| Name | Accession number | Synonym | Species | Habit | Locality |
|---|---|---|---|---|---|
| KUTULUKSKAYA | K-54213; PI-639453 | LUTESCENS-83,KINEL[1369]; | TR.AE | S | RUS:Samara |
| KUUDUSU-1149 | TR.DR | S | TUR | ||
| KUUSIKU | K-38465; EST-00415; AUS-17392 | TR.AE | W | EST | |
| KUUSIKU-75 | K-34224 | TR.AE | W | EST | |
| KUWERTS-OSTPREUSSISCHER-DICKKOPF | RICP-01C0105462 | TR.AE | W | DEU | |
| KUYALNIK | TR.AE | W | UKR:Odessa | ||
| KUYALNIK-89 | K-64734 | TR.AE | W | UKR | |
| KUYANTAEVKA-1 | TR.AE | S | RUS:Bashkiriya | ||
| KUYANTAEVSKAYA-3 | KUYANTAEVKA-3[000]; | TR.AE | S | RUS:Bashkiriya | |
| KUZDUK-BIDAI | K-42343; | TR.AE | W | KAZ | |
| KUZGA | K-39154; | TR.AE | S | UZB | |
| KUZGYU | K-39178 | TR.AE | W | UZB | |
| KUZGYU-BIDAI | K-35418 | TR.AE | W | KGZ | |
| KUZGYU-BUGDAI | K-35422; PI-565385 | TR.AE | W | KGZ | |
| KUZLIK | K-35344 | TR.AE | W | KAZ | |
| KUZLUK | TR.AE | W | KAZ | ||
| KUZLYUK-KIZYL-KYLTYRYK | K-35616; PI-565387 | TR.AE | W | UZB | |
| KUZNECHANKA | K-31143; | TR.AE | W | RUS:Penza | |
| KVAZAR | TR.SE | I | RUS:Stavropol | ||
| KVINTA | K-63467 | LUTESCENS-20596[1371]; | TR.AE | S | RUS:Chelyabinsk |