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Sphaerolobium rostratum R.Butcher

Reference
Nuytsia 12:174-178,Fig.3 (1998)
Conservation Code
Not threatened
Naturalised Status
Native to Western Australia
Name Status
Current

Erect to sprawling shrub (or subshrub), 0.6-1.6 m high, keel petals with distinctive acuminate to rostrate apex. Fl. pink&cream, Sep to Dec. Sandy soils and clayey sand. Creeklines, seasonally wet swamps.

Helen Coleman, Descriptive Catalogue, 12 November 1998
Image

Scientific Description

Prostrate,spreading or scrambling, shrub, spindly shrub (broom-like). Stems terete, not spiny, glabrous; pustules or glands absent. Leaves or phylloclades absent or apparently so (reduced to scales), glabrous; margins entire; tubercles absent; pustules or glands absent. Stipules apparently absent even from the youngest leaves. Pedicel present, 1-2.7 mm long, glabrous. Bracteoles present and persistent. Calyx 5.6-7.5 mm long, not accrescent, glabrous, ribless; pustules or glands absent. Corolla 10-12.5 mm long, uniformly coloured, pink; claws present; standard 7.5-12 mm long, glabrous, not auriculate, wings 6.5-11 mm long, not auriculate, keel 9-12 mm long, beaked, not auriculate, hairy at least in part. Stamens ten; anthers 0.7 mm long, at two different levels (filaments alternately long and short); filaments free (or united at the very base), 8.5-9.5 mm long. Ovary stipitate, hairy or glandular; style 11-15.5 mm long, hairy or glandular towards the base, bearded (with a tuft of hairs at apex), terete. Flowers in September, October, November and December. Occurs in the South-West Botanical Province, in the Jarrah Forest and Warren IBRA regions.

C. Hollister and K.R. Thiele, 24 October 2023

Distribution

IBRA Regions
Jarrah Forest, Warren.
IBRA Subregions
Southern Jarrah Forest, Warren.
Local Government Areas (LGAs)
Albany, Denmark, Manjimup, Plantagenet.