Rosids

Prunus mahaleb

Prunus mahaleb, the mahaleb or St. Lucie cherry (Cerasus mahaleb), a Rosaceae tree native from Europe to Central Asia and Morocco, source of the mahleb spice and a major cherry rootstock.

Prunus mume, also called mei, ume, or Japanese apricot, is a Rosaceae tree native to southwest China, blooming fragrant flowers in winter and yielding acidic fruit used for umeboshi, medicine, and liquor.

Prunus padus

Prunus padus (bird cherry, European bird cherry, Mayday tree), Rosaceae tree of temperate Eurasia and Morocco; fragrant white racemes, black fruit, Least Concern, invasive ornamental in Alaska.

Prunus serotina

Prunus serotina, black cherry or rum cherry, a North American Rosaceae tree, largest native cherry and only commercially valuable one, Allegheny Plateau timber, invasive in European forests.

Prunus spinosa

Prunus spinosa, blackthorn or sloe, a spiny Rosaceae shrub native from Europe to Central Asia, Iran and NW Africa. White flowers before leaves, astringent sloe fruits used for sloe gin and pacharán; IUCN least concern.

Prunus subg. Cerasus

Prunus subg. Cerasus, the true cherries, is a subgenus of Prunus (Rosaceae) with about 50 Northern Hemisphere species including sweet cherry, sour cherry, and ornamental sakura; it originated in the Eastern Mediterranean–Central Asia before 11.57 Mya.

Prunus virginiana

Prunus virginiana (chokecherry), Rosaceae, a thicket-forming North American shrub or small tree with three varieties (virginiana, melanocarpa, demissa), astringent dark drupes, rhizomatous spread, strong fire resprouting, and hydrocyanic-acid pits.

Psophocarpus tetragonolobus

Psophocarpus tetragonolobus, the winged bean or goa bean, is a twining tropical legume grown in hot, humid regions for its edible pods, seeds, leaves, and tubers.

Psoralea

Psoralea L. (fountainbush) is a Cape-centered legume genus in tribe Psoraleeae, described by Linnaeus in 1753, native Mozambique to South Africa, with about 129 species after absorbing Otholobium.

Pterocarpus

Pterocarpus (padouk, narra, red sanders) is a pantropical legume tree genus in Fabaceae, tribe Dalbergieae, with winged indehiscent pods and red resin; prized timbers include P. indicus, P. soyauxii, and endangered P. santalinus.

Pterocarpus macrocarpus

Pterocarpus macrocarpus, Burma padauk, pradoo, thnong: a deciduous Fabaceae timber tree native to Indochina, 10-30 m tall, with red termite-resistant heartwood, winged pods, and EU Annex D trade controls.

Pterocarpus santalinus

Pterocarpus santalinus (red sandalwood, red sanders) is an Endangered Fabaceae tree endemic to southern India's Eastern Ghats, CITES Appendix II since 1995, yielding claret-red heartwood and the dye santalin for furniture, medicine, and instruments.

Pterocarya

Pterocarya (wingnuts), genus of six Juglandaceae tree species native from Türkiye and Iran to East Asia; Cenozoic relict with Caucasus–East Asia disjunction, winged nutlets in pendulous catkins, and Miocene divergence from Juglans.

Pueraria

Pueraria (kudzu vine genus) is a genus of tuberous-rooted climbing legumes in Fabaceae, tribe Phaseoleae, native to Asia and the W. Pacific; established by de Candolle in 1825, later shown polyphyletic and split into five genera including Haymondia and Toxicopueraria.

Purshia tridentata

Purshia tridentata, antelope bitterbrush, is a deciduous Rosaceae shrub native from British Columbia to the US Southwest, covering about 340 million acres, valued as mule deer and livestock browse, with Frankia nitrogen fixation and deep taproots.

Pussy willow

Pussy willow (Salix discolor, American pussy willow) is a North American willow shrub of wetlands, known for silky catkins opening before leaves in early spring; dioecious, a major early bee forage, and often confused with Eurasian Salix caprea.

Pyracantha

Pyracantha (firethorn) is a genus of six accepted evergreen, thorny Rosaceae shrubs native from southern Europe to China, grown for white spring flowers and red, orange, or yellow winter berries, prone to scab and fireblight.

Pyracantha coccinea

Pyracantha coccinea, scarlet firethorn (buisson ardent), a thorny evergreen Rosaceae shrub native from southern Europe to Iran, grown for white flowers and red berries, invasive in Florida, Brazil, and South Africa.

Pyrus

Pyrus is the pear genus of Rosaceae, native to temperate Eurasia and NW Africa, with about 77 accepted species, Occidental and Oriental clades, and independently domesticated European and Asian pears.

Pyrus calleryana

Pyrus calleryana, Callery or Bradford pear, is an Asian Rosaceae tree native to China, Korea, Japan, Taiwan, and Vietnam, planted ornamentally in the US since the early 1900s and now invasive there because cultivar cross-pollination yields viable, bird-dispersed seed.

Pyrus communis

Pyrus communis, the European pear, is a Rosaceae tree native from Europe to northern Iraq, domesticated separately in Europe and the Caucasus, fifth most produced fruit worldwide, with cultivars like Bartlett and Bosc.

Quercus acutissima

Quercus acutissima, the sawtooth oak (Japanese kunugi), is a deciduous oak native from the Himalaya to Korea and Japan, with bristle-tipped leaf teeth and biennial acorns.

Quercus cerris

Quercus cerris, Turkey oak (Saçlı Meşe), a fast-growing deciduous oak of section Cerris native to S. Europe to Türkiye and Anti-Lebanon; two-year acorns, bristly cups, drought-tolerant, IUCN least concern.

Quercus coccinea

Quercus coccinea, scarlet oak (also Spanish oak), an eastern US red oak of dry upland soils, 50-80 ft tall, with C-shaped leaf sinuses, scarlet fall color, thin fire-susceptible bark, and vigorous postfire sprouting; state tree of Washington, DC.

Quercus douglasii

Quercus douglasii, the blue oak (also iron oak, mountain white oak), is a drought-deciduous California endemic oak dominating foothill woodlands around the Central Valley; IUCN Least Concern, but low recruitment and projected range loss under climate change concern conservationists.