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Swainsona elegantoides (A.T.Lee) Joy Thomps.

Reference
Telopea 5:462 (1993)
Conservation Code
Not threatened
Naturalised Status
Native to Western Australia
Name Status
Current

Ascending or erect annual, herb, 0.3-2 m high. Fl. purple/red-brown-purple, May or Jul to Oct. Red sandy soils. Among rocks, flats, moist floodplains.

Amanda Spooner, Descriptive Catalogue, 20 September 1999

Scientific Description

Genus Swainsona. Form erect. Habit herb. Stems Indumentum hairy, Pustules or glands absent, Striation (stems ribbed) 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 (?) or 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 60-85. 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) 13-19, Arrangement pinnately arranged. Terminal leaflet Presence present, Stalk stalked. Indumentum Presence hairy, Type simple. Stipules Presence present and persistent to older leaves, Glands without glands, Ribs ribless. Length Stipule length 7-9.5. Bracteoles Presence present and persistent, Indumentum hairy, Striation not striate. Length Bracteole length 3.5-4. Pedicel Presence present, Indumentum hairy. Length Pedicel length 4-4.5. Calyx Pustules or glands absent, Ribs ribless, Enlarged in fruit not accrescent. Length Calyx length 7-8.5. Indumentum Presence hairy, Type with simple hairs. Corolla Colour patterning multicoloured, Colour (when uniformly coloured) purple, Colour (when multicoloured - choose one colour) red or purple, Colour (when multicoloured - choose a second colour) red or purple, Petal claws ( the narrow base of the petals present. Length Corolla length 14-15.5. Indumentum Presence absent. Standard Indumentum glabrous, Auricles not auriculate. Length Standard length 13-15. Wings Auricles auriculate. Length Wing length 11-12. Keel Auricles auriculate, Indumentum glabrous, Beak beaked (?) or not beaked (?). Length Keel length 12-13.5. Stamens Number ten. Anthers anther length 0.9-1, Position at two different levels (filaments alternately long and short). Filaments Fusion united in an open sheath with one free stamen. Length Filament length 10-10.5. Ovary Placement stipitate. Indumentum Presence hairy or glandular. Style Indumentum hairy or glandular towards the base, Bearded ( with a tuft of hairs at apex ) bearded (with a tuft of hairs at apex), Apex flattened at apex. Length Style length 12-14.2. Fruit Type dehiscent (a pod or follicle), Constriction not constricted between the seeds, Compression round in cross-section, Placement stipitate. Length Fruit length NaN (?). Width Fruit width NaN (?). Indumentum Presence hairy, Indumentum type with simple hairs. Flowering time May, July, August, September or October. Distribution Botanical Province Eremaean, IBRA Bioregion Carnarvon, Gascoyne, Yalgoo or Murchison.

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

Distribution

IBRA Regions
Gascoyne, Murchison, Pilbara, Yalgoo.
IBRA Subregions
Augustus, Carnegie, Eastern Murchison, Hamersley, Tallering, Western Murchison.
Local Government Areas (LGAs)
East Pilbara, Leonora, Meekatharra, Mount Magnet, Sandstone, Upper Gascoyne, Wiluna, Yalgoo.