Undergrowth by H.E. Roulo

In H.E. Roulo's sci-fi/horror short story, Undergrowth, Torsten is a xenobotanist whose specialization in dangerous plants has already meant hideous death for someone he loved. The exotic lumentera vine is an invaluable commodity. But when the lumentera blooms, the bait is set in a mind game whose outcome is as uncertain as Torsten’s sanity.