Yellowray Fremonts-gold          

Yellowray Goldfields          

Yellowspine Thistle          

Yellowtops          

Yerba De Cabra          

Yerba De Faja          

Yerba De Pasmo          

Yerba De Peo          

Yerba De Plata          

Yerba De San Juan          

Yerba Porosa          

Yosemite Tarweed          

Yosemite Woolly Sunflower          

Youngia          

Yucatan Camphorweed          

Yukon Aster          

Yukon Fleabane          

Yukon Groundsel          

Yukon Hawkweed          

Yukon Wormwood