Determined according to the botanical key provided in The Flora of the Republic of Macedonia (Micevski, 1995).
Lifeform: Annual; Therophyte according to the Raunkiær system.
Distribution: Native from Macaronesia, Northwest Africa, Europe to Russian Far East and northeast China and West Himalaya according to the Plants of the World Online portal (Royal Botanic Gardens, Kew).
Habitat: Disturbed ground, in and near settlements and other ruderal habitats.
Flowering period: Summer- early fall: JUL, AUG, SEP.
Polygonum arenastrum– habit. Osogovo, Ponikva, 18.09.2022. Photo by Trajche Dimitrovski.Polygonum arenastrum– habit. Osogovo, Ponikva, 18.09.2022. Photo by Trajche Dimitrovski.Polygonum arenastrum– habit. Osogovo, Ponikva, 18.09.2022. Photo by Trajche Dimitrovski.Polygonum arenastrum – stem with flowers. Osogovo, Ponikva, 18.09.2022. Photo by Trajche Dimitrovski.Polygonum arenastrum – stem with flowers. Osogovo, Ponikva, 18.09.2022. Photo by Trajche Dimitrovski.Polygonum arenastrum – flowers. Osogovo, Ponikva, 18.09.2022. Photo by Trajche Dimitrovski.Polygonum arenastrum – flowers. Osogovo, Ponikva, 18.09.2022. Photo by Trajche Dimitrovski.Polygonum arenastrum – flowers. Osogovo, Ponikva, 18.09.2022. Photo by Trajche Dimitrovski.Polygonum arenastrum – fruiting perianth. Osogovo, Ponikva, 18.09.2022. Photo by Trajche Dimitrovski.Polygonum arenastrum – stem with fruiting perianths. Osogovo, Ponikva, 18.09.2022. Photo by Trajche Dimitrovski.Polygonum arenastrum – fruiting perianth. Osogovo, Ponikva, 18.09.2022. Photo by Trajche Dimitrovski.Polygonum arenastrum – stems. Osogovo, Ponikva, 18.09.2022. Photo by Trajche Dimitrovski.Polygonum arenastrum – main and secondary stems. Osogovo, Ponikva, 18.09.2022. Photo by Trajche Dimitrovski.Polygonum arenastrum – stems with leaves. Osogovo, Ponikva, 18.09.2022. Photo by Trajche Dimitrovski.Polygonum arenastrum – leaf of main stem (right) and leaf of secondary stem (left) with similar size. Osogovo, Ponikva, 18.09.2022. Photo by Trajche Dimitrovski.Polygonum arenastrum – adaxial side of leaf and stem with ochrea. Osogovo, Ponikva, 18.09.2022. Photo by Trajche Dimitrovski.Polygonum arenastrum – adaxial side of leaf. Osogovo, Ponikva, 18.09.2022. Photo by Trajche Dimitrovski.Polygonum arenastrum – fruits. Osogovo, Ponikva, 18.09.2022. Photo by Trajche Dimitrovski.Polygonum arenastrum – habit. Osogovo, Ponikva, 27.08.2022. Photo by Trajche Dimitrovski.Polygonum arenastrum – habit. Osogovo, Ponikva, 27.08.2022. Photo by Trajche Dimitrovski.Polygonum arenastrum – habit. Osogovo, Ponikva, 27.08.2022. Photo by Trajche Dimitrovski.Polygonum arenastrum – flowering stem. Osogovo, Ponikva, 27.08.2022. Photo by Trajche Dimitrovski.Polygonum arenastrum – flowering stem. Osogovo, Ponikva, 27.08.2022. Photo by Trajche Dimitrovski.Polygonum arenastrum – flowering stem. Osogovo, Ponikva, 27.08.2022. Photo by Trajche Dimitrovski.Polygonum arenastrum – stem with flowers, leaves and ochreas. Osogovo, Ponikva, 27.08.2022. Photo by Trajche Dimitrovski.Polygonum arenastrum – stem with flowers, leaves and ochreas. Osogovo, Ponikva, 27.08.2022. Photo by Trajche Dimitrovski.Polygonum arenastrum – adaxial side of leaves. Osogovo, Ponikva, 27.08.2022. Photo by Trajche Dimitrovski.
References:
Micevski, K. (1995). The Flora of the Republic of Macedonia Vol. I, Book 3. Macedonian Academy of Sciences and Arts.
Osogovo nature 