Species boundaries in plants may be weaker than in animals, and cross species hybrids are frequently attainable. A familiar example is peppermint, Mentha × piperita, a sterile hybrid involving Mentha aquatica and spearmint, Mentha spicata.[a hundred and fifteen] The various cultivated varieties of wheat are the results of many inter- https://archeroibul.fitnell.com/67406155/new-step-by-step-map-for-plant-care-tips