Spiral

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Spiral (Na'vi name: 'Iheyu) is a spiritual concept in Na'vi culture, not yet fully understood.^{[citation needed]}

Associated with the interweaving of tree roots and Eywa, the spiral is the embodiment of life and the interconnectedness of all things on Pandora: among the songs of the Na'vi is the Song of the Spiral, which embodies unity between the people, the forest, and Eywa. The spiral can also refer to the support structure located in each Hometree. In the center of each Hometree grows a spiral formation that serves to support the general structure of the giant tree and is used by the Na'vi as a natural staircase.

At the base of the Hometree, the spiral is wide and thanks to the mushrooms that grow on it, it resembles a real ladder with steps, but closer to the top it turns into uncoiling branches, reminiscent of the bases of DNA, so you have to jump further to get to the nest of tamed banshees.

Pandoran Flora
Avatar	Anemone Tree • Anemonid • Bean Pod • Beanstalk • Binary Sunshine • Bladder Polyp • Cat Ear • Dapophet • Delta Tree • Direhorse Pitcher Plant • Episoth • Fiddlehead • Fortune Leaf Cane • Goblin Thistle • Helicoradian • Hermit Bud • Hometree • Hookagourd • Liana • Magellum • Melon Tree • Omatikaya Hometree • Pandoran Flora • Panopyra • Pitcher • Puffball Tree • Puffer • Razor Palm • Scorpion Thistle • Shade Leaf Cane • Sol's Delight • Spartan • Spiny Whips • Thistle Bud • Tree of Souls • Tree of Voices • Unidelta Tree • Vein Pod • Warbonnet Fern • Woodsprite
The Way of Water	Airbell • Banshee of Paradise • Beluga Flytrap • Chalice Plant • Daisy Anemone • Fantail • Leopard Palm • Lionberry • Lizard Tree • Mantis Orchid • Papa Mantis Tree • Red-Tipped Grass • Spirit Tree • Starry Doughnut
Fire and Ash	Phalanxia
The Game	Ar'lek Seed • Baby Stem • Baja Tickler • Banana Fruit • Beanstalk Palm • Bloated Stem • Canalyd • Cillaphant • Cycad • Dakteron • Dandetiger • Essence Seed • Eywa's Roots • Fire Weed • Grub Plant • Howling Pod • Hyneman • Lichen • Lilypad Tree • Mine Pod • Nerve Plant • Organic Door • Pineapple Plant • Potent Fruit • Rainbow Plant • Ravenous Plant • Roosterhead • Spike Plant • Stickyplant • Thorn Wall • Thornspear • Thorny Paw • Tree of Vision • Tulipthorn • Twisted Lily • Vegetal Chest • Willow Tree (plant)
Frontiers of Pandora	Acrid Pod • Archer's Thicket • Aurora Fern • Balloon Grass • Banshee's Tail • Bellsprig • Billow Tree • Blistering Root • Blood Leaf Tree • Blood Urchin • Bloom of Echoes • Blue Cloud Moss • Bonethorn • Bow Fern • Braided Crimson Tree • Bruise Moss • Canyon Bellsprig • Canyon Coiling Sunshine • Canyon Eyethorn • Canyon Lift Vine • Canyon Pine • Canyon Puffball Tree • Canyon Reed • Canyon Thistle • Canyon Vein Pod • Cave Root • Cavemouth Root • Chandelier Bromeliad • Cloud Pine Tree • Cloud Spitter • Clouded Lily • Coiling Sunshine • Coronis Nest • Corrosive Breath Spore • Creeping Moss • Crimson Rock Orchid • Damson Squash • Dawn Fruit • Dawn Shrub • Dawnsheen Tree • Dragon Stalk • Dusk Leaf Tree • Eyethorn • Feather Blade • Flamingo Orchid • Flare Lichen • Floating Thunderpod • Fog Bloom • Forest Gateway Lily • Forest Pine • Forest Plank Epiphyte • Forest Seaweed • Forest Sentinel Fan • Fortune's Fruit • Fountain Tree • Frillstem Tree • Gateway Lily • Harpoon Bush • Heartlands Bellsprig • Heartlands Direhorse Pitcher Plant • Heartlands Feather Blade • Heartlands Fire Seed • Heartlands Flamingo Orchid • Heartlands Reed • Heartlands Sheltering Bushpod • Heartlands Woetree • Hidden Fruit • Islet Palm • Kinglor Flower • Kinglor Nesting Tree • Kite Manta Nest • Lift Vine • Lightning Grass • Lilac Cloud Spitter • Mature Floating Thunderpod • Mature Sunrise Lantern • Mermaid Tail • Mist Bloom • Mist Bloom Spores • Moonscarab Nest • Moonwood Tree • Mountain Rose • Murky Waterweed • Night Leaf Tree • Night Sky Moss • Pale Canyon Reed • Pale Coronis Egg Nest • Pale Fire Seed • Pale Pod Fruit • Pale Vine Fiber • Parasol Bush • Patient Elder • Petrified Tree • Plains Root • Plank Epiphyte • Pod Fruit • Poison Breath Spore • Pyrebloom • Ragtrunk Tree • Rain Thistle • Ravine Reed • Rib Plant • Rock Orchid • Sailfin Blossom • Sapphire Blood Leaf Tree • Scimitar Palm • Screecher's Reed • Scrubber Moss • Sentinel Fan • Shaded Waterweed • Shadow Spurs • Shell Fruit • Shelter Fruit • Sheltering Bushpod • Shrinkspur • Sick Eyethorn • Silt Reed • Skunk Palm • Sky Rock Moss • Snakewood • Spice Bell • Spineberry Fruit • Spires Greatwood • Spore Root • Stairfoot Tree • Stormglider Nest • Stormsky Bamboo • Sunflower Gigantus • Sunrise Lantern • Sunset Reed • Tana'rìng • Tarsyu • Tarsyu Sapling • Trail Moss • Tranquility Bulb • Twisted Scale Tree • Vine Fiber • Water Moon Lily • Whip Leaf • Whisperstalk • Windbent Tree • Windbent Tree Root • Windseeker • Yearning Tree • Yoten Nest
Rites of Passage	Celia Fruit Tree • Fire Seed • Spirit Willow • Squid Fruit Tree
Other	Bioluminescence • Centipede • Cheadle • Gallery: Flora • Harvesting Fruit • Leaf Pitcher • Popsicle • Push Fruit Tree • Sari • Scarpaton • Sháo Plant • Snaketree • Spore • Sun Lily • Syekalin • Urchin Succulent • Water Lily • Yalna • Yovo Fruit • Zooplantae