Indigofera gilesii Peter G.Wilson & Rowe

Scientific Description

Genus Indigofera. 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 alternate, Leaves 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 15-80. Width (entire leaves only) Leaf width NaN (?). Scale leaves length mm long NaN (?). Leaflets Number more than three, Number of leaflets (if more than three) 9-17, Arrangement pinnately arranged. Terminal leaflet Presence present, Stalk stalked. Indumentum Presence hairy, Type simple. 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 but early deciduous, Indumentum hairy (?) or glabrous (?), Striation striate (?) or not striate (?). Length Bracteole length NaN (?). 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 3.8-4. Indumentum Presence hairy, Type with simple hairs. Corolla Petal claws ( the narrow base of the petals absent. Length Corolla length 10-10.5. Indumentum Presence absent. Standard Indumentum glabrous, Auricles not auriculate. Length Standard length 8.6. Wings Auricles not auriculate. Length Wing length 6.6. Keel Auricles not auriculate, Indumentum glabrous, Beak not beaked. Length Keel length 8.2-9. Stamens Number ten. Anthers anther length 0.8-1, Position at two different levels (filaments alternately long and short). Filaments Fusion united in an open sheath with one free stamen. Length Filament length 6-7.2. Ovary Placement stipitate. Indumentum Presence glabrous. Style Indumentum glabrous, Bearded ( with a tuft of hairs at apex ) not bearded, Apex terete. Length Style length 8.4-9.6. 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 30. Width Fruit width 2.6. Indumentum Presence hairy, Indumentum type with simple hairs. Flowering time May, June or August. Distribution Botanical Province Eremaean, IBRA Bioregion Pilbara or Murchison. Conservation Code Priority Three (P3).