Lasiopetalum parvuliflorum is a species of flowering plant in the family Malvaceae and is endemic to the south-west of Western Australia. It is an erect, spreading shrub with hairy stems, oblong to linear leaves and green or cream-coloured flowers.
Lasiopetalum parvuliflorum is an erect, spreading shrub that typically grows to a height of and has hairy stems. The leaves are long and wide. The flowers are borne on a pedicel long with bracteoles long below the base of the sepals. The sepals are petal-like, green or cream-coloured, long fused at their bases and hairy. The petals are long and , the anthers long on a filament long. Flowering occurs in September and October.
Lasiopetalum parvuliflorum was first formally described in 1868 by Ferdinand von Mueller in Fragmenta Phytographiae Australiae from specimens collected by James Drummond. The specific epithet (parvuliflorum) means "very small-flowered".
This lasiopetalum grows near creeks and in winter-wet areas in the Esperance Plains and Mallee biogeographic region of south-western Western Australia.
Lasiopetalum parvuliflorum is listed as "Priority Three" by the Government of Western Australia Department of Biodiversity, Conservation and Attractions, meaning that it is poorly known and known from only a few locations but is not under imminent threat.