Sentence:  The latter species was collected only once in this survey on "A. flavescens" but is widespread on both tropical and temperate <WSD>acacias</WSD> in Australia. 
Meaning of the word marked with <WSD> tags:  A shrub or tree of the tribe Acacieae. (First attested around 1350 to 1470.)<ref name=SOED>Brown, Lesley, ed. "The Shorter Oxford English Dictionary." 5th. Oxford: Oxford University Press, 2003.</ref>