Photo 276214, (c) Liam O'Brien, some rights reserved (CC BY-NC), uploaded by Liam O'Brien

Attribution © Liam O'Brien some rights reserved Uploaded by robberfly Source iNaturalist Associated observations Photos / Sounds What Red Valerian (Centranthus ruber) Observer robberfly Date March 19, 2013 02:46 PM PDT Place 4009–4047 17th St, San Francisco, California, US (Google, OSM) Date Added March 19, 2013 02:49 PM PDT Description Major nectar source for Bay Area butterflies where this non-native has naturalized. 3 IDs Research Grade View Sizes small medium large original