Asclepias syriaca L.
  • Sp. Pl. ed. 2
  • Asclépiade de Syrie


Cite taxon page as 'WFO (2021): Asclepias syriaca L. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-0000551803. Accessed on: 01 Dec 2021'

General Information

"Colonial by roots; stems stout, 1–2 m, mostly simple, hairy; lvs thick, narrowly or broadly elliptic to ovate or oblong, 10–15 cm, acute or apiculate, soft-hairy beneath; petioles 5–15 mm; umbels often numerous, terminal and lateral, compactly many-fld; peduncles 3–10 cm; cor nearly purple to nearly green, its lobes 7–10 mm; hoods pale purple, somewhat divergent, 4–5 mm, surpassing the gynostegium, the lateral margins with a prominent, sharp, triangular lobe near the middle; horns short, inflexed; fr erect on deflexed pedicels, 7–12 cm, tomentose and beset with soft, filiform to conic processes; 2n=22. Fields, meadows, and roadsides; N.B. to Va. and n. Ga., w. to Man., Nebr., and Okla. June–Aug. (A. kansana) Native, the specific epithet in error."

  • Provided by: [C].New York Botanical Garden
    • Source: [
    • 1
    • ]. 

    Morphology

    Bis 2 m hoch, am Grund verholzend. Blätter lanzettlich, unterseits dicht flaumig, 10–20 (–30) cm lang, ca. 1 cm lang gestielt. Blüten in vielblütigen Dolden. Kronblätter braunrot, rückwärts gerichtet, 5–10 mm lang, mit 3–5 mm langen, aufgeri

  • Provided by: [B].Flora Helvetica – Illustrierte Flora der Schweiz
    • Source: [
    • 2
    • ]. 

    Ecology

    6–8. Angepflanzt und verwildert, kollin.

  • Provided by: [B].Flora Helvetica – Illustrierte Flora der Schweiz
    • Source: [
    • 2
    • ]. 

    Other Local Names

    NameLanguageCountry
    Asclépiade de SyrieFrenchCH
    Syrische SeidenpflanzeGermanCH
    Albero della seta, Lino d'IndiaItalianCH

      Bibliography

    • 1 "Gleason, Henry A. & Cronquist, Arthur J. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. lxxv + 910 pp."
    • 2 Flora Helvetica, Illustrierte Flora der Schweiz. K. Lauber, G. Wagner, A. Gygax, Haupt Verlag, 2018. ISBN-978-3-258-08047-5
    • 3 Sp. Pl. ed. 2

     Information From

    Apocynaceae
    World Flora Online Data. 2017.
    • A CC0 1.0 Universal (CC0 1.0).
    Flora Helvetica – Illustrierte Flora der Schweiz
    http://www.flora-helvetica.ch
    Flora Helvetica – Illustrierte Flora der Schweiz, Konrad Lauber, Gerhart Wagner, Andreas Gygax. Haupt Verlag 2018.
    • B All Rights Reserved
    New York Botanical Garden
    Descriptions of plants should be attributed to the full citation for each individual article, chapter or book that is the source for each record, which should include the authors of original publication.
    • C Content licensed under Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License
    World Flora Online consortium
    http://www.worldfloraonline.org/organisation/WFO
    World Flora Online Data. 2018.
    • D CC0 1.0 Universal (CC0 1.0).