Ambrosia artemisiifolia L.

Taxonomy: Fam. Compositae// Genus: Ambrosia// Species: Ambrosia artemisiifolia L.

Determined according to the botanical keys provided by Hansen in Tutin et al. (1976).

Lifeform: Perennial; Hemicryptophyte according to the Raunkiær system.

Distribution: Native from Subarctic America to U.S.A. and introduced worldwide according to the Plants of the World Online portal (Royal Botanic Gardens, Kew).

Habitat: Roadsides and disturbed ground. The plant is not native to the Osogovo region and it is found only as a ruderal plant.

Flowering period: Summer – autumn: AUG, SEP.

Ambrosia artemisiifolia – habit. Gorge of “Kochanska” River near lake “Gradche”, 08.09.2023. Photo by Trajche Dimitrovski.
Ambrosia artemisiifolia – habit. Gorge of “Kochanska” River near lake “Gradche”, 08.09.2023. Photo by Trajche Dimitrovski.
Ambrosia artemisiifolia – habit. Gorge of “Kochanska” River near lake “Gradche”, 08.09.2023. Photo by Trajche Dimitrovski.
Ambrosia artemisiifolia – habit. Gorge of “Kochanska” River near lake “Gradche”, 08.09.2023. Photo by Trajche Dimitrovski.
Ambrosia artemisiifolia – habit. Gorge of “Kochanska” River near lake “Gradche”, 08.09.2023. Photo by Trajche Dimitrovski.
Ambrosia artemisiifolia – habit. Gorge of “Kochanska” River near lake “Gradche”, 08.09.2023. Photo by Trajche Dimitrovski.
Ambrosia artemisiifolia – upper part of plant with synforescence. Gorge of “Kochanska” River near lake “Gradche”, 08.09.2023. Photo by Trajche Dimitrovski.
Ambrosia artemisiifolia – upper part of plant with synforescence. Gorge of “Kochanska” River near lake “Gradche”, 08.09.2023. Photo by Trajche Dimitrovski.
Ambrosia artemisiifolia – female capitula. Gorge of “Kochanska” River near lake “Gradche”, 08.09.2023. Photo by Trajche Dimitrovski.
Ambrosia artemisiifolia – female capitula. Gorge of “Kochanska” River near lake “Gradche”, 08.09.2023. Photo by Trajche Dimitrovski.
Ambrosia artemisiifolia – female capitula. Gorge of “Kochanska” River near lake “Gradche”, 08.09.2023. Photo by Trajche Dimitrovski.
Ambrosia artemisiifolia – female capitula. Gorge of “Kochanska” River near lake “Gradche”, 08.09.2023. Photo by Trajche Dimitrovski.
Ambrosia artemisiifolia – female capitula. Gorge of “Kochanska” River near lake “Gradche”, 08.09.2023. Photo by Trajche Dimitrovski.
Ambrosia artemisiifolia – female capitula. Gorge of “Kochanska” River near lake “Gradche”, 08.09.2023. Photo by Trajche Dimitrovski.
Ambrosia artemisiifolia – female and male capitula. Gorge of “Kochanska” River near lake “Gradche”, 08.09.2023. Photo by Trajche Dimitrovski.
Ambrosia artemisiifolia – male capitula. Gorge of “Kochanska” River near lake “Gradche”, 08.09.2023. Photo by Trajche Dimitrovski.
Ambrosia artemisiifolia – male capitula. Gorge of “Kochanska” River near lake “Gradche”, 08.09.2023. Photo by Trajche Dimitrovski.
Ambrosia artemisiifolia – male capitula. Gorge of “Kochanska” River near lake “Gradche”, 08.09.2023. Photo by Trajche Dimitrovski.
Ambrosia artemisiifolia – male capitula. Gorge of “Kochanska” River near lake “Gradche”, 08.09.2023. Photo by Trajche Dimitrovski.
Ambrosia artemisiifolia – male capitula. Gorge of “Kochanska” River near lake “Gradche”, 08.09.2023. Photo by Trajche Dimitrovski.
Ambrosia artemisiifolia – male capitula. Gorge of “Kochanska” River near lake “Gradche”, 08.09.2023. Photo by Trajche Dimitrovski.
Ambrosia artemisiifolia – stem with leaves. Gorge of “Kochanska” River near lake “Gradche”, 08.09.2023. Photo by Trajche Dimitrovski.
