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Key to Trees: GROUP B

GROUP B Compound leaves, alternately attached

1. The trees are armed. (have thorns or spines) Go to #2
+ The trees are unarmed. (no thorns or spines) Go to #4
2. Thorns on thorn, often extremely thorny, leaves once or twice compound. Fruit a wide, flat pod, dark brown when mature, 10-18" long.

HONEY LOCUST

+ No thorns on thorns Go to #3
3. The bark has corky outgrowths tipped with short thorns. Leaflets often have prickles

HERCULES CLUB

+ Compound leaf branches into two parts; stout straight thorns up to 2" long. Fruit a rounded pod, 6-9” long

HONEY MESQUITE

4. Leaves are twice-compound, leaflets coarsely toothed or lobed. Fruit a small round ball, green or yellow when mature

CHINABERRY

+ Leaves are once-compound, margins smooth or toothed, but leaves are not lobed. Go to #5
5. Leaflets are finely toothed. Go to #6
+ Leaflets have smooth margins. Go to #7
6. Largest leaflets near the middle of leaf, last leaflet often small or missing. 15-23 leaflets, bark is dark and cracked into rough diamonds when mature.

BLACK WALNUT

+ Largest leaflet near the end of the leaf, and there is usually a terminal leaflet present; leaf has 11-17 curved leaflets. Bark is gray, very rough and craggy.

PECAN

7. Leaflets are oval shaped, small. Fruit hanging in a "string of beads."

EVE’S NECKLACE

+ Leaflets are lanceolate Go to #8
8. Bark is light gray; leaflets 7-19, alternate on rachis, usually no terminal leaflet; mild smell when crushed.

SOAPBERRY

+ Bark is cinnamon colored; usually has a terminal leaflet, except on very young trees; leaflets have strong, peppery scent when crushed.

CHINESE PISTACHE

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Posted by lisa281 lisa281, March 29, 2020 23:11

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