Kan. Admin. Regs. § 4-2-9a
(a) The seeds of the following plant species shall not be present in agricultural seed at a rate per pound in excess of the number shown in the below chart:
| Common Name | Scientific Name | Seeds per Pound |
| silverleaf nightshade | Solanum elaeagnifolium Cav. | 45 |
| Carolina horsenettle | Solanum carolinense L. | 45 |
| dock | Rumex spp. | 45 |
| oxeye daisy | Leucanthemum vulgare Lam. | 45 |
| perennial sowthistle | Sonchus arvensis L. | 45 |
| giant foxtail | Setaria faberi R.A.W. Herrm. | 45 |
| hairy chess | Bromus commutatus L. | 45 |
| cheat | Bromus secalinus L. | 45 |
| buckhorn plantain | Plantago lanceolata L. | 45 |
| wild onion or garlic | Allium spp. | 18 |
| charlock | Sinapsis arvensis L. | 18 |
| wild mustards | Brassica spp. | 18 |
| treacle | Erysimum spp. | 18 |
| wild carrot | Daucus carota L. | 18 |
| morning glory | Ipomoea spp. | 18 |
| hedge bindweed | Calystegia sepium (L.) R. Br. | 18 |
| dodder* | Cuscuta spp. | 18 |
| field pennycress | Thlaspi arvense L. | 18 |
| wild oats | Avena fatua L. | 9 |
| climbing milkweed | Cynanchum laeve (Michx.) Pers. | 9 |
| jointed goatgrass | Aegilops cylindrica Host | 9 |
| black nightshade complex | Solanum ptychanthum Dunal | 9 |
| S. Americanum Mill. | 9 | |
| S. sarrachoides Sendtn. | 9 | |
| S. nigrum L. | 9 | |
| S. interius Rydb. | 9 | |
| wild buckwheat | Fallopia convolvulus L. | 9 |
| velvetleaf | Abutilon theophrasti Medik. | 9 |
| cocklebur | Xanthium spp. | 9 |
| Caucasian bluestem | Bothriochloa bladhii | 2 |
| yellow bluestem | Bothriochloa ischaemum | 2 |
| *except lespedeza seed other than sericea lespedeza (Lespedeza cuneata) which may contain 45 dodder seeds per pound |
(b) The total number of restricted weed seeds present per pound of agricultural seed shall not exceed 150 in the following agricultural seeds:
(c) The total number of hairy chess and cheat seeds present per pound of agricultural seed shall not exceed 2,500 in the following agricultural seeds:
(Authorized by K.S.A. 2-1427; implementing K.S.A. 2-1421; effective Dec. 8, 2023.)