The daylily Yellow Viper was hybridized by Gossard in 2008. Yellow Viper was hybridized by crossing (((Yellow Dynamo × Shinto Etching) × Tet. Spindazzle) × (Born Too Late × Crocodile Smile)). The color of Yellow Viper can be described as chrome yellow with heavy darker edge. It is a Tetraploid. It has a Unusual FormCascade form. It has a bud count of 28. It blooms in (Midseason,Rebloom). It's flowers measure (7.5 in, (19 cm)). It has 5 branches. It has a normal scape height of (34 in, (86 cm)). It is Very Fragrant.