oenothera fruticosa – sundrop or prairie sundrops two flowers horizontal

america biodiversity bloom blossom boise botanical botany climate conservation day daytime ecology environment evening family field flora floral flower flowering flowers four fruticosa garden genus habitats heart idaho landscape leaved leaves meadow meadows narrow narrowleaf native natural nature north northwest oenothera onagraceae open outside pacific perennial petals phytology plant plants primrose shaped species summer sundrop sundrops thetinyphotographer toothed wild wildflower woodlands yellow