Texas Gardening: Trying to ID this native plum, 1 by texasflora_com

texasflora_com wrote:
I'm sure everyone but me knows which plum this is. It probably grows all over the place. The plums ripen slowly over a month or two and are still ripening. They are probably the only wild plum that still has unripened and currently ripening fruit. I don't think it forms thickets like the low growing Chickasaw plum or whatever the other one is that grows in huge thickets everywhere. I think this one spreads by seed only. It's usually found at the edge of woods and on fence rows. I'd sure like to put a name on it.