Sorghum vulgare var. sudanense (Piper) Hitchcock

Sorghum vulgare var. sudanense (Piper) Hitchcock is a synonym sensu FNA Ed. Comm., 2003b of:

Sorghum bicolor subsp. ×drummondii (Steudel) de Wet, an accepted subspecies name sensu FNA Ed. Comm., 2003b.