Eiter, Lauren C Seasonal variation in the leaf essential oil composition of Zanthoxylum clava-herculis growing in Huntsville, Alabama. [electronic resource] - Natural product communications Mar 2010 - 457-60 p. digital Publication Type: Journal Article ISSN: 1934-578X Subjects--Topical Terms: AlabamaGas Chromatography-Mass SpectrometryOils, Volatile--chemistryPlant Leaves--chemistrySeasonsWeatherZanthoxylum--chemistry