Jacksonia velveta 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 angular, Spiny on any part of plant spiny at least in part. Leaves or phylloclades Presence clearly present, 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 dentate, Tuberculate tubercles absent, Pustules or glands absent. Length Leaf length 35-80. Width (entire leaves only) Leaf width 15-18. Scale leaves length mm long NaN (?). 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 1.5-3. Pedicel Presence present, Indumentum hairy. Length Pedicel length 1-1.5. Calyx Pustules or glands absent, Ribs ribless, Enlarged in fruit not accrescent. Length Calyx length 13-17.5. Indumentum Presence hairy, Type with glandular hairs. Corolla Colour patterning multicoloured, Colour (when multicoloured - choose one colour) yellow or orange, Colour (when multicoloured - choose a second colour) yellow or orange, Petal claws ( the narrow base of the petals present. Length Corolla length 10-13. Indumentum Presence absent. Standard Indumentum glabrous, Auricles not auriculate. Length Standard length 9.5-11. Wings Auricles not auriculate. Length Wing length 11.5-13. Keel Auricles not auriculate, Indumentum glabrous, Beak not beaked. Length Keel length 10-12. Stamens Number ten. Anthers anther length 1.3-1.5, Position at two different levels (filaments alternately long and short). Length Filament length 6-8.2. 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 12-13. 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 NaN (?). Width Fruit width NaN (?). Indumentum Presence hairy (?) or glabrous (?), Indumentum type with simple hairs (?) or with glandular hairs (?). Flowering time December. Distribution Botanical Province South-West, IBRA Bioregion Avon Wheatbelt or Jarrah Forest. Conservation Code Threatened (T).