| Straw berry clover | Red clover | Trifolium fragiferum L. | | Rabi | |
| Sunny khur | Paashaanabheda, Gorakshaganjaa, Aadaanpaaki, Shatkabhedi | Aerva lanata (L.) Juss. ex Schult. | Amaranthaceae | Kharif |  |
| Suryavarti, Rottler's Chrozophora | Shadevi | Chrozophora rottleri (Geiseler) A.Juss. ex Spreng. | Euphorbiaceae | Rabi |  |
| Swamp morning glory, water spinach | Kalmisag | Ipomea aquatica Forsk. Fl. | | Rabi | |
| Swollen finger grass | Rhodes grass | Chloris barbata SW | Poaceae | Kharif |  |
| Talong-na-puti (Tag.) | Bhantahi, Vrihati | Solanum violaceum Ortega | Solanaceae | Kharif |  |
| Tiger grass | Kans, Kahi | Saccharum spontaneum L. Mant. | Poaceae | Kharif |  |
| Tiger shrub, wild sage | Rai munia | Lantana camara Linn. | | Perennial | |
| Tiger-foot morning glory | Panch patri | Ipomoea pestrigritis L. | | Kharif | |
| Tiny morning glory | Pan bel | Convolvulus obscurus, Ipomoea fragilis | Convolvualceae | Kharif |  |
| Tiny Periwinkle, Tiny Vinca | Sada bahar | Catharanthus pusillius (Murrey) G.Don. | | Kharif | |
| Tongue weed | Daman paper | Oldenlandia corymbosa Linn. | Rubiaceae | Kharif |  |
| Toothed dock | Khata palak, Jungali palak | Rumex dentatus L. | | Rabi | |
| Trefoil Rattlepod | Jhunjhuna | Crotalaria medicaginea Lamarck | | Kharif | |
| Tropical sensitive pea | Chaks | Cassia absus Linn. | | | |
| Tropical spiderwort | Kena, Kanteri | Commelina beghalensis Linn. | | Kharif | |
| Turpeth root | | Operculina turpethum (L.) Silva Manso | | Rabi | |
| Umbrella Sedge | Motha | Cyperus difformis L. Cent. | Cyperaceae | Kharif |  |
| Upas tree | Bonnaya | Bonnaya brachiata Link. & Otto | Scrophulariaceae | Kharif |  |
| Velvet | Aphra kanghi | Abutilon indicum (L.) Sweet | Malvaceae | Rabi |  |
| Viper grass | Viper grass | Dinebra retroflexa (Vahl.) | Poaceae | Kharif |  |
| Water grass | Rats beard | Bulbostylis barbata (Rottb.) | Cyperaceae | Kharif |  |
| Water hyacinth, Keladi Bunting | Jalkumbhi | Eichhornia crassipes (Malay) | | | |
| Waterleaf, water spiny ball | Katathua, Talmakhana | Astercantha longifolia (L.) Nees | Astercanthaceae | Kharif |  |
| White edge morning-glory | Kasiratnam | Ipomoea angulata Lamk. | | Kharif | |