Mirbelia ramulosa (Benth.) C.A.Gardner

Scientific Description

Genus Mirbelia. Form prostrate,spreading or scrambling. Habit shrub, spindly shrub (broom-like). Stems Indumentum glabrous, Pustules or glands absent, Striation (stems ribbed) striate, Cross section angular, Spiny on any part of plant spiny at least in part. Leaves or phylloclades Presence absent or apparently so (reduced to scales), Position alternate, Leaves simple (?) or 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 NaN (?). Width (entire leaves only) Leaf width NaN (?). Scale leaves length mm long NaN (?). Indumentum Presence glabrous. Stipules Presence present but early deciduous ( only visible on 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 1.3-1.8. Pedicel Presence present, Indumentum hairy. Length Pedicel length 3-3.5. Calyx Pustules or glands absent, Ribs ribbed, Enlarged in fruit not accrescent. Length Calyx length 5.5-7. Indumentum Presence hairy, Type with simple hairs. Corolla Colour patterning multicoloured, Colour (when multicoloured - choose one colour) yellow, red or purple, Colour (when multicoloured - choose a second colour) yellow, red or purple, Petal claws ( the narrow base of the petals absent. Length Corolla length 10.5-14.5. Indumentum Presence absent. Standard Indumentum glabrous, Auricles not auriculate. Length Standard length 9-12. Wings Auricles not auriculate. Length Wing length 7.5-9. Keel Auricles not auriculate, Indumentum glabrous, Beak not beaked. Length Keel length 6-7. Stamens Number ten. Anthers anther length 0.5-0.6, Position at two different levels (filaments alternately long and short). Filaments Fusion free (or united at the very base). Length Filament length 4.2-6. Ovary Placement stipitate (?) or sessile or subsessile (?). Indumentum Presence glabrous. Style Indumentum glabrous, Bearded ( with a tuft of hairs at apex ) not bearded, Apex terete. Length Style length 5.2-5.7. 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 10. Width Fruit width 6. Indumentum Presence glabrous. Flowering time June, July, August, September, October or November. Distribution Botanical Province Eremaean or South-West, IBRA Bioregion Great Sandy Desert, Carnarvon, Central Ranges, Yalgoo, Murchison, Coolgardie, Geraldton Sandplains, Avon Wheatbelt, Jarrah Forest, Mallee, Esperance or Swan Coastal Plain.