Jacksonia pungens Chappill

Scientific Description

Genus Jacksonia. Form erect. Habit shrub, spindly shrub (broom-like). Stems Indumentum hairy, Pustules or glands absent, Striation (stems ribbed) striate, Cross section terete, 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 (?), 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. Length Leaf length NaN (?). Width (entire leaves only) Leaf width NaN (?). Scale leaves length mm long 1-3.5. Indumentum Presence hairy, Type simple. 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, Striation not striate. Length Bracteole length 5.5-10. Pedicel Presence present, Indumentum hairy. Length Pedicel length 3-10. Calyx Pustules or glands absent, Ribs ribless, Enlarged in fruit not accrescent. Length Calyx length 12-16. Indumentum Presence hairy, Type with simple hairs. Corolla Colour patterning multicoloured, Colour (when uniformly coloured) orange, Colour (when multicoloured - choose one colour) yellow, red or orange, Colour (when multicoloured - choose a second colour) yellow, red or orange, Petal claws ( the narrow base of the petals present. Length Corolla length 16-17. Indumentum Presence absent. Standard Indumentum glabrous, Auricles not auriculate. Length Standard length 10-11. Wings Auricles not auriculate. Length Wing length 11-12. Keel Auricles not auriculate, Indumentum glabrous, Beak not beaked. Length Keel length 11-12.5. Stamens Number ten. Anthers anther length 1-1.3, Position at two different levels (filaments alternately long and short). Filaments Fusion free (or united at the very base). Length Filament length 11-13. 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 11-14. Fruit Constriction not constricted between the seeds, Compression round in cross-section, Placement stipitate, Beak 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 November or December. Distribution Botanical Province South-West, IBRA Bioregion Geraldton Sandplains or Avon Wheatbelt. Conservation Code Threatened (T).