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Leptosema tomentosum (Benth.) Crisp

Reference
Austral.Syst.Bot. 12:41 (1999)
Conservation Code
Not threatened
Naturalised Status
Native to Western Australia
Name Status
Current

Densely tufted, leafless shrub, 0.2-0.6 m high. Fl. green-yellow/cream/green & red, Aug to Oct. Gravelly or clayey sandy soils, yellow or white sand.

Amanda Spooner, Descriptive Catalogue, 1 October 1997
Image

Scientific Description

Genus Leptosema. Form prostrate,spreading or scrambling. Habit shrub, spindly shrub (broom-like). Stems Indumentum glabrous, Pustules or glands absent, Striation (stems ribbed) not striate, Cross section flattened, 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 10-27. Width (entire leaves only) Leaf width 4-5. Scale leaves length mm long NaN (?). Indumentum Presence hairy, Type simple. Stipules Presence apparently absent even from the youngest leaves, Glands without glands, Ribs ribless. Length Stipule length 3-5. Bracteoles Presence present and persistent, Indumentum hairy, Striation not striate. Length Bracteole length 5-6. Pedicel Presence present, Indumentum hairy. Length Pedicel length 5-10. Calyx Pustules or glands absent, Ribs ribless, Enlarged in fruit not accrescent. Length Calyx length 20-25. 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 absent. Length Corolla length 34-36. Indumentum Presence absent. Standard Indumentum glabrous, Auricles not auriculate. Length Standard length 28-30. Wings Auricles not auriculate. Length Wing length 28-30. Keel Auricles not auriculate, Indumentum glabrous, Beak not beaked. Length Keel length 33-34. Stamens Number ten. Anthers anther length 3.2-3.7, Position at two different levels (filaments alternately long and short). Filaments Fusion free (or united at the very base). Length Filament length 30-31. 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 33-40. Fruit Type dehiscent (a pod or follicle), Constriction not constricted between the seeds, Compression flat or compressed, Placement sessile or subsessile, 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 August, September or October. Distribution Botanical Province Eremaean or South-West, IBRA Bioregion Yalgoo, Geraldton Sandplains or Avon Wheatbelt.

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

Distribution

IBRA Regions
Avon Wheatbelt, Geraldton Sandplains, Yalgoo.
IBRA Subregions
Edel, Geraldton Hills, Merredin.
IMCRA Regions
Central West Coast.
Local Government Areas (LGAs)
Dalwallinu, Northampton, Perenjori, Shark Bay, Wongan-Ballidu.