Wildlife Gardening: Is this a black beauty mulberry ? Or some other kind of mulberry tree , 3 by Livinginawe

Livinginawe wrote:
Long straight canes signify Morus alba. I had been in communication with Jay Young of Willis Orchard about selling incorrect plants (not just mulberry). He claims that if it has a black berry, it is Morus nigra (which is, of course, not true). I can verify your plant by microscopic examination of it\'s nuclei, if you like (entails mailing me a leaf). Black Mulberry (Morus nigra) has eleven times the DNA in it\'s nucleus as Morus alba or Morus rubra. I feel also that Willis grows seedling trees (other that by cuttings), because why would anyone knowingly propagate fruit trees with male characteristics (those are male catkins on your tree). I bought a similar tree from Willis in 2009. It only produces a dozen or so poor quality fruit each year.