Oligomeris sp.
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Family: Resedaceae · Type: Perennial · Native
Oligomeris sp. is a native California perennial in the Resedaceae family.
How to tell it apart
vs Stillingia: Oligomeris has 2-4 petals in each tiny flower; Stillingia lacks petals entirely with separate male/female flowers.; vs Ambrosia: Oligomeris has small flowers with 2 visible petals in spikes; Ambrosia has no petals, just green composite flower heads.; vs Reseda: Oligomeris has only 2 petals and 3-4 stamens; Reseda has 4-6 petals and 10-25 stamens.; vs Impatiens: Oligomeris has 2-4 petals in dense spikes; Impatiens has showy spurred asymmetric flowers.; vs Pelargonium: Oligomeris has tiny 2-petaled flowers in spikes; Pelargonium has showy 5-petaled flowers in umbels.
Frequently asked questions
Is Oligomeris sp. native to California?
Yes. Oligomeris sp. is native to California (recorded as native).
What plant family does Oligomeris sp. belong to?
Oligomeris sp. is in the Resedaceae family, genus Oligomeris.
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.