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Swainsona leeana J.Z.Weber

Reference
J.Adelaide Bot.Gard. 7:301-302 (1985)
Conservation Code
Not threatened
Naturalised Status
Native to Western Australia
Name Status
Current

Prostrate or ascending annual or perennial, herb, 0.02-0.15 m high. Fl. purple-pink, Sep to Oct. Stony soils or clay-loam. Dry watercourses.

Amanda Spooner, Descriptive Catalogue, 20 September 1999

Scientific Description

Genus Swainsona. Form twining or climbing plants. Habit herb. 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 12-20. 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) 5-9, 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 3-3.5. Bracteoles Presence present and persistent, Indumentum hairy (?) or glabrous (?), Striation striate (?) or not striate (?). Length Bracteole length NaN (?). Pedicel Presence present, Indumentum hairy. Length Pedicel length 2-4. Calyx Pustules or glands absent, Ribs ribless, Enlarged in fruit not accrescent. Length Calyx length 2.5-3. Indumentum Presence hairy, Type with simple hairs. Corolla Colour patterning multicoloured, Colour (when multicoloured - choose one colour) pink or purple, Colour (when multicoloured - choose a second colour) pink or purple, Petal claws ( the narrow base of the petals present. Length Corolla length 4-4.5. Indumentum Presence absent. Standard Indumentum glabrous, Auricles not auriculate. Length Standard length 3.5-4.5. Wings Auricles not auriculate. Length Wing length 3-3.5. Keel Auricles not auriculate, Indumentum glabrous, Beak not beaked. Length Keel length 4-4.5. Stamens Number ten. Anthers anther length NaN (?), Position all at the same level (filaments all the same loength) (?) or 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 NaN (?). 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 terete. Length Style length 3-4. Fruit Type dehiscent (a pod or follicle), Constriction not constricted between the seeds, Compression round in cross-section, Placement stipitate. Length Fruit length 10-15. Width Fruit width 5-6. Indumentum Presence hairy, Indumentum type with simple hairs. Flowering time September or October. Distribution Botanical Province Eremaean, IBRA Bioregion Pilbara, Carnarvon, Gascoyne, Gibson Desert, Yalgoo, Murchison, Great Victorian Desert or Coolgardie.

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

Distribution

IBRA Regions
Carnarvon, Coolgardie, Gascoyne, Gibson Desert, Great Victoria Desert, Murchison, Pilbara, Yalgoo.
IBRA Subregions
Ashburton, Cape Range, Central, Eastern Goldfield, Eastern Murchison, Edel, Fortescue, Hamersley, Lateritic Plain, Roebourne, Western Murchison, Wooramel.
Local Government Areas (LGAs)
Ashburton, Carnarvon, East Pilbara, Exmouth, Kalgoorlie-Boulder, Karratha, Leonora, Meekatharra, Murchison, Ngaanyatjarraku, Shark Bay, Upper Gascoyne, Wiluna.