Part 5

69. Low shrubs, 6 inches to 2 feet high pasture rose 234 69. Not low shrubs 70

70. Leaves with 3 to 5 leaflets 71 70. Leaves with more than 5 leaflets 72

71. Stems trailing, usually on the ground dewberries 235 71. Stems climbing prairie rose (rare) 233

72. Thorns long, often branched honey locust 243 72. Thorns or prickles short 73

73. Leaflets ovate and with odd leaflet at tip prickly ash 246 73. Leaflets oblong and without odd leaflet at tip mesquite 240

74. Vines 75 74. Not vines 78

75. Leaves twice-pinnately compound pepper vine 263 75. Leaves palmately compound or with 3 leaflets 76

76. Three leaflets 77 76. Five or more leaflets Virginia creeper 262

77. Leaves succulent (thick and juicy), sometimes three-lobed instead of parted cow-itch vine (rare) 264 77. Leaves not succulent, leaflets always fully parted, plant often shrubby when young poison oak or poison ivy 251

78. Leaves twice-pinnately compound chinaberry 248 78. Leaves not twice-pinnate 79

79. Three leaflets (sometimes 5 on wafer ash) 80 79. More than 3 leaflets 82

80. Leaflets less than 2 inches long aromatic or ill-scented sumac 252 80. Leaflets 2 to 5 inches long 81

81. All leaflets stemless, twigs glossy wafer ash (rare) 247 81. Terminal leaflet longer stemmed than other two, twigs not glossy poison oak or poison ivy 251

82. Leaflets rounded toward tips 83 82. Leaflets acute or acuminate 84

83. Twigs dark green, leaflets not gland-dotted Eve’s necklace 244 83. Twigs not green, leaflets dotted with tiny amber glands river locust 245

84. Leaf margins smooth or nearly so 84A 84. Leaf margins distinctly toothed or serrate 86

84A. Leaves 1 to 3 feet long, 13 to 41 leaflets, twigs very stout tree of Heaven (rare) 248A 84A. Leaves less than 1 foot long, 8 to 21 leaflets, twigs not very stout 85

85. Leafy wings along stems between leaflets with odd leaflet at tip winged or dwarf sumac 250 85. Leaf stem not or rarely winged between leaflets without odd leaflet at tip soapberry (wild chinaberry) 257

86. Leaflets 5 to 7 87 86. Leaflets 9 to 31 88

87. Terminal leaflet usually broader toward tip and at least twice as large as lowest pair hickory 211 87. Terminal leaflet not broader toward tip and not much larger than others Spanish or Texas buckeye 256

88. Twigs reddish or purplish, a shrub smooth sumac 249 88. Twigs neither reddish nor purplish, trees 89

89. Pith of twigs dark and chambered black walnut 208 89. Pith of twigs not dark, continuous 90

90. Nut nearly cylindric, seed sweet pecan 209 90. Nut 4-angled, seed bitter bitter pecan (rare) 210

Leaves Compound and Opposite

91. Vines 92 91. Not vines 94

92. Leaves palmately compound (alternate) Virginia creeper 262 92. Leaves not palmately compound 93

93. Twice-pinnately compound (alternate) pepper vine 263 93. Once-pinnate trumpet creeper 280

94. Palmately compound fetid or Ohio buckeye 258 94. Not palmately compound 95