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Chorizema racemosum (Meisn.) J.M.Taylor & Crisp

Reference
Austral.Syst.Bot. 5:258 (1992)
Conservation Code
Not threatened
Naturalised Status
Native to Western Australia
Name Status
Current

Spreading or erect shrub, 0.3-2 m high. Fl. yellow/orange & red, May to Oct. Variety of soils. Flats or undulating plains, flood-channels, river beds.

Grazyna Paczkowska, Descriptive Catalogue, 28 May 1996
Image

Scientific Description

Genus Chorizema. Form erect or prostrate,spreading or scrambling. 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 simple, Leaves or phylloclade continuous with stem not continuous with stem, Cross section of leaf or leaflet strongly recurved, appearing terete but with one or two grooves below, Margins of leaf or leaflet entire, Tuberculate tubercles absent, Pustules or glands absent. Length Leaf length 7-14. Width (entire leaves only) Leaf width 0.8-1.8. Scale leaves length mm long NaN (?). Indumentum Presence glabrous. 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 or present but early deciduous, Indumentum hairy, Striation not striate. Length Bracteole length 0.9-1. Pedicel Presence present, Indumentum hairy. Length Pedicel length 1-2. Calyx Pustules or glands absent, Ribs ribless, Enlarged in fruit not accrescent. Length Calyx length 3.5-4.2. Indumentum Presence hairy, Type with simple hairs. Corolla Colour patterning multicoloured, 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 8-10. Indumentum Presence absent. Standard Indumentum glabrous, Auricles not auriculate. Length Standard length 8-9.5. Wings Auricles not auriculate. Length Wing length 6.2-8. Keel Auricles not auriculate, Indumentum glabrous, Beak not beaked. Length Keel length 6-7. Stamens Number ten. Anthers anther length 0.3-0.4, Position at two different levels (filaments alternately long and short). Filaments Fusion free (or united at the very base). Length Filament length 3.5-5. 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 4-6. 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 NaN (?). Width Fruit width NaN (?). Indumentum Presence hairy (?) or glabrous (?), Indumentum type with simple hairs (?) or with glandular hairs (?). Flowering time May, June, July, August, September or October. Distribution Botanical Province Eremaean or South-West, IBRA Bioregion Carnarvon, Gascoyne, Yalgoo, Murchison, Coolgardie, Geraldton Sandplains, Avon Wheatbelt or Swan Coastal Plain.

C. Hollister and K.R. Thiele, 17 April 2024

Distribution

IBRA Regions
Avon Wheatbelt, Carnarvon, Coolgardie, Gascoyne, Geraldton Sandplains, Jarrah Forest, Murchison, Swan Coastal Plain, Yalgoo.
IBRA Subregions
Ashburton, Augustus, Cape Range, Eastern Goldfield, Edel, Geraldton Hills, Katanning, Lesueur Sandplain, Merredin, Northern Jarrah Forest, Perth, Tallering, Western Murchison, Wooramel.
IMCRA Regions
Central West Coast, Pilbara (offshore), Shark Bay.
Local Government Areas (LGAs)
Ashburton, Beverley, Carnamah, Carnarvon, Chapman Valley, Cunderdin, Exmouth, Gingin, Goomalling, Greater Geraldton, Irwin, Kalgoorlie-Boulder, Kellerberrin, Meekatharra, Mingenew, Moora, Morawa, Murchison, Northampton, Perenjori, Shark Bay, Three Springs, Upper Gascoyne, Victoria Plains, Wyalkatchem, York.