Water-clover, 17
Water-clover Family, 17
Water Fern, 17
Water Fern Family, 17
Water-grass, 37
Water-hyacinth, 50
Water-lettuce, 46
Watermeal, 47
Water-plantain, 20
Water-plantain Family, 20
Waterweed, 21
Websteria, 44
Weeping Lovegrass, 26
Whisk-fern, 10
White Colic-root, 51
White Fringed Orchid, 59
White .Sunnybell, 52
White-top Sedge, 41
Whorled Pogonia, 60
Widgeon-grass, 19
Wild Onion, 53
Wild-pine, 49
Wild-rice, 37
Wild Rye, 26
Wild Sarsaparilla, 52
Wild Taro, 46
Wild Yam, 55
Wiregrass, 23
Witchgrass, 29, 30
Wolffia, 47
Wolffiella, 47
Wood Fern, 16
Woodrush, 51
Woodsia, 16
Woodwardia, 16


Wool-grass, 44
Worm-vine, 62

Xyridaceae, 47
Xyris, 47

Yam Family, 55
Yams, 55
Yellow Blue-eyed-grass, 56
Yellow Canna, 57
Yellow Colic-root, 51
Yellow-eyed-grasses, 47
Yellow-eyed-grass Family, 47
Yellow Foxtail, 35
Yellow Nut Sedge, 39
Yellow Sunnybell, 52
Yew Family, 17
Yews, 17
Yucca, 55
Yucca, 55

Zamia, 17
Zannichellia, 19
Zannichelliaceae, 19
Zebrina, 50
Zephyranthes, 54
Zephyr-lilies, 54
Zeuxine, 62
Zigadenus, 53
Zingiberaceae, 57
Zizania, 37
Zizaniopsis, 37
Zoysia, 37
Zygadenus, 53