Fairy slipper; Calyso orchid (Calypso bulbosa) by Diane Renkin. Original public domain image from Flickr https://www.rawpixel.com/image/4038680/photo-image-flower-tree-plantFree Image from public domain licenseVijf segmenten van een met irissen beschilderde knop (c. 1897) by Anatole Alexis Fournier https://www.rawpixel.com/image/13791466/image-paper-flowers-plantFree Image from public domain licenseViola blanda, Sweet White Violet, Howard County, Md, Helen Lowe Metzman https://www.rawpixel.com/image/8756857/photo-image-flower-plant-public-domainFree Image from public domain licenseLupine along the Pacific Crest Trail, Three Sisters Wilderness on the Willamette National Forest. Photo by Matthew Tharp.… https://www.rawpixel.com/image/4074778/photo-image-flower-plant-purpleFree Image from public domain licenseWildflowers on the Colville National ForestGroup of Wildflowers in Field on the Colville National Forest in Washington.… https://www.rawpixel.com/image/4075386/photo-image-flower-tree-plantFree Image from public domain licenseBlue penstemon (Penstemon cyaneus) by Diane Renkin. Original public domain image from Flickr https://www.rawpixel.com/image/4038683/photo-image-flower-plant-birdFree Image from public domain licenseWild IrisHartweg's Iris (Iris hartwegii ssp. australis) occurs from the eastern San Gabriel Mountains, San Bernardino… https://www.rawpixel.com/image/4030389/photo-image-flower-plant-personFree Image from public domain licenseEarly Blue Violet - Viola adunca. Original public domain image from Flickr https://www.rawpixel.com/image/3310033/free-photo-image-acanthaceae-blossom-botanyFree Image from public domain licenseUit twee delen bestaande prent, voorstellende: links de zomer met iris en malus en rechts de winter met narcis en prunus… https://www.rawpixel.com/image/13767124/image-paper-cartoon-faceFree Image from public domain licenseBlue lilac flowers blooming in a garden. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3294701/free-photo-image-blossom-blueberry-cc0Free Image from public domain licenseWest Clear Creek Trail #17 provides the only marked and maintained access to the lower reaches of West Clear Creek… https://www.rawpixel.com/image/3394263/free-photo-image-acanthaceae-amaryllidaceae-animalFree Image from public domain licenseBleeding heart on the Mt. Baker-Snoqualmie National Forest. Photo by Anne Vassar April 21, 2021. Original public domain… https://www.rawpixel.com/image/4074695/photo-image-flower-plant-lilyFree Image from public domain licenseCaulophyllum thalictroides 3, Blue Cohosh flower, Howard County, MD, Helen Lowe Metzman https://www.rawpixel.com/image/8756833/photo-image-flower-plant-public-domainFree Image from public domain licenseBela flowerNPS Photo by Neal Herbert. Original public domain image from Flickr https://www.rawpixel.com/image/3392492/free-photo-image-alaska-arbour-bering-land-bridge-national-preserveFree Image from public domain licenseAxel Antas-Bergkvist 2015. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3294385/free-photo-image-blossom-cc0-creative-commonsFree Image from public domain licenseAn iris; flowers and birds; two ladies, one with a baby. Ink drawings. https://www.rawpixel.com/image/13994349/iris-flowers-and-birds-two-ladies-one-with-baby-ink-drawingsFree Image from public domain licenseDiamond D Farms is thriving with all types of flowers emerging on the property. Photo taken June 21, 2019 at Diamond D Farms… https://www.rawpixel.com/image/3335757/free-photo-image-acanthaceae-animal-beeFree Image from public domain licenseClose up of pea plants, July 1992. Original public domain image from Flickr https://www.rawpixel.com/image/3335546/free-photo-image-acanthaceae-agronomy-blossomFree Image from public domain licenseSeep monkeyflower - Mimulus guttatus by Jacob W. Frank. Original public domain image from Flickr https://www.rawpixel.com/image/4038563/photo-image-flower-plant-summerFree Image from public domain licenseLjubljana.. