Calyophus Berlandieri - Square-Bud Primrose

Calyophus Berlandieri – Square-Bud Primrose

Most primroses are members of the Oenothera genus, which means that their stigma are X-shaped. Not so with Calyophus genus, which has a rounded stigma, which can be seen better if you click on the picture above. Usually the Square-Bud Primrose has a black throat and a black stigma, but this particular variety has yellow throat and stigma.   In bloom at a Williamson County park near me…