A Cuban vine "communicates" with bat pollinators by emitting an echo through its acoustically-designed leaves. Scientists say the plant is the nocturnal analog of bright flowers that attract visually-oriented pollinators.
A glacier, a rainforest, and a forest of upside-down trees—naturally fallen spruce and hemlock, repurposed as flower pots—are some of the wonders in Alaska's Mendenhall Valley.
To celebrate the season, botanic gardens and conservatories decorate their collections with lights, ribbons, and sculptures. From Washington's glowing grapes to Nevada's illuminated cacti, gardens feature their emblematic plants as well as the always-lovely poinsettia.