Plants Pr to Ra
Prunus demissa | Western Choke Cherry | Various
Prunus domestica | Plum. Originated in … Bosnia and Herzegovina | Tree
Prunus emarginata | Bitter Cherry | Various
Prunus lannesiana | Japanese Cherry. Originated in … Japan | Tree
Prunus laurocerasus | Cherry Laurel | Tree
Prunus maritima | Beach Plum. Originated in … New England (US) | Shrub
Prunus 'Montmorency' | Cherry | Tree
Prunus nigra | Canadian Plum | Various
Prunus padus | European Bird Cherry, Hegg. Originated in … Norway | Tree
Prunus serotina | Wild Black Cherry | Tree
Prunus spinosa | Blackthorn, Slapetorn. Originated in … Norway;Bosnia and Herzegovina | Various
Prunus spp. | Japanese Mountain Cherry. Originated in … Japan | Various
Prunus tomentosa | Nanking Cherry | Shrub
Prunus virginiana | Chokecherry | Tree
Prunus yedoensis 'Akebono' | Yoshino Cherry | Tree
Pseudocydonia sinensis | Chinese Quince. Originated in … China | Various
Pseudogynoxys chenopodioides | Mexican Flame Vine | Vine
Pseudosasa japonica | Arrow Bamboo, Metake | Grass
Pseudotsuga menziesii | Douglas Fir | Tree
Psidium cattleianum | Stawberry Guava, Cattley Guava. Originated in … Brazil | Shrub
Psidium friedrichsthalianum | Wild Guava, Cas. Originated in … Costa Rica | Shrub
Psidium guajava | Guava, Sand Plum. Originated in … Columbia,Peru | Tree
Psilostrophe tagetina | . Originated in … Southwest US | Various
Psoralea | Scurvy-Pea. Originated in … South Africa | Various
Psoralea corylifolia | Scurf Pea, Bu Gu Zhi | Various
Psoralea physodes | California Tea. Originated in … Northwest US | Various
Psoralea spp. | California Tea | Various
Ptelea baldwinii | Hoptree | Various
Pteridium aquilinum | Bracken Fern, Bun Rainich, Brake. Originated in … Scotland;Eire;US | Fern
Pteris aquilina | Braken | Various
Pterocarpus marsupium | Malabar Kino | Various
Pterocarpus santalinus | Red Sandalwood, Red Sanders. Originated in … India | Various
Pterospermum acerifolium | . Originated in … East Indies | Various
Pterospermum lancaefolium | . Originated in … Asia | Various
Pterostyrax hispida | Epaulette Tree. Originated in … China,Japan | Various
Pueraria lobata | Ge Gen, Kudzu | Various
Pulicaria dysenterica | Meadow False Fleabane | Various
Pulmonaria angustifolia | Blue Lungwort | Various
Pulmonaria longifolia | | Various
Pulmonaria officinalis | Lungwort | Various
Pulmonaria saccharata | Bethlehem Lungwort, Bethlehem Sage | Various
Pulsatilla chinensis | Chinese Anemone, Bai Tou Weng | Various
Punica granatum | Pomegranate. Originated in … Persia,Afghanistan | Tree
Purshia glandulosa | Desert Bitterbrush, Waxy Bitterbrush | Various
Purshia tridentata | Antelope Bush | Various
Puschkinia scilloides | | Flower
Putoria calabrica | . Originated in … Spain,Greece | Various
Pycnanthemum virginianum | Virginia Mountain Mint, Wild Basil, Prairie Hyssop | Various
Pycnothymus rigidus | Wild Savory. Originated in … Florida | Various
Pygeum africanum | Pygeum | Various
Pyracantha coccinea | Scarlet Firethorn | Shrub
Pyracantha fortuneana | Chinese Firethorn, Scarlet Firethorn | Shrub
Pyrola americana | American Wintergreen | Various
