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Bossiaea oxyclada Turcz.

Reference
Bull.Soc.Imp.Naturalistes Moscou 26:284 (1853)
Conservation Code
Priority Four
Naturalised Status
Native to Western Australia
Name Status
Current

Shrub, 0.35-0.5 m high, leafless, rigid, glaucous. Spongolitic loam. Breakaway slope.

Helen Coleman, Descriptive Catalogue, 3 December 1998

Scientific Description

Genus Bossiaea. Form erect. 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 alternate, Leaves simple (?) or 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 absent. Length Leaf length NaN (?). Width (entire leaves only) Leaf width NaN (?). Scale leaves length mm long 1. Indumentum Presence glabrous. Stipules Presence present and persistent to older leaves, Glands with glands (?) or without glands (?), Ribs ribbed (?) or ribless (?). Length Stipule length NaN (?). Bracteoles Presence present and persistent (?), absent (?) or 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 1.5-3. Calyx Pustules or glands absent, Ribs ribless, Enlarged in fruit not accrescent. Length Calyx length 4-5.5. Indumentum Presence hairy, Type with simple hairs. Corolla Colour patterning multicoloured, Colour (when multicoloured - choose one colour) yellow, red or brown, Colour (when multicoloured - choose a second colour) yellow, red or brown, Petal claws ( the narrow base of the petals present. Length Corolla length 7-10. Indumentum Presence absent. Standard Indumentum glabrous, Auricles not auriculate. Length Standard length 6.5-10. Wings Auricles not auriculate. Length Wing length 9. Keel Auricles not auriculate, Indumentum glabrous, Beak not beaked. Length Keel length 8.2. Stamens Number ten. Anthers anther length NaN (?), Position at two different levels (filaments alternately long and short). Filaments Fusion united in an open sheath. Length Filament length NaN (?). Ovary Placement stipitate. Indumentum Presence glabrous. Style Indumentum glabrous, Bearded ( with a tuft of hairs at apex ) not bearded, Apex terete. Length Style length 8.5. Fruit Type dehiscent (a pod or follicle), Constriction not constricted between the seeds, Compression flat or compressed, Placement stipitate, Beak not beaked. Length Fruit length 20-23. Width Fruit width 6-7. Indumentum Presence glabrous. Flowering time September or October. Distribution Botanical Province South-West, IBRA Bioregion Esperance. Conservation Code Priority Four (P4).

C. Hollister and K.R. Thiele, 17 April 2024

Distribution

IBRA Regions
Esperance Plains, Mallee.
IBRA Subregions
Fitzgerald, Western Mallee.
Local Government Areas (LGAs)
Jerramungup, Lake Grace.