Part 2

lenticel: air pore in the bark.

monoecious: bearing the two kinds of flowers on the same plant.

opaque: not admitting or transmitting light.

perfect: having both stamens and pistils in one flower, as most showy flowers have.

pistillate: possessing a pistil or pistils and lacking stamens; female, or fruit-bearing.

staminate: possessing stamens and lacking a pistil; male, or pollen-bearing.

translucent: admitting some light but not clear or transparent.

Spike Cyme Umbel Panicle Catkin Twigs Opposite winter bud leaf scar Alternate Flower Parts anther pistil stamen sepal petal Pea Shaped Flower

Elliptical Acute Tip Coarsely Serrate (toothed) Margin Lobed Rounded Pointed Oblong Crenate Margin Midrib Ovate Acuminate Tip Notched Margin Truncate Base Linear Heart Serrate Margin More than one main vein at the base Sickle Obovate Doubly Serrate Margin veins united near margin

Pinnate odd leaflet Palmate Twice Pinnate leaflet

KEY TO NATIVE WOODY PLANTS OF DALLAS COUNTY Based Principally On Leaves

Numbers below 200 refer to the key, above 200 to the guide (p. 20).

1. Leaves evergreen 2 1. Leaves deciduous 7

2. Leaves pinnately compound 71 2. Leaves not pinnately compound 3

3. Plants with very thick, fleshy, flattened, leaf-like stems, usually covered with many prickles prickly-pear cactus 269 3. Leaves not very thick and fleshy and not prickly except at tips 4

4. Leaves in large rosette close to ground 5 4. Leaves needle-like, not in rosettes 6

5. Leaves sword-shaped yucca 205 5. Leaves fan-shaped palmetto (rare) 203

6. Inner bark yellowish brown, berries light blue red cedar 201 6. Inner bark darker brown, berries larger and darker, purplish mountain cedar (rare) 202

7. Leaves simple 8 7. Leaves compound 67

8. Leaves and twigs alternate 9 8. Leaves and twigs opposite 54

Leaves Simple and Alternate

9. Leaves linear (long and narrow) 11 9. Leaves not linear 10

10. Leaves smooth and very glossy on both sides, broadly truncate at base, stems flattened cottonwood 207 10. Leaves not possessing all three characteristics as given in 10 above 12

11. Leaves usually less than ¾ inch wide, midrib yellowish and prominent on both sides willow 206 11. Leaves usually more than ¾ inch wide, midrib not yellowish nor prominent on both sides peach 239

12. Trunks or twigs with thorns or spines 13 12. Trunks and twigs without thorns or spines 18

13. Thorny vines greenbrier 204 13. Thorny trees or shrubs 14

14. Leaf margins entire (smooth) 17 14. Leaf margins not entire, variously serrate or toothed 15

15. Leaves either blunt at tip or shallowly lobed or cut, primary veins usually straight to margins, often doubly serrate red haws 232 15. Leaves pointed at tip, serrate, not cut or lobed, veins united or curving near margins 16