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3295066/free-photo-image-garden-marketing-car-automobileFree Image from public domain licenseMimosa Pudica Linn-Flower. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3340752/free-photo-image-animal-blossom-cc0Free Image from public domain licenseTook these pics on some walks around my hometown Lupburg in Bavaria. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3371995/free-photo-image-acanthaceae-blossom-cc0Free Image from public domain licenseIris Pallida by Pierre-Joseph Redouté (1759–1840). Original from Biodiversity Heritage Library. Digitally… https://www.rawpixel.com/image/2868253/free-illustration-image-iris-redoute-flowerFree Image from public domain licenseIris Pumila from The genus Iris by William Rickatson Dykes (1877-1925). Original from The Biodiversity Heritage Library.… https://www.rawpixel.com/image/2098350/vintage-iris-flower-posterFree Image from public domain licenseIrises (1910) painting in high resolution by Piet Mondrian. Original from the Minneapolis Institute of Art. Digitally… https://www.rawpixel.com/image/3219935/free-illustration-image-mondrian-modern-art-public-domain-flowersFree Image from public domain licenseIris from An illustration of the Egyptian, Grecian and Roman costumes by Thomas Baxter (1782–1821). Original from The… https://www.rawpixel.com/image/421010/free-illustration-image-angel-greek-mythologyFree Image from public domain licenseVintage tiger flower. Original from Biodiversity Heritage Library. Digitally enhanced by rawpixel. https://www.rawpixel.com/image/2880471/free-illustration-image-flower-botanical-vintageFree Image from public domain licenseKingfisher and irises (1900 - 1930) by Ohara Koson (1877-1945). Original from The Rijksmuseum. Digitally enhanced by… https://www.rawpixel.com/image/436548/free-illustration-image-flower-irises-japanese-artFree Image from public domain licenseBlue iris illustration from Les liliacées (1805) by Pierre Joseph Redouté (1759-1840). Original from New York… https://www.rawpixel.com/image/502068/free-illustration-image-iris-redoute-lilyFree Image from public domain licenseBarbary nut illustration from Les liliacées (1805) by Pierre Joseph Redouté (1759-1840). Original from New… https://www.rawpixel.com/image/502423/free-illustration-image-pierre-joseph-redoute-flowerFree Image from public domain licenseRhizomes of a Pogoniris and of a Regelia Iris from The genus Iris by William Rickatson Dykes (1877-1925). Original from The… https://www.rawpixel.com/image/2093476/vintage-iris-root-posterFree Image from public domain licenseTall bearded iris illustration from Les liliacées (1805) by Pierre Joseph Redouté (1759-1840). Original from… https://www.rawpixel.com/image/502202/free-illustration-image-iris-redoute-flowerFree Image from public domain licenseIris Setosa from The genus Iris by William Rickatson Dykes (1877-1925). Original from The Biodiversity Heritage Library.… https://www.rawpixel.com/image/2097124/vintage-iris-flower-posterFree Image from public domain licenseDwarf crested iris illustration from Les liliacées (1805) by Pierre Joseph Redouté (1759-1840). Original from… https://www.rawpixel.com/image/502286/free-illustration-image-pierre-joseph-redoute-iris-blueFree Image from public domain licenseLemonyellow iris illustration from Les liliacées (1805) by Pierre Joseph Redouté (1759-1840). Original from… https://www.rawpixel.com/image/502455/free-illustration-image-iris-redoute-flowersFree Image from public domain licenseBarbary Nut illustration from Les liliacées (1805) by Pierre-Joseph Redouté. Original from New York Public… https://www.rawpixel.com/image/501532/free-illustration-image-pierre-joseph-redoute-irisFree Image from public domain licenseDingy flag iris illustration from Les liliacées (1805) by Pierre Joseph Redouté (1759-1840). Original from New… https://www.rawpixel.com/image/502141/free-illustration-image-redoute-iris-pierre-josephFree Image from public domain licenseYellow