Romneya sp.
Matilija poppy, Matilija Poppy
Family: Papaveraceae · Type: Shrub · Native
Romneya sp. (Matilija poppy) is a native California shrub in the Papaveraceae family.
How to tell it apart
vs Argemone: Shrub with deeply lobed leaves, not prickly-spiny herbaceous plant.; vs Rosa: Six white petals (not five), leaves deeply divided into narrow segments.; vs Cistus: Six white petals around golden center, not five petals with simple leaves.; vs Artemisia: Spectacular large white flowers 4+ inches across, not tiny in dense clusters.; vs Papaver: Large woody shrub with 6 petals, not herbaceous annual with 4 petals.
Frequently asked questions
Is Romneya sp. native to California?
Yes. Romneya sp. is native to California (recorded as native).
What plant family does Romneya sp. belong to?
Romneya sp. is in the Papaveraceae family, genus Romneya.
Related species
Other California species in the same genus, family, or bioregion.
Sources: Jepson eFlora · CalPhotos
Last updated 2026-04-14
Data from The California Species Project — 14,000+ California species with verified data from CNPS, CDFW, USFWS, Cal-IPC, and more.