Special plant communities include rosaceous chaparral and oak-juniper woodlands.
British Dictionary definitions for rosaceous
of, relating to, or belonging to the Rosaceae, a family of flowering plants typically having white, yellow, pink, or red five-petalled flowers. The family includes the rose, strawberry, blackberry, and many fruit trees such as apple, cherry, and plum
of the colour rose; rose-coloured; rosy
C18: from Latin rosāceus composed of roses, from rosarose1