Polygonum aviculare subsp. calcatum (Lindm.) Thell. Polygonum aviculare subsp. calcatum (Lindm.) Thell.is new combination for Polygonum calcatum Lindm. in Bot. Not. 1904: 139. 1904Taxon for this namePolygonum aviculare subsp. calcatum (Lindm.) Thell.
