Species boundaries in plants can be weaker than in animals, and cross species hybrids are sometimes achievable. A well-recognized instance is peppermint, Mentha × piperita, a sterile hybrid involving Mentha aquatica and spearmint, Mentha spicata.[115] The various cultivated varieties of wheat are the result of several inter- and intra-unique crosses https://snakes91357.blogvivi.com/27342546/the-best-side-of-rainforests