Cristonia stenophylla (Meisn.) I.Thomps.

Scientific Description

Genus Cristonia. 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 clearly present, Position alternate, Leaves simple, 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 20-65. Width (entire leaves only) Leaf width 2-4. Scale leaves length mm long NaN (?). Indumentum Presence hairy, Type simple. Stipules Presence apparently absent even from the youngest leaves (?), present and persistent to older leaves (?) or 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 and persistent, Indumentum hairy, Striation not striate. Length Bracteole length 2. Pedicel Presence present, Indumentum hairy. Length Pedicel length 8-9. Calyx Pustules or glands absent, Ribs ribless, Enlarged in fruit not accrescent. Length Calyx length 10-10.5. Indumentum Presence hairy, Type with simple hairs. Corolla Colour patterning uniformly coloured, Colour (when uniformly coloured) yellow, Petal claws ( the narrow base of the petals present. Length Corolla length 13-15.5. Indumentum Presence absent. Standard Indumentum glabrous, Auricles not auriculate. Length Standard length 12-15. Wings Auricles not auriculate. Length Wing length 12-14.5. Keel Auricles not auriculate, Indumentum glabrous, Beak not beaked. Length Keel length 12-14.5. Stamens Number nine (?) or ten (?). Anthers anther length NaN (?), Position at two different levels (filaments alternately long and short). Filaments Fusion free (or united at the very base) (?), united in an open sheath (?), united in a closed sheath (?) or united in an open sheath with one free stamen (?). Length Filament length 13-14. Ovary Placement sessile or subsessile. Indumentum Presence glabrous. Style Indumentum glabrous, Bearded ( with a tuft of hairs at apex ) not bearded, Apex terete. Length Style length 14.5-16.5. Fruit Type dehiscent (a pod or follicle), Constriction not constricted between the seeds, Compression flat or compressed, Placement sessile or subsessile, Beak 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 June, July or August. Distribution Botanical Province South-West, IBRA Bioregion Geraldton Sandplains or Avon Wheatbelt.