edgepedia

All articles starting with P

28,818 articles

Prunus avium

Prunus avium, wild or bird cherry, sweet cherry, is a Rosaceae tree native from Europe to Afghanistan and North Africa, ancestor of cultivated sweet cherry, valued for premium hardwood and grown for fruit, with 224 synonyms.

Prunus cerasifera

Prunus cerasifera, the cherry plum or myrobalan plum (also Pissard plum, purpleleaf plum), is a diploid Eurasian Prunus tree used as a stone-fruit rootstock, ornamental, and wild genetic resource, native from SE Europe to the Himalaya.

Prunus cerasus

Prunus cerasus, the sour or tart cherry, is a tetraploid Rosaceae tree from the avium × fruticosa hybrid origin, grown for acidic fruit used in pies and processing; Montmorency dominates U.S. production, centered in Michigan.

Prunus domestica

Prunus domestica, the European plum, is a hexaploid fruit tree in the rose family cultivated for fresh fruit, prunes, and distilling, originating south of the Caucasus.

Prunus laurocerasus

Prunus laurocerasus, cherry laurel or common laurel, an evergreen Rosaceae shrub native from Serbia to northern Iran, widely grown for hedging, toxic leaves and seeds with cyanogenic glycosides, and invasive in parts of Central Europe.

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

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 necrotic ringspot virus

Prunus necrotic ringspot virus (PNRSV), an Ilarvirus in Bromoviridae, is a tripartite RNA plant virus with ~23 nm particles, pollen- and seed-borne, causing cherry rugose mosaic, almond calico, and rose mosaic worldwide.

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 salicina

Prunus salicina Lindl., the Japanese or Chinese plum (formerly P. triflora), a diploid Rosaceae stone-fruit tree native to China; source of most fresh-market plums, with a 318.6-Mb genome and high sharka susceptibility.

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 serrulata

Prunus serrulata, the Japanese cherry or hill cherry, is a deciduous cherry tree native to China and Korea and a parent of many ornamental flowering cherry cultivars.

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.

Prurigo nodularis

Prurigo nodularis (PN), also called chronic nodular prurigo, is a chronic inflammatory skin disease with intensely itchy firm nodules driven by an itch-scratch cycle; treated with topicals, phototherapy, methotrexate, and the biologics dupilumab and nemolizumab.

Pruritic urticarial papules and plaques of pregnancy

Pruritic urticarial papules and plaques of pregnancy (PUPPP, polymorphic eruption of pregnancy) is the most common dermatosis of pregnancy: an intensely itchy hive-like rash starting in third-trimester stretch marks, sparing the umbilicus, resolving after delivery with no fetal risk.

Pruritus of pregnancy

Pruritus of pregnancy (pruritus gravidarum), ICD-11 JA65.11: itching in 23–38% of pregnancies, from benign skin stretching to pregnancy-specific dermatoses such as ICP, PEP, and pemphigoid gestationis.

Pruritus of unknown cause

Pruritus of unknown cause (chronic pruritus of unknown origin, CPUO) is itch lasting over 6 weeks with no identifiable cause after exclusion workup; prevalence 7–45.9%, highest in older adults, with no FDA-approved therapy.

Prusa (Προύσα) (Bithynia)

Prusa (Προύσα), Prusa ad Olympum, ancient Bithynian city at the foot of Mt Olympus (Uludağ), founded by Prusias I with Hannibal tradition; Dio Chrysostom's civic-center renovation; modern Bursa, Turkey.

Prusa Research

Prusa Research is a Czech 3D printer manufacturer headquartered in Prague, founded by Josef Průša in 2012 and known for the Original Prusa line and Prusament filament.

Prusias ad Mare/Kios

Kios (Greek Κίος, Latin Cius), later Prusias ad Mare, was a Greek city on the Propontis in Asia Minor, founded around 626 BCE at modern Gemlik, Turkey.

Prussia

Prussia (Preußen): German kingdom founded 18 January 1701 from the Brandenburg dukedom, leader of German unification in 1871, formally abolished by Allied Control Council Law No. 46 on 25 February 1947.

Prussia (region)

Prussia (region): historical Baltic region between the Vistula and Memel rivers, homeland of the Baltic Prussians, conquered by the Teutonic Knights 1226–83; namesake of the Duchy and Kingdom of Prussia, divided after 1945 between Poland and the Soviet Kaliningrad District.

Prussian Academy of Sciences

Prussian Academy of Sciences (Preußische Akademie der Wissenschaften), founded in Berlin on 11 July 1700 by Elector Frederick III on Leibniz's initiative; reorganized under Frederick II, renamed under the GDR, dissolved 1991, continued as the Berlin-Brandenburg Academy of Sciences and Humanities.

Prussian Army

Prussian Army: the Hohenzollern land force of Brandenburg-Prussia and the German Empire, 17th century to 1918. Known for Frederick the Great, Scharnhorst's conscription reforms, the general staff, and victories at Königgrätz and Sedan.

Prussian blue

Prussian blue, also known as Berlin blue or Berliner Blau, is a dark blue pigment accidentally discovered in Berlin around 1704, the first modern synthetic pigment.

Prussian blue analogue cathode

A Prussian blue analog cathode is a positive electrode for rechargeable batteries, mainly sodium-ion cells, built on the open cyanide-bridged framework of Prussian blue and made cheaply by aqueous synthesis.

Prussian blue analogue sodium-ion battery

A Prussian blue analogue sodium-ion battery is a rechargeable battery whose cathode is an open-framework Prussian blue analog, prized for low cost, simple synthesis, and rapid charging.

Prussian blue analogues

Prussian blue analogues are a family of cyanide-bridged coordination polymers related to Prussian blue, with other transition metals replacing iron, studied for batteries and electrocatalysis.