We went to see the exhibition “The Fabric of Wildflowers” at Council House in Perth a few days back. It features many familiar West Australian wildflowers made out of fabric by Thelma Knox during the second half of the 20th century.
The flowers above are Cowslip Orchids (Caldenia flava). You can see the real thing below, photographed in Kings Park earlier this year. They reportedly flower from July to December, but we have only ever seen them in late winter and early spring.