Frank R. Paul's Man-Eating Giant Plant, Amazing Stories Sept 1927

While botanists never did engineer carnivorous megaflora capable of snatching pith-helmeted explorers skyward, this lurid cover absolutely nailed humanity's enduring fear of nature fighting back. Frank R. Paul's signature chromolithographic bravado depicts a massive alien pitcher plant — its mottled, cactus-like stalk towering grotesquely — seizing a soldier mid-air with muscular tendrils, while a second terrified explorer drops his rifle and flees through a jungle of oversized Venus flytraps and strange conifers. Pure weird-fiction biology rendered in screaming red and gold.