San Mateo County

Showing 1,001–1,050 of 1,546.

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  Oenothera suffrutescens (Ser.) W.L. Wagner & Hoch Native OESU3

  scarlet beeblossom · Onagraceae
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  Onopordum acanthium L. Introduced ONAC

  Scotch cottonthistle · Asteraceae
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  Orobanche bulbosa (A. Gray) G. Beck Native ORBU

  chaparral broomrape · Orobanchaceae
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  Orobanche californica Cham. & Schltdl. Native ORCA2

  California broomrape · Orobanchaceae
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  Orobanche californica Cham. & Schltdl. ssp. californica Native ORCAC2

  California broomrape · Orobanchaceae
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  Orobanche fasciculata Nutt. Native ORFA

  clustered broomrape · Orobanchaceae
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  Orobanche uniflora L. Native ORUN

  oneflowered broomrape · Orobanchaceae
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  Osmorhiza berteroi DC. Native OSBE

  sweetcicely · Apiaceae
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  Oxalis albicans Kunth Native OXAL

  radishroot woodsorrel · Oxalidaceae
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  Oxalis albicans Kunth ssp. pilosa (Nutt.) Eiten Native OXALP

  radishroot woodsorrel · Oxalidaceae
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  Oxalis corniculata L. Native OXCO

  creeping woodsorrel · Oxalidaceae
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  Oxalis oregana Nutt. Native OXOR

  redwood-sorrel · Oxalidaceae
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  Oxalis pes-caprae L. Introduced OXPE

  Bermuda buttercup · Oxalidaceae
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  Packera breweri (Burtt Davy) W.A. Weber & Á. Löve Native PABR11

  Brewer's ragwort · Asteraceae
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  Panicum capillare L. Native PACA6

  witchgrass · Poaceae
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  Papaver somniferum L. Introduced PASO2

  opium poppy · Papaveraceae
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  Parapholis incurva (L.) C.E. Hubbard Introduced PAIN

  curved sicklegrass · Poaceae
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  Paraserianthes lophantha (Willd.) I.C. Nielsen Introduced PALO8

  plume albizia · Fabaceae
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  Parentucellia latifolia (L.) Caruel Introduced PALA28

  broadleaf glandweed · Scrophulariaceae
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  Paronychia franciscana Eastw. Introduced PAFR

  San Francisco nailwort · Caryophyllaceae
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  Paspalum distichum L. Native PADI6

  knotgrass · Poaceae
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  Pectocarya pusilla (A. DC.) A. Gray Native PEPU

  little combseed · Boraginaceae
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  Pedicularis densiflora Benth. ex Hook. Native PEDE

  Indian warrior · Scrophulariaceae
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  Pedicularis dudleyi Elmer Native PEDU

  Dudley's lousewort · Scrophulariaceae
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  Pelargonium grossularioides (L.) L'Hér. ex Aiton Introduced PEGR12

  gooseberry geranium · Geraniaceae
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  Pelargonium vitifolium (L.) L'Hér. ex Aiton Introduced PEVI8

  grapeleaf geranium · Geraniaceae
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  Pellaea andromedifolia (Kaulf.) Fée Native PEAN2

  coffee cliffbrake · Pteridaceae
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  Pellaea mucronata (D.C. Eaton) D.C. Eaton Native PEMU

  birdfoot cliffbrake · Pteridaceae
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  Penstemon heterophyllus Lindl. Native PEHE3

  bunchleaf penstemon · Scrophulariaceae
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  Penstemon heterophyllus Lindl. ssp. purdyi D.D. Keck Native PEHEP

  Purdy's penstemon · Scrophulariaceae
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  Pentachaeta alsinoides Greene Native PEAL19

  tiny pygmydaisy · Asteraceae
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  Pentachaeta bellidiflora Greene Native PEBE

  whiteray pygmydaisy · Asteraceae
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  Pentachaeta exilis (A. Gray) A. Gray Native PEEX4

  meager pygmydaisy · Asteraceae
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  Pentachaeta exilis (A. Gray) A. Gray ssp. exilis Native PEEXE

  meager pygmydaisy · Asteraceae
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  Pentagramma triangularis (Kaulf.) Yatsk., Windham & E. Wollenw. Native PETR7

  goldback fern · Pteridaceae
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  Pentagramma triangularis (Kaulf.) Yatsk., Windham & E. Wollenw. ssp. triangularis Native PETRT

  goldback fern · Pteridaceae
• ⚘
  Pericallis hybrida B. Nord. Introduced PEHY13

  common ragwort · Asteraceae
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  Perideridia gairdneri (Hook. & Arn.) Mathias Native PEGA3

  Gardner's yampah · Apiaceae
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  Perideridia gairdneri (Hook. & Arn.) Mathias ssp. gairdneri Native PEGAG

  Gairdner's yampah · Apiaceae
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  Perideridia kelloggii (A. Gray) Mathias Native PEKE

  Kellogg's yampah · Apiaceae
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  Petasites frigidus (L.) Fr. Native PEFR5

  arctic sweet coltsfoot · Asteraceae
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  Petasites frigidus (L.) Fr. var. palmatus (Aiton) Cronquist Native PEFRP

  arctic sweet coltsfoot · Asteraceae
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  Phacelia californica Cham. Native PHCA

  California phacelia · Hydrophyllaceae
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  Phacelia ciliata Benth. Native PHCI2

  Great Valley phacelia · Hydrophyllaceae
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  Phacelia distans Benth. Native PHDI

  distant phacelia · Hydrophyllaceae
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  Phacelia divaricata (Benth.) A. Gray Native PHDI2

  divaricate phacelia · Hydrophyllaceae
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  Phacelia imbricata Greene Native PHIM

  imbricate phacelia · Hydrophyllaceae
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  Phacelia imbricata Greene ssp. imbricata Native PHIMI

  imbricate phacelia · Hydrophyllaceae
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  Phacelia malvifolia Cham. Native PHMA2

  stinging phacelia · Hydrophyllaceae
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  Phacelia nemoralis Greene Native PHNE2

  shade phacelia · Hydrophyllaceae