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 plantWhite snakeroot or richweed (Eupatorium urticæfolium) as stock-poisoning plant.Collinsonia canadensis - richweed Mint Family (Lamiaceae)WHITE SNAKEROOT, RichweedThe Toxic Constituent o Rich-weed or White Snakeroot (Eupatoriuwi urticaefolium).rich weed plantField boundary effects on the composition of a species-rich weed community in southeastern France