Not an accepted name (status: unknown). The accepted name is Chenopodium album var. album.

Chenopodium album var. lanceolatum (Muhl. ex Willd.) Klett & Richt., 1753 4% complete

No common name

Sp. Pl.: 219 (1753)

There is no corrections for Chenopodium album var. lanceolatum yet.