Pel-tar'uk
Pel-tar'uk is found on volcanic plains on Vulcan. These low-lying bright green shrubs produce small olive-green berries which are edible by Vulcans and humans. However, these berries are protected by thick toxic spines which can tear through normal clothing or robes and inject a painful neural poison which causes cramping and vomiting. The poison then induces a strength-sapping fever which fogs the mind and slows the reflexes. These spines, if carefully removed intact, are sturdy enough to be used as darts in a blowgun or flechette weapon.