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Crotalaria cunninghamii subsp. sturtii (R.Br.) A.E.Holland

Reference
Austrobaileya 6:305 (2002)
Conservation Code
Not threatened
Naturalised Status
Native to Western Australia
Name Status
Current

Shrub, to 4 m high. Fl. green/yellow, Jan to Dec. Sand. Crests of sand dunes, sandplains, drainage lines.

Amanda Spooner, Descriptive Catalogue, 6 May 2003

Scientific Description

Genus Crotalaria. 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 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, Pustules or glands absent. Length Leaf length 55-120. Width (entire leaves only) Leaf width 20-60. Scale leaves length mm long NaN (?). Indumentum Presence hairy, Type simple. Stipules Presence present and persistent to older 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 10-12. Pedicel Presence present, Indumentum hairy. Length Pedicel length 7-9. Calyx Pustules or glands absent, Ribs ribless, Enlarged in fruit not accrescent. Length Calyx length 15-21. Indumentum Presence hairy, Type with simple hairs. Corolla Colour patterning multicoloured, Colour (when multicoloured - choose one colour) yellow or green, Colour (when multicoloured - choose a second colour) yellow or green, Petal claws ( the narrow base of the petals present. Length Corolla length 40-55. Indumentum Presence absent. Standard Indumentum glabrous, Auricles not auriculate. Length Standard length 30-45. Wings Auricles not auriculate. Length Wing length 30-35. Keel Auricles not auriculate, Indumentum glabrous, Beak beaked. Length Keel length 40-50. Stamens Number ten. Anthers anther length 1.5-6.2, Position at two different levels (filaments alternately long and short). Filaments Fusion united in an open sheath. Length Filament length 15-26. 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 38-40. 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 45. Width Fruit width 13. Indumentum Presence hairy, Indumentum type with simple hairs. Flowering time January, February, March, April, May, June, July, August, September, October, November or December. Distribution Botanical Province Northern or Eremaean, IBRA Bioregion Pilbara, Carnarvon, Gascoyne, Little Sandy Desert, Ord-Victorian-Plain or Dampierland.

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

Distribution

IBRA Regions
Carnarvon, Dampierland, Gascoyne, Little Sandy Desert, Ord Victoria Plain, Pilbara.
IBRA Subregions
Augustus, Cape Range, Chichester, Fitzroy Trough, Hamersley, Purnululu, Roebourne, Trainor, Wooramel.
Local Government Areas (LGAs)
Ashburton, Carnarvon, Derby-West Kimberley, East Pilbara, Halls Creek, Meekatharra, Port Hedland, Upper Gascoyne, Wiluna.