Calflora   Family Index   O
Below is a list of plant families, and a list of genera within each family in California.
Click on family name to search for species in that family, or click on genus name to search for species in that genus.
Oleaceae Forestiera
Fraxinus
Jasminum
Ligustrum
Menodora
Olea
Syringa
Onagraceae Camissonia
Camissoniopsis
Chamerion
Chylismia
Chylismiella
Circaea
Clarkia
Epilobium
Eremothera
Eulobus
Fuchsia
Gayophytum
Ludwigia
Neoholmgrenia
Oenothera
Taraxia
Tetrapteron
Ophioglossaceae Botrychium
Botrypus
Ophioglossum
Sceptridium
Orchidaceae Calypso
Cephalanthera
Corallorhiza
Cypripedium
Epipactis
Goodyera
Listera
Malaxis
Piperia
Platanthera
Spiranthes
Zeuxine
Orobanchaceae Aphyllon
Bellardia
Castilleja
Chloropyron
Cordylanthus
Dicranostegia
Kopsiopsis
Orobanche
Orthocarpus
Parentucellia
Pedicularis
Phelipanche
Triphysaria
Orthodontiaceae Orthodontium
Orthotrichaceae Codonoblepharon
Lewinskya
Nyholmiella
Orthotrichum
Pulvigera
Ulota
Zygodon
Oxalidaceae Oxalis