A population of the shrub Solanum cookii Symon was discovered in a small, isolated patch of semi-evergreen vine thicket on granite scree north of Collinsville in the northern Brigalow Belt, Queensland. This is a 140 km southward extension to the known range for this species and is in an area of lower annual rainfall than it has previously been recorded in. This observation highlights the importance of small, disjunct patches of semi-evergreen vine thicket in dry landscapes for maintaining biodiversity.