Senecio madagascariensis
species of plant
Senecio madagascariensis, also known as Madagascar ragwort, is a species of the genus Senecio and family Asteraceae that is native to Southern Africa. Other common names include Madagascar groundsel and fireweed. It has been included on the noxious weeds list for Hawaii
and the reject list for Australia.
S.madagascariensis is the diploid cytotype of S.inaequidens.
Description
It is an erect, glabrous (smooth stemmed) herb that grows up to 20–60 cm in length. It may become woody and shrub-like in appropriate conditions. Leaves are alternate, narrow-lanceolate to elliptic in shape, usually bright green, smooth with margins that are lobed, serrate or entire. The broader, larger leaves are stem clenching and fleshy, 2–7 cm long and 3-10mm wide.
The flowerhead, which is part of an unfirm corymb, is made up of disc florets and ray florets, and is small, yellow and daisy-like, from 1–2 cm in diameter. The plant flowers between late autumn and early spring in its native area.
Begin with the source’s own compact description: “Senecio madagascariensis” is species of plant. The dossier treats that line as a proposition to test through Senecio, madagascariensis and species, not as a finished interpretation.
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Datasets, specimens, observations and peer-reviewed methods provide the appropriate test for the technical claims summarized here. The source revision retrieved here is dated Nov 17, 2024. The linked authority identifier is Q5766514. The Library of Congress control number is sh2017005207. 1 of 1 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank.
Scientific names, classifications and consensus can change while older terminology persists in catalogues and historical literature. The source lead contains qualifying language; that uncertainty should survive quotation, summary and reuse. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.
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This entry incorporates text from “Senecio madagascariensis” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.