This section is from the book "Harper's Guide To Wild Flowers", by Caroline A. Creevey. Also available from Amazon: Harper's Guide To Wild Flowers.
P. angustifblia-----8 to 20 feet high, with few if any thorns.
Leaves, long, narrow, finely toothed, smooth. Fruit, small, reddish, thin-skinned, ripe May to July.
A Southern species, from Delaware to Florida, in dry soil.
 
Continue to: