Science Art: Misc Pollen, by Dartmouth Electron Microscope Facility.

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A bouquet of flowers, and one of the deadliest poisons known to humankind.

From the image’s Wikimedia Commons page:

Pollen from a variety of common plants: sunflower (Helianthus annuus), morning glory (Ipomoea purpurea), hollyhock (Sildalcea malviflora), lily (Lilium auratum), primrose (Oenothera fruticosa) and castor bean (Ricinus communis).

Hollyhocks and morning glories are lovely; castor beans are where we get the emetic/biodiesel/laxative/skin conditioner castor oil… and ricin.