Author Archives: hta

Camelia sinensis is an evergreen shrub or tree, long cultivated in China but now also elsewhere, maintained by pruning and … More →

The seed extract of the fruit of Vitis vinifera is a rich source of one of the most beneficial groups … More →

Centella asiatica is a herbaceous perennial plant native to India, China, Indonesia, Australia, the South Pacific, Madagascar, southern and central … More →

Hydrastis canadensis is a perennial herb with a knotty yellow rhizome, native of North America, used by Amerindians for a … More →

Under this name three different species are distinguished: Panax quinquefolium or American ginseng, Panax ginseng or Korean ginseng, and Eleutherococcus … More →

Gingko biloba is a deciduous tree some 30-40 meters high, 1-1.5m in diameter, that may live for a thousand years … More →

Zingiber officinale is an erect perennial with thick tuberous rhizomes, native of southern Asia, but now extensively cultivated in the … More →

Alium sativum is a perennial plant native to Turkestan and eastern Russia, but cultivated for thousands of years in China … More →

Tanacetum parthenium is a member of the sunflower family, and its name a corruption of the word “febrifuge” denoting its … More →

Trigonella foenum graecum is an annual bush, which despite its name is not common in Greece, being much more common … More →