Onopordum acanthium L. subsp. acanthium

Posted byTrajche DimitrovskiPosted inCompositae, Plant families

Taxonomy: Fam. Compositae// Genus: Onopordum// Species: Onopordum acanthium L.// Subspecies: Onopordum acanthium L. subsp. acanthium.

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

Lifeform: Biennial; the first year of the lifecycle is vegetative (basal rosette stage). Flowering and fruiting occurs in the second year.

Distribution: Native from Europe to Xinjiang, West Himalaya and Arabian Peninsula; Northwest Africa according to the distribution information provided by the Plants of the World Online portal (Royal Botanic Gardens, Kew).

Habitat:  Usually found on disturbed ground- in and near settlements, roadsides, waste places and other ruderal areas.

Flowering period: Summer (JUN, JUL, AUG).

Locality: gorge of Kochanska River. Date: 16.07.2022.

Onopordum acanthium subsp. acanthium – habit. Gorge of “Kochanska” River, 16.07.2022. Photo by Trajche Dimitrovski.
Onopordum acanthium subsp. acanthium – habit. Gorge of “Kochanska” River, 16.07.2022. Photo by Trajche Dimitrovski.
Onopordum acanthium subsp. acanthium – habit. Gorge of “Kochanska” River, 16.07.2022. Photo by Trajche Dimitrovski.
Onopordum acanthium subsp. acanthium – stem with capitula. Gorge of “Kochanska” River, 16.07.2022. Photo by Trajche Dimitrovski.
Onopordum acanthium subsp. acanthium – capitulum. Gorge of “Kochanska” River, 16.07.2022. Photo by Trajche Dimitrovski.
Onopordum acanthium subsp. acanthium – capitulum. Gorge of “Kochanska” River, 16.07.2022. Photo by Trajche Dimitrovski.
Onopordum acanthium subsp. acanthium – spent capitulum. Gorge of “Kochanska” River, 16.07.2022. Photo by Trajche Dimitrovski.
Onopordum acanthium subsp. acanthium – fruiting capitulum. Gorge of “Kochanska” River, 16.07.2022. Photo by Trajche Dimitrovski.
Onopordum acanthium subsp. acanthium – fruiting capitulum. Gorge of “Kochanska” River, 16.07.2022. Photo by Trajche Dimitrovski.
Onopordum acanthium subsp. acanthium – fruiting capitulum with achenes. Gorge of “Kochanska” River, 16.07.2022. Photo by Trajche Dimitrovski.
Onopordum acanthium subsp. acanthium – fruiting capitulum with achenes. Gorge of “Kochanska” River, 16.07.2022. Photo by Trajche Dimitrovski.
Onopordum acanthium subsp. acanthium – stem with vings and upper cauline leaf. Gorge of “Kochanska” River, 16.07.2022. Photo by Trajche Dimitrovski.
Onopordum acanthium subsp. acanthium – stem with wings and cauline leaves. Gorge of “Kochanska” River, 16.07.2022. Photo by Trajche Dimitrovski.
Onopordum acanthium subsp. acanthium – lower cauline leaves. Gorge of “Kochanska” River, 16.07.2022. Photo by Trajche Dimitrovski.
Onopordum acanthium subsp. acanthium – lower cauline leaf. Gorge of “Kochanska” River, 16.07.2022. Photo by Trajche Dimitrovski.
Onopordum acanthium subsp. acanthium – adaxial side of leaf. Gorge of “Kochanska” River, 16.07.2022. Photo by Trajche Dimitrovski.
Onopordum acanthium subsp. acanthium – abaxial side of leaf. Gorge of “Kochanska” River, 16.07.2022. Photo by Trajche Dimitrovski.
Onopordum acanthium subsp. acanthium – abaxial side of leaf. Gorge of “Kochanska” River, 16.07.2022. Photo by Trajche Dimitrovski.
Onopordum acanthium subsp. acanthium – arachnoid indumentum of stem. Gorge of “Kochanska” River, 16.07.2022. Photo by Trajche Dimitrovski.
Onopordum acanthium subsp. acanthium – developing stem. Gorge of “Kochanska” River, 16.07.2022. Photo by Trajche Dimitrovski.

References:

Onopordum acanthium subsp. acanthium. Plants of the World Online portal, Royal Botanic Gardens, Kew. https://powo.science.kew.org/taxon/urn:lsid:ipni.org:names:77180335-1 [Accessed 17.07.2022].

do Amaral Franco, J. 1976. Onopordum L. In Tutin, T. G., Heywood, V. H., Burges, N. A., Moore, D. M., Valentine, D. H., Walters, S. M. & Webb, D. A. (eds.), Flora Europaea. Volume 4. Plantaginaceae to Compositae (and Rubiaceae), Cambridge: Cambridge University Press, pp. 244–248.