They are collections of drupes
We have no term " drupes " in American English. Sorry.
fruits with pits are also known as drupes or stone fruits. A drupe is a fruit with a hard stone or pit inside and contains a "fleshy" outer skin. Such as cherries,plums,peaches,dates,mangoes and apricots. Some berries are also drupes, such as raspberries and blackberries.
No. They are pomes.
Drupes, Berries, and Promes.
The white flowers on the blackberry bush come out in early April and after the bees pollinate the flowers they begin to turn into blackberries, which should be late April or early May.
They do not eat cactus, but they may eat blackberries.
From what I understand, Poison Sumac only grows in very wet areas such as bogs and wetlands. However common sumac looks very similar to a pecan. Eventually, the dense cluster of drupes (or sumac bobs) should give it away. As a extra note, I think the drupes are white on poison sumac.
Yes, you can safely freeze blackberries.
No, of course not...
The ISBN of "A Taste of Blackberries" by Doris Buchanan Smith is 978-0064402288.
A Grape Vine?