Living tissue = cambium (thin layer under bark). Heartwood = dead structural wood. Decay fungi hollow the center over decades—tree remains alive and functional.
A "whorl" = set of branches originating at same height (annual node). Finding one preserved inside a hollow trunk shows the tree's growth history—fascinating but not scientifically rare.
Enter in nature photography contests (Nikon Small World, local camera clubs, Audubon). Publication credit requires submission to editorial outlets—AllExperts doesn't publish photos.
Gall Formation on Savannah Holly: Causes and Management
Fungus at Oak Base: Understanding Root Rot Conks and Tree Longevity
Fruitless Mulberry Decline: Bark Peeling, Borers, and End-of-Life Management
Flowering Cherry Decline: Scratch Test for Life and Pruning Strategy
Conifer Leaning and Browning on One Side: Natural Self-Pruning or Problem?
Sugar Maple Northern Tooth Fungus: Emergency Branch Removal Protocol
Bird's Nest Fungus at Elm Tree Base: Harmless Mulch Dweller
Hollow Oak Tree Near House: Managing Heart Rot Safely
Debunking 'Insivianvaculosis': What a Hollow Tree Really Means for Tree Health
Chitalpa Tree Dead? Scratch Test Decides
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