Smilax herbacea L. is most likely what you are looking at, or something within the same Smilax family. The berries hang from a single stem in a tight cluster resembling a dimpled Golf ball. The berries begin as green clusters and ripen to a dark purple or black in the fall.
Border grass has purple berries. Another name for it is Liriope muscari. Keep the berries away from children and pets.
Could be lilac.
SalalA North American plant of the heath family, with clusters of pink or white flowers and edible purple-black berries.- Small evergreen shrub of Pacific coast of North America having edible dark purple grape-sized berries (wordnetweb.princeton.edu/perl/webwn)
they grow in a cluster
Cuckoopint
The answer you're looking for is Cuckoopint.
American pokeweed, Pokeberry, Pokeweed, Red Ink PlantPhytolaccaceae (Pokeweed Family)
You plant: yellow magic beans, purple love berries, red dragon fruit. Add me on moshi monsters: skyfires
You plant: yellow magic beans, purple love berries, red dragon fruit. Add me on moshi monsters: skyfires
Too many to list here. A common one is Deadly Nightshade, which has marble-sized purple berries on it in late summer.
Poisonous poke berries grow in water and elderberries grow on land. Both of them are not really safe to eat. Comment from Asker: Poke Berries grow on land from what I have seen in Dallas, Texas. I found a plant growing behind an unattached garage. It had ripe purple berries on it. I almost ate them, but tried them out on a squirrel first, who sniffed and then walked away. I saw a picture on the internet of a pokeberry and it appears that the berries grow more in rows than clusters as is seen in elderberries.
It's weed that is purple caused by the sunlight during the growing process