Heteranthera reniformis Ruiz & Pav.

Taxonomy: Fam. Potenderiaceae// Genus: Heteranthera// Species: Heteranthera reniformis Ruiz & Pav.

Determined according to the botanical keys provided by Valentine (Pontederiaceae) and Webb (Heteranthera) in Tutin et al. (1980).

Lifeform: Annual or perennial aquatic plant rooted in mud; therophyte or hydrophyte according to the Raunkiær system.

Distribution: Native from Central and East USA to Tropical & Subtropical America; not native to the Osogovo region – introduced; common weed in the rice filed region bordering the southern side of Osogovo, also found inwards in the Osogovo region up to c. 700 m altitude (village of Rajchani).

Habitat: Aquatic plant found in ponds and other stagnant waters.

Flowering period: Late summer – autumn: SEP, OCT.

References:

Heteranthera reniformis Ruiz & Pav. Plants of the World Online portal, Royal Botanic Gardens, Kew. https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:698080-1 [Accessed 20.10.2024].

Heteranthera Ruiz & Pavon. Webb, D.A. in Tutin, T.G., Heywood, V.H., Burges, N.A., Moore, D.M., Valentine, D.H., Walters, S.M. & Webb, D.A. (1980). Flora Europaea. Volume 5: Alismataceae to Orchidaceae (Monocotyledones). Cambridge: Cambridge University Press, p. 85.

Pontederiaceae. Valentine, D.H. in Tutin, T.G., Heywood, V.H., Burges, N.A., Moore, D.M., Valentine, D.H., Walters, S.M. & Webb, D.A. (1980). Flora Europaea. Volume 5: Alismataceae to Orchidaceae (Monocotyledones). Cambridge: Cambridge University Press, p. 85.