Seed when castor beans have been ingested by animals. In addition, seeds containing amygdalin—apple, apricot, bitter almond, peach, plum, cherry, quince, and others—when consumed in sufficient amounts, may cause cyanide poisoning. Other seeds that contain poisons include annona, cotton, custard apple, datura, uncooked durian, golden chain, horse-chestnut, larkspur, locoweed, lychee, nectarine, rambutan, rosary pea, sour sop, sugar apple, wisteria, and yew. The seeds of the strychnine tree are also poisonous, containing the poison strychnine. The seeds of many legumes, including the common bean ("Phaseolus vulgaris"), contain proteins called lectins which can cause gastric distress if the beans are eaten without cooking.
Empire (apple) of Empire had received US plant patents. None of them were mutants of mutants: Empire (apple) Empire is the name of a clonally-propagated cultivar of apple derived from a seed grown in 1945 by Lester C. Anderson, a Cornell University fruit nutritionist who conducted open pollination research on his various orchards. In 1945, under the direction of A. J. Heinicke, scientists from the New York State Agricultural Experiment Station of Cornell University in Geneva, New York, harvested the Empire seed together with thousands of its siblings. The Geneva teams grew and tested ever dwindling sub-populations of the sibling group until