Presence present, Indumentum glabrous. Length Pedicel length 1-2.7. Calyx Pustules or glands absent, Ribs ribless, Enlarged in fruit not accrescent. Length Calyx length 5.6-7.5. Indumentum Presence glabrous. Corolla Colour patterning uniformly coloured, Colour (when uniformly coloured) pink, Petal claws ( the narrow base of the petals present. Length Corolla length 10-12.5. Indumentum Presence absent. Standard Indumentum glabrous, Auricles not auriculate. Length Standard length 7.5-12. Wings Auricles not auriculate. Length Wing length 6.5-11. Keel Auricles not auriculate, Indumentum hairy at least in part, Beak beaked. Length Keel length 9-12. Stamens Number ten. Anthers anther length 0.7, Position at two different levels (filaments alternately long and short). Filaments Fusion free (or united at the very base). Length Filament length 8.5-9.5. Ovary Placement stipitate. Indumentum Presence hairy or glandular. Style Indumentum hairy or glandular towards the base, Bearded ( with a tuft of hairs at apex ) bearded (with a tuft of hairs at apex), Apex terete. Length Style length 11-15.5. Fruit Type dehiscent (a pod or follicle) (?), indehiscent and not splitting into sections (?) or indehiscent and splitting into sections (schizocarps) (?), Constriction constricted between the seeds (?) or not constricted between the seeds (?), Compression flat or compressed (?) or round in cross-section (?), Placement stipitate (?) or sessile or subsessile (?), Beak beaked (?) or 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 September, October, November or December. Distribution Botanical Province South-West, IBRA Bioregion Jarrah Forest or Warren.