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iNaturalist
Living photographs · CC0 / CC-BY
A worldwide community of naturalists, scientists and curious wanderers who photograph wild things and identify them together. Every photo we use is "research grade" — meaning real people agreed on what the plant is — and shared under an open license. It's citizen science at its most joyful, and it makes the natural world a little more knowable for everyone.
Go meet the naturalists →
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Wikimedia Commons
Illustrations & photos · Public Domain / CC
The free media library behind Wikipedia — tens of millions of images that belong to all of us. It's where centuries of botanical art and modern plant photography live side by side, kept open by volunteers who believe knowledge should be a gift, not a gate. We're endlessly grateful it exists.
Wander the commons →
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Köhler's Medicinal Plants
Botanical illustration · 1887 · Public Domain
Hermann Adolph Köhler's Medizinal-Pflanzen — hand-painted plates of healing plants from the 1880s, now free for all to use. More than a century later, these illustrations still teach the eye what a living monograph looks like. They're our quiet bridge between the old apothecary table and this one. (Hosted lovingly on Wikimedia Commons.)
Admire the plates →
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Every individual photographer
The people behind the pixels
Behind every image is a person who knelt in the dirt, framed the light, and chose to share it freely with a stranger. We name each of them in the credit beneath their photo. If one of these is yours: thank you, truly. You helped someone learn their medicine.
See their work in bloom →
Our promise: we only use images that are freely licensed for everyone — public domain, CC0, or Creative Commons with attribution — and we credit every one, every time, even when we aren't required to. It just feels right. If you ever spot a credit we've gotten wrong, tell us at hello@lunarclover.com and we'll fix it the same day.
