Japanese oak (Quercus mongolica): tree branch with acorns. Watercolour. https://www.rawpixel.com/image/13983189/japanese-oak-quercus-mongolica-tree-branch-with-acorns-watercolourFree Image from public domain licenseLocupletissimi rerum naturalium thesauri accurata descriptio, et iconibus artificiosissimis expressio, per universam… https://www.rawpixel.com/image/13992846/image-plant-pattern-circleFree Image from public domain licenseYo-Sem-i-te Valley, California. Poo-see-nah-chuck-ka, (Large Acorn Cache). Cathedral Rocks, 2,600 Feet above Valley by… https://www.rawpixel.com/image/14313539/photo-image-plant-tree-mountainFree Image from public domain licenseCells and organisms, as seen through a microscope: twenty figures. Lithograph by L. Aldous, 1846. https://www.rawpixel.com/image/14000304/image-paper-plant-personFree Image from public domain licenseTwo fruiting citrus plants, one possibly the seville orange (Citrus aurantium). Wash drawing. https://www.rawpixel.com/image/13997031/image-paper-plant-artFree Image from public domain licenseSeven men on stage set of "The seven acorns". Photographic postcard, 1918-1920. https://www.rawpixel.com/image/13988349/seven-men-stage-set-the-seven-acorns-photographic-postcard-1918-1920Free Image from public domain licenseOrnamented borders of Tartary oak (Quercus McCormickii), anchors and a polar bear round images of the Antarctic Sea with… https://www.rawpixel.com/image/13990675/image-paper-penguins-bordersFree Image from public domain licenseA semi-naked man holding a hare in his outstretched right arm, and a vessel between his legs, is surrounded by a bird and a… https://www.rawpixel.com/image/13994511/image-cartoon-face-personFree Image from public domain licenseOak (Quercus species): leaves and twigs. Pen drawing, partially coloured. https://www.rawpixel.com/image/13999958/oak-quercus-species-leaves-and-twigs-pen-drawing-partially-colouredFree Image from public domain licenseEarthstars Geastrum.Geastrum is a genus of mushroom in the family Geastraceae. Many species are known commonly as… https://www.rawpixel.com/image/4023248/photo-image-plant-nature-foodFree Image from public domain licenseDescription des principales monstruosités dans l'homme et dans les animaux / précédée d'un discours sur la physiologie et la… https://www.rawpixel.com/image/13989797/image-plant-person-artFree Image from public domain licenseDoum palm (Hyphaene thebaica (L.) C.Martius): fruiting stem and fruit segments. Etching by G. D. Ehret, c. 1743. https://www.rawpixel.com/image/14001043/image-paper-cartoon-plantFree Image from public domain licensePrécis iconographique de médecine opératoire et d'anatomie chirurgicale / [Claude Bernard]. https://www.rawpixel.com/image/13988332/image-cartoon-plant-public-domainFree Image from public domain licenseThe fable of the acorn and the pumpkin: an acorn falls on a man resting under an oak tree on a grassy bank, with pumpkins… https://www.rawpixel.com/image/14006602/image-plant-person-treeFree Image from public domain licenseWax models of the viscera, etc. by Jean-Joseph Sue père, after his own dissections. Engraving, 1749. https://www.rawpixel.com/image/14009579/image-heart-cartoon-plantFree Image from public domain licenseCathedral Rock, 2600 feet, Yosemite Valley, Mariposa County, Cal.]/["Posinachucka" - Acorn Cache - by Carleton Watkins https://www.rawpixel.com/image/14300324/image-art-collage-mountainFree Image from public domain licenseJournal des Dames et des Modes, Costumes Parisiens, 3 août 1805, An 13, (658): Chapeau Paré (...) (1805) by anonymous and… https://www.rawpixel.com/image/13773248/image-paper-cartoon-plantFree Image from public domain licenseMichaelis Mercati Samminiatensis Metallotheca. Opus posthumum, auctoritate, & muificentiâ Clementis undecimi pontificis… https://www.rawpixel.com/image/14014668/image-plant-person-footballFree Image from public domain licenseWhitebark Pine SeedBushel basket of Whitebark Pine cones. At Trinity Ridge on the Boise National Forest. Photo by Lisa… https://www.rawpixel.com/image/4034838/photo-image-plant-foodFree Image from public domain licenseMof, gezien van vijf kanten (1645 - 1646) by Wenceslaus Hollar https://www.rawpixel.com/image/13776487/mof-gezien-van-vijf-kanten-1645-1646-wenceslaus-hollarFree Image from public domain licenseKind met Frygische muts wordt geslagen door een vrouw (1849) by Arnz and Co https://www.rawpixel.com/image/13762181/kind-met-frygische-muts-wordt-geslagen-door-een-vrouw-1849-arnz-andFree Image from public domain licenseCashes, or Indian Acorn Storehouses. by Thomas C Roche and Edward and Henry T Anthony and Co https://www.rawpixel.com/image/14296905/image-plant-wood-treeFree Image from public domain licenseBuilding Detail of the RKO Bushwick Theater in Brooklyn, New York City. Brooklyn Remains One of America's Best Surviving… https://www.rawpixel.com/image/8803398/photo-image-art-person-logoFree Image from public domain licenseThe larva and pupa of a gall fly next to a gall fly in natural size and magnified, a cross-section of an infested fruit and… https://www.rawpixel.com/image/13976878/image-paper-cartoon-plantFree Image from public domain licenseOrnamented borders of Tartary oak (Quercus McCormickii), anchors and a polar bear round circular images of the Antarctic… https://www.rawpixel.com/image/13978521/image-penguin-borders-cartoonFree Image from public domain licenseFruit and seed of the Raffia (Raphia) palm. Woodcut, 1611. https://www.rawpixel.com/image/13980265/fruit-and-seed-the-raffia-raphia-palm-woodcut-1611Free Image from public domain licenseKing Chinois (in or before 1828) by Pierre Félix van Doren https://www.rawpixel.com/image/13793046/king-chinois-in-before-1828-pierre-felix-van-dorenFree Image from public domain licenseConsole van de preekstoel in de Santa Croce te Florence (c. 1875 - c. 1900) by anonymous https://www.rawpixel.com/image/13755129/photo-image-flowers-art-patternFree Image from public domain licenseA variety of wigs. Engraving by R. Bénard after J.R. Lucotte, 1762. https://www.rawpixel.com/image/13991970/variety-wigs-engraving-benard-after-jr-lucotte-1762Free Image from public domain licenseEikenblad met gallen en eikels (1876 - 1951) by Theo Nieuwenhuis https://www.rawpixel.com/image/13792110/eikenblad-met-gallen-eikels-1876-1951-theo-nieuwenhuisFree Image from public domain licenseA dehiscing puffball (Lycoperdon species) and four types of clubmoss (Lycopodium species). Coloured etching by J. Pass, c.… https://www.rawpixel.com/image/14021908/image-plant-grass-medicineFree Image from public domain licenseAcorns and oak leaves design (1880) wallpaper in high resolution by William Morris. Original from The Smithsonian. Digitally… https://www.rawpixel.com/image/2714929/free-illustration-image-william-morris-seamless-vintage-wallpaperFree Image from public domain license