Pyrola bracteata | Wintergreen | Various
Pyrola chlorantha | Wintergreen | Flower
Pyrola elliptica | Waxflower Shinleaf | Various
Pyrola rotundifolia | | Flower
Pyrola secunda | Wintergreen | Various
Pyrus angustifolia | Southern Crabapple. Originated in … Southern US | Tree
Pyrus baccata | Siberian Crab | Tree
Pyrus bretschneideris | Chinese White Pear | Tree
Pyrus calleryana | Callery Pear | Tree
Pyrus communis | European Pear | Tree
Pyrus coronaria | Wild Sweet Crab, Garland Crab | Tree
Pyrus floribunda | Crab | Tree
Pyrus ioensis | Prairie Crab | Tree
Pyrus malus | Apple, Epletre. Originated in … Norway | Various
Pyrus micromalus | Weeping Apple | Tree
Pyrus pyrifolia | Chinese Pear, Apple Pear, Asian Pear, Nashi, Crunch Pear, Sand Pear | Tree
Pyrus sambucifolia | Western Mountain Ash, Rowan Tree | Various
Pyrus sorbus | Service Tree | Various
Pyrus spectabilis | Chinese Flowering Crab | Tree
Pyrus ussuriensis | Chinese Pear, Asian Pear | Tree
Quercus acutissima | Sawtooth Oak. Originated in … Japan | Various
Quercus agrifolia | Coast Live Oak, Encina Oak | Tree
Quercus alba | White Oak. Originated in … New England (US) | Tree
Quercus arizonica | Arizona White Oak | Tree
Quercus chrysolepis | Arizona Scrub Oak, Canyon Oak | Tree
Quercus dentata | Oak. Originated in … Japan | Various
Quercus douglasii | Blue Oak | Tree
Quercus dumosa | California Scrub Oak | Tree
Quercus emoryi | Emory Oak | Tree
Quercus engelmannii | Engelmann Oak | Tree
Quercus falcata | Spanish Oak, Southern Red Oak | Tree
Quercus gambelii | Gambel Oak, Scrub Oak | Tree
Quercus garryana | Garry Oak | Tree
Quercus ilex | Holly Oak | Tree
Quercus kelloggii | California Black Oak | Tree
Quercus lobata | Valley Oak, Roble Oak, California White Oak. Originated in … North America | Tree
Quercus lusitanica | Lusitanian Oak | Various
Quercus macrocarpa | Bur Oak | Tree
Quercus marilandica | Blackjack Oak | Tree
Quercus nigra | Water Oak | Tree
Quercus palmeri | Palmer Oak | Tree
Quercus palustris | Pin Oak | Tree
Quercus prinus | Chestnut Oak | Tree
Quercus pungens | Scrub Oak, Small Oak. Originated in … Southwest US | Tree
Quercus rubra | Northern Red Oak | Tree
Quercus serrata | Oak. Originated in … Japan | Various
Quercus stellata | Post Oak | Tree
Quercus suber | Cork Oak | Tree
Quercus velutina | Black Oak. Originated in … United States | Tree
Quercus virginiana | Virginia Live Oak | Tree
Quercus wislizeni | Interior Live Oak | Tree
Quillaja saponaria | Soapbark | Various
Quisqualis indica | Rangoon Creeper. Originated in … Philippines,Burma,Malaya | Various
Ramona incana | Desert Ramona | Various
Ranunculus | Yellow Ranunculus, Buttercup | Flower
Ranunculus acris | Buttercup, Buidhaeg. Originated in … Scotland | Flower
Ranunculus asiaticus | Persian Buttercups | Flower
Ranunculus buchanani | . Originated in … New Zealand | Various
Ranunculus ficaria | Lesser Celandine, Pilewort | Various
Ranunculus repens | Creeping Buttercup | Various
Raphanus sativum | Winter Radish, Daikon | Various
Raphanus sativus | Cultivated Radish, Wild Radish | Various