... hardy north of Washington. The figure shows only one of the lowest and shortest side divisions (pinnæ) of the leaf. The pinnæ increase in length and number of leaflets to the end of the leaf.[Pg ... bloom, ½ to 1 in. in diameter, yellow, orange, or red; skin tough and bitter. Stone with two sharp edges. A small, thorny tree, 8 to 20 ft. high, common in woodlands and on river-banks. Many improved ... wood, and on old trees very rough bark with long, deep furrows. Native; Pennsylvania, west and south, and extensively planted and naturalized throughout. A number of varieties, some of which...