| § Tagetes lucida |  Mexican Mint Marigold |
| § Tamarix chinensis | Salt Cedar |
| § Tecoma stans | Yellow Bells |
| § Tetraneuris acaulis | Angelita Daisy |
| § Tetraneuris scaposa | Four-nerve Daisy |
| § Thymophylla acerosa | Prickleleaf Dogweed |
| § Thymophylla pentachaeta | Common Dogweed |
| § Tiquilia canescens | Shrubby Tiquilia |
| § Tiquilia greggii | Plume Tiquilia |
| § Tiquilia hispidissima | Hairy Crinklemat |
| § Trixis californica | Trixis |
| § Ungnadia speciosa | Mexican Buckeye, Monilla |
| § Vauquelinia californica | California Rosewood |
| § Vauquelinia corymbosa var. angustifolia | Chisos Rosewood, Guayal, Palo Prieto |
| § Vauquelinia corymbosa var. heterodon | Slimleaf Rosewood |
| § Vernonia marginata | Ironweed |
| Viguiera multiflora | Showy Goldeneye |
| § Viguiera stenoloba | Skeletonleaf Goldeneye |
| § Wedelia acapulcensis var. hispida | Orange Zexmenia, "Devil's River" |
| § Yucca baccata | Banana Yucca, Datil |
| § Yucca elata | Soaptree Yucca, Palmella |
| § Yucca faxoniana | Spanish Bayonet |
| § Yucca rigida | Blue Yucca |
| § Yucca schottii | Schott Yucca |
| § Yucca thompsoniana | Beaked Yucca |
| § Yucca torreyi | Spanish Dagger |
| § Zephyranthes longifolia | Copper Zyphyr-lily |
| § Zinnia acerosa | Desert Zinnia |
| § Zinnia grandiflora | Prairie Zinnia |
| § Ziziphus obtusifolia | Graythorn |
Last Update: 9 Sep 2006