banded iris illustration from Les liliacées (1805) by Pierre Joseph Redouté (1759-1840). Original from… https://www.rawpixel.com/image/502054/free-illustration-image-pierre-joseph-redoute-irisFree Image from public domain licenseMilky iris illustration from Les liliacées (1805) by Pierre Joseph Redouté (1759-1840). Original from New York… https://www.rawpixel.com/image/502494/free-illustration-image-iris-redoute-blue-flowersFree Image from public domain licenseIris Persica illustration from Les liliacées (1805) by Pierre Joseph Redouté (1759-1840). Original from New… https://www.rawpixel.com/image/501794/free-illustration-image-iris-redoute-pierre-josephFree Image from public domain licenseRainbow Pitta (Pitta Iris) illustrated by Elizabeth Gould (1804–1841) for John Gould’s (1804-1881) Birds of… https://www.rawpixel.com/image/321146/free-illustration-image-bird-rainbow-irisFree Image from public domain licenseGrass leaved iris illustration from Les liliacées (1805) by Pierre Joseph Redouté (1759-1840). Original from… https://www.rawpixel.com/image/502046/free-illustration-image-iris-grass-redouteFree Image from public domain licenseIris Purdyi from The Genus Iris (1913) by William Rickatson Dykes (1877-1925). Original from The Biodiversity Heritage… https://www.rawpixel.com/image/2098341/vintage-iris-flower-posterFree Image from public domain licenseHarlequin blueflag illustration from Les liliacées (1805) by Pierre Joseph Redouté (1759-1840). Original from… https://www.rawpixel.com/image/502009/free-illustration-image-iris-versicolor-redoute-pierre-josephFree Image from public domain licenseIris Hartwegii from The Genus Iris (1913) by William Rickatson Dykes. Original from The Biodiversity Heritage Library.… https://www.rawpixel.com/image/2098209/vintage-iris-flower-posterFree Image from public domain licenseSand iris illustration from Les liliacées (1805) by Pierre Joseph Redouté (1759-1840). Original from New York… https://www.rawpixel.com/image/502226/free-illustration-image-flower-iris-sand-redouteFree Image from public domain licenseSnake's head illustration from Les liliacées (1805) by Pierre-Joseph Redouté. Original from New York Public… https://www.rawpixel.com/image/501586/free-illustration-image-flower-public-domain-floral-snake-lilyFree Image from public domain licenseStinking iris illustration from Les liliacées (1805) by Pierre Joseph Redouté (1759-1840). Original from New… https://www.rawpixel.com/image/502115/free-illustration-image-redoute-iris-pierre-josephFree Image from public domain licenseYellow banded iris illustration from Les liliacées (1805) by Pierre Joseph Redouté (1759-1840). Original from… https://www.rawpixel.com/image/501989/free-illustration-image-redoute-background-irisFree Image from public domain licenseSiberian iris illustration from Les liliacées (1805) by Pierre Joseph Redouté (1759-1840). Original from New… https://www.rawpixel.com/image/502445/free-illustration-image-redoute-pierre-joseph-iris-sibiricaFree Image from public domain licenseSpider iris illustration from Les liliacées (1805) by Pierre Joseph Redouté (1759-1840). Original from New… https://www.rawpixel.com/image/502461/free-illustration-image-redoute-spider-pierre-josephFree Image from public domain licenseSiberian iris illustration from Les liliacées (1805) by Pierre Joseph Redouté (1759-1840). Original from New… https://www.rawpixel.com/image/502367/free-illustration-image-flower-redoute-pierre-josephFree Image from public domain licenseYellow iris illustration from Les liliacées (1805) by Pierre Joseph Redouté (1759-1840). Original from New… https://www.rawpixel.com/image/502020/free-illustration-image-green-leaves-flower-redouteFree Image from public domain licenseIris florentina illustration. Digitally enhanced from our own book, Medical Botany (1836) by John Stephenson and James Morss… https://www.rawpixel.com/image/326996/free-illustration-image-flower-iris-james-whiteFree Image from public domain license