This native tree is commonly known as stony ridge wattle.
Acacia semirigida is described as a "higher dicot" in the Leguminosae (Caesalpinioideae, mimosoid clade) family.
In the Queensland Nature Conservation Act it is classified as Least Concern. Under the Federal Environment Protection Biodiversity Conservation Act it is not classified.
No Fraser Coast region records. Nearest record just north of Childers.
It has been recorded in the Wide Bay district in the Queensland Herbarium Census but is not listed as occurring in the Fraser Coast region in Queensland Herbarium Wildlife Online.
Reported at 0 Fraser Coast localities: .
Fraser Coast distribution based on unverified field reports.