giant foxtail(n = noun.plant) - two species of coarse annual foxtails that are naturalized weeds in United States;
is a kind of foxtail, foxtail grass

foxtail, foxtail barley, foxtail grass, foxtail millet, foxtail orchid, gas giant, giant, giant anteater, giant armadillo, giant bamboo, giant buttercup, giant cane, giant chinkapin, giant clam, giant cockroach, giant conch, giant coreopsis, giant crab, giant eland, giant fern, giant fir, giant fulmar, giant garlic, giant granadilla, giant helleborine, giant hornet, giant hyssop, giant kangaroo, giant lizard, giant moa, giant northwest shipworm, giant panda, giant petrel, giant pigfish, giant potato creeper, giant puffball, giant red paintbrush, giant reed, giant ryegrass, giant salamander, giant scallop, giant schnauzer, giant scrambling fern, giant sequoia, giant silkworm, giant silkworm moth, giant squid, giant star, giant star grass, giant stock bean, giant sunflower, giant taro, giant timber bamboo, giant tortoise, giant water bug, giant willowherb, green foxtail, little giant, meadow foxtail, pacific giant salamander, red giant, red giant star, yellow foxtail, yellow giant hyssop