Dillwynia sp. Mallee (W.R. Archer 1709959)

Scientific Description

Genus Dillwynia. Form erect. Habit shrub, spindly shrub (broom-like). Stems Indumentum hairy, Pustules or glands absent, Striation (stems ribbed) not striate, Cross section terete, Spiny on any part of plant not spiny. Leaves or phylloclades Presence clearly present, Position whorled, Leaves or phylloclade continuous with stem not continuous with stem, Cross section of leaf or leaflet flat with recurved margins, Margins of leaf or leaflet entire, Tuberculate tubercles absent, Pustules or glands absent. Length Leaf length 4-9. Width (entire leaves only) Leaf width NaN (?). Leaflets Number three, Arrangement pinnately arranged. Terminal leaflet Presence present, Stalk sessile (?) or stalked (?). Indumentum Presence hairy, Type simple. Pedicel Presence present, Indumentum hairy. Length Pedicel length 2-4. 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) red, Colour (when multicoloured - choose a second colour) yellow, Petal claws ( the narrow base of the petals present. Length Corolla length 7-8. Indumentum Presence absent. Standard Indumentum glabrous, Auricles not auriculate. Length Standard length 8-8.5. Wings Auricles not auriculate. Length Wing length 5-6.5. Keel Indumentum glabrous, Beak not beaked. Length Keel length 4-6. 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 3.2-4. 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 3.8. Fruit Constriction not constricted between the seeds, Compression round in cross-section, Placement stipitate (?) or sessile or subsessile (?), Beak not beaked. Length Fruit length NaN (?). Width Fruit width NaN (?). Indumentum Presence hairy (?) or glabrous (?). Flowering time August, September or October. Distribution Botanical Province Eremaean or South-West, IBRA Bioregion Coolgardie, Mallee or Esperance.