PseudoPod 825: Flowering Evil
“Flowering Evil” first appeared in Planet Stories, Summer 1950 Captain Bjornson shook a grizzled head. “I never saw a plant I liked the looks of less,” he said. “I don’t know how he got it through the planetary plant quarantine. You take my advice, Amy, and watch out for it.” He took another of the little geela nut cookies from the quaint old lucite platter, and bit into it… Source
Quasar links out; the story lives on Pseudopod, where the author gets the click.