Filago arvensis L.


Cite taxon page as 'WFO (2020): Filago arvensis L. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-0000124987. Accessed on: 25 Oct 2020'

General Information

Herbs, annual. Stems 5