Ambrosia artemisiifolia – stem with leaves. Gorge of “Kochanska” River near lake “Gradche”, 08.09.2023. Photo by Trajche Dimitrovski.
Ambrosia artemisiifolia – stem with leaves. Gorge of “Kochanska” River near lake “Gradche”, 08.09.2023. Photo by Trajche Dimitrovski.
Ambrosia artemisiifolia – leaf. Gorge of “Kochanska” River near lake “Gradche”, 08.09.2023. Photo by Trajche Dimitrovski.
Ambrosia artemisiifolia – adaxial side of leaf. Gorge of “Kochanska” River near lake “Gradche”, 08.09.2023. Photo by Trajche Dimitrovski.
Ambrosia artemisiifolia – abaxial side of leaf. Gorge of “Kochanska” River near lake “Gradche”, 08.09.2023. Photo by Trajche Dimitrovski.
Ambrosia artemisiifolia – fruiting female capitula. Gorge of “Kochanska” River near lake “Gradche”, 08.09.2023. Photo by Trajche Dimitrovski.
Ambrosia artemisiifolia – habit. Gorge of “Kochanska” River near lake “Gradche”, 06.08.2023. Photo by Trajche Dimitrovski.
Ambrosia artemisiifolia – habit. Gorge of “Kochanska” River near lake “Gradche”, 06.08.2023. Photo by Trajche Dimitrovski.
Ambrosia artemisiifolia – habit. Gorge of “Kochanska” River near lake “Gradche”, 06.08.2023. Photo by Trajche Dimitrovski.
Ambrosia artemisiifolia – habit. Gorge of “Kochanska” River near lake “Gradche”, 06.08.2023. Photo by Trajche Dimitrovski.
Ambrosia artemisiifolia – upper part of plant with developing synflorescence. Gorge of “Kochanska” River near lake “Gradche”, 06.08.2023. Photo by Trajche Dimitrovski.
Ambrosia artemisiifolia – upper part of plant with developing synflorescence. Gorge of “Kochanska” River near lake “Gradche”, 06.08.2023. Photo by Trajche Dimitrovski.
Ambrosia artemisiifolia – developing synflorescence. Gorge of “Kochanska” River near lake “Gradche”, 06.08.2023. Photo by Trajche Dimitrovski.
Ambrosia artemisiifolia – developing synflorescence. Gorge of “Kochanska” River near lake “Gradche”, 06.08.2023. Photo by Trajche Dimitrovski.
Ambrosia artemisiifolia – developing inflorescence. Gorge of “Kochanska” River near lake “Gradche”, 06.08.2023. Photo by Trajche Dimitrovski.
Ambrosia artemisiifolia – developing inflorescence. Gorge of “Kochanska” River near lake “Gradche”, 06.08.2023. Photo by Trajche Dimitrovski.
Ambrosia artemisiifolia – stem with leaves. Gorge of “Kochanska” River near lake “Gradche”, 06.08.2023. Photo by Trajche Dimitrovski.
Ambrosia artemisiifolia – stem with leaves. Gorge of “Kochanska” River near lake “Gradche”, 06.08.2023. Photo by Trajche Dimitrovski.
Ambrosia artemisiifolia – leaves. Gorge of “Kochanska” River near lake “Gradche”, 06.08.2023. Photo by Trajche Dimitrovski.
Ambrosia artemisiifolia – adaxial side of leaf. Gorge of “Kochanska” River near lake “Gradche”, 06.08.2023. Photo by Trajche Dimitrovski.
Ambrosia artemisiifolia – abaxial side of leaf. Gorge of “Kochanska” River near lake “Gradche”, 06.08.2023. Photo by Trajche Dimitrovski.
Ambrosia artemisiifolia – stem. Gorge of “Kochanska” River near lake “Gradche”, 06.08.2023. Photo by Trajche Dimitrovski.

References:

Ambrosia artemisiifolia L. Plants of the World Online portal, Royal Botanic Gardens, Kew. https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:176058-1 [Accessed 09.09.2023].

Ambrosia L. Hansen, A. in Tutin, T.G., Heywood, V.H., Burges, N.A., Moore, D.M., Valentine, D.H., Walters, S.M. & Webb, D.A. (1976). Flora Europaea. Volume 4: Plantaginaceae to Compositae (and Rubiaceae). Cambridge: Cambridge University Press, pp. 142 – 143.

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