Walnut

Water Dispersal

Water Potential

Water Stress

Water Striders

Water Hyacinth

Water Cycle

Watermelon

Wavelength

(light)

Weasels

Weed

Wheat

Wheat Flour

Wheat Germ

Wheat Rust

Wheat seed

                    DIAGRAM:  

                          PHOTO:  Wheat Seed Longitudinal Section
                                           Wheat Seed Longitudinal Section
                                           Wheat Seed Longitudinal Section

White Flour

Whither

This is a term that generally refers to leaves as they die.  They wither, or wrinkle, turn brown or other colors and finally fall from the tree.  Withering is the wrinkling and turning color part of the leaf's death.  The falling off the tree is called abscission.

Whole Wheat Flour

Whorled

Whorled refers to the arrangement of either buds or leaves along the stem.  Whorled budding or leaves is two buds or leaves per node.

                    DIAGRAM:  Whorled Leaves

                          PHOTO:  

Whorl

Willows

Wilt

Wind Dispersal

                    DIAGRAM:  Seed Dispersal

                          PHOTO:  

Wings

Winter Dormancy

Wisk Ferns

Wither

(leaves during abscision)

Wolves

Wood

Wood is composed of xylem tissue and is found in the center of the tree.

Worms