Not an accepted name (status: rejected). The accepted name is Sanguisorba tenuifolia var. tenuifolia.

Sanguisorba tenuifolia var. alba Fisch. ex Link, 1821 4% complete

No common name

Enum. Hort. Berol. Alt. 1: 144 (1821)

There is no corrections for Sanguisorba tenuifolia var. alba yet.