1. The leaves of eastern black nightshade are triangular to elliptic. 2. It can also live on other black nightshade ( " Solanum nigrum " ). 3. It can be confused with other black nightshade species in the " Solanum nigrum " complex. 4. Cipollini and Levey studied two common weed species in the nightshade family, horse nettle and black nightshade . 5. Other names : Black nightshade , belladonna 6. Upon herbivory, systemin was down-regulated in black nightshade in contrast to the other peptides which are up-regulated after herbivory. 7. The leaves of the black nightshade " ( Solanum nigrum ) " and similar species, contain solanine, an alkaloid. 8. A comparison of the fruit shows that the black nightshade berries grow in bunches, the deadly nightshade berries grow individually. 9. Black nightshade is highly variable, and poisonous plant experts advise to avoid eating the berries unless they are a known edible strain.10. The life cycle starts with the fungus overwintering in crop residues or wild members of the Solanaceae family, such as black nightshade .
