Persicaria lapathifolia  (L.) S. F. Gray 1822, Nat. Arr. Brit. Pl. 2: 270 Ampfer-Knöterich Basionym: Polygonum lapathifolium L. 1753, Species Plantarum 1: 360 Originalbeschreibung / original description: "6. POLYGONUM floribus pentandris semidigynis staminibus corollae regulari aequalibus. Persicaria floribus pentandris digynis, corolla regulari staminibus aequali. Wach. ultr. 257. [1] Persicaria florum staminibus quinis semidigynis, stylo bifido corollae regulari aequantibus. Hort. cliff. 42. [2] Persicaria major, lapathi foliis, calyce floris purpureo. Tournef. inst. 510. [3] Raj. suppl. 119. [4] Persicaria Hydropiper. Lob. ic. 315. [5, Fig. ⇒] Habitat in Gallia."

[1] Wachendorff, E. J. (1747): Hortus Academicus Ultrajectinus. [?] [2] Linné, C. v. (1737): Hortus Cliffortianus. - Amsterdam.

[3] Tournefort, J. P. de (1703): Corollarium institutionum rei herbariae in quo plantae 1356 munificentia Ludovici Magni in orientalibus regionibus observatae recensentur. - Paris: Typographia Regia.

[4] Ray, J. (1686): Historia plantarum : species hactenus editas aliasque insuper multas noviter inventas & descriptas complectens. - Londini: Typis Marić Clark. [5] L'obel, M. de (1591): Icones stirpium. - Antverpiae: Ex officina plantiniana.

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Fundpunkte 4439/34 Kyhna (15.09.2019, 13.09.2020) 4439/44 Delitzsch (27.08.2019, 19.08.2020) Beleg 4439/34 (ca. 51.516412, 12.263671), Wiedemar/Kyhna, Ackerfurche, 15.09.2019 [Herb.nr. 277] 4439/43 (ca. 51.516539, 12.264641), Wiedemar/Kyhna, Feldrain, 13.09.2020 [Herb.nr. 586] 4439/44 (ca. 51.521639, 12.336451), Delitzsch, ruderale Grabenböschung, 27.08.2019 [Herb.nr. 276] 4439/44 (ca. 51.520409, 12.330099), Delitzsch, Semiruderal, 19.08.2020 [Herb.nr. 525] 4439/44 (ca. 51.520409, 12.330099), Delitzsch, Semiruderal, 19.08.2020 [Herb.nr. 526]