权威例句
Milk Sickness, the Result of Richweed Poisoning.
THE PHYTOCENOLOGY OF THE RICHWEED, ABSINTHIUM-LEAF (AMBROSIA ARTEMISIIFOLIA Z., ASTERACIA)
The toxic constituent of richweed or white snakeroot (Eupatorium Urticœfolium).–A reprint from Journal of Agricultural Research, S...
White snakeroot or richweed (Eupatorium urticæfolium) as stock-poisioning plant
White snakeroot or richweed (Eupatorium urticæfolium) as stock-poisoning plant.
Collinsonia canadensis - richweed Mint Family (Lamiaceae)
WHITE SNAKEROOT, Richweed
The Toxic Constituent o Rich-weed or White Snakeroot (Eupatoriuwi urticaefolium).
rich weed plant
Field boundary effects on the composition of a species-rich weed community in southeastern France
