Plant Database (by name)

Oriental poppy - Papaver orientale L.

ornamental jewelweed - Impatiens glandulifera Royle

Orono sedge - Carex oronensis Fern.

orpine stonecrop - Sedum debile S. Wats.

orthosiphon - Orthosiphon Benth.

orthothecium moss - Orthothecium rufescens (Brid.) Schimp. in B.S.G.

orthotrichum moss - Orthotrichum affine Brid.

orthotrichum moss - Orthotrichum anomalum Hedw.

orthotrichum moss - Orthotrichum consimile Mitt.

orthotrichum moss - Orthotrichum cupulatum Brid.

orthotrichum moss - Orthotrichum diaphanum Brid.

orthotrichum moss - Orthotrichum gymnostomum Bruch ex Brid.

orthotrichum moss - Orthotrichum pallens Bruch ex Brid.

orthotrichum moss - Orthotrichum pulchellum Brunt. in Winch. & Gateh.

orthotrichum moss - Orthotrichum pumilum Sw.

orthotrichum moss - Orthotrichum rupestre Schleich. ex Schwaegr.

orthotrichum moss - Orthotrichum stramineum Hornsch. in Brid.

orthotrichum moss - Orthotrichum striatum Hedw.

orthotrichum moss - Orthotrichum tenellum Bruch ex Brid.

Osage false foxglove - Agalinis densiflora (Benth.) Blake

osage orange - Maclura pomifera (Raf.) Schneid.

Osceola's plume - Zigadenus densus (Desr.) Fern.

Osgood Mountain milkvetch - Astragalus yoder-williamsii Barneby

Osterhout's beardtongue - Penstemon osterhoutii Pennell

ostrich fern - Matteuccia struthiopteris (L.) Todaro

Otay mesamint - Pogogyne nudiuscula Gray

Otay tarweed - Deinandra conjugens (Keck) B.G. Baldwin

othake - Palafoxia sphacelata (Nutt. ex Torr.) Cory

Ouachita false indigo - Amorpha ouachitensis Wilbur

oval dry rock moss - Grimmia ovalis (Hedw.) Lindb.

oval-leaf blueberry - Vaccinium ovalifolium Sm.

oval-leaf milkweed - Asclepias ovalifolia Dcne.

oval-leaf sedge - Carex cephalophora Muhl. ex Willd.

ovate false fiddleleaf - Hydrolea ovata Nutt. ex Choisy

ovate goatgrass - Aegilops geniculata Roth

ovate marsh fern - Thelypteris ovata R. St. John

ovate pterygoneurum moss - Pterygoneurum ovatum (Hedw.) Dix.

ovate spikerush - Eleocharis ovata (Roth) Roemer & J.A. Schultes

ovateleaf cacalia - Arnoglossum ovatum (Walt.) H.E. Robins.

ovateleaf hawthorn - Crataegus ovata Sarg.

overcup oak - Quercus lyrata Walt.

Owens Valley beardtongue - Penstemon confusus M.E. Jones

Owens Valley sidalcea - Sidalcea covillei Greene

owl's-claws - Hymenoxys hoopesii (Gray) Bierner

owlfruit sedge - Carex stipata Muhl. ex Willd.

Owyhee mudwort - Limosella acaulis Sessé & Moc.

Owyhee sage - Artemisia papposa Blake & Cronq.

ox-eye - Buphthalmum salicifolium L.

oxeye daisy - Leucanthemum vulgare Lam.

oxlip - Primula elatior (L.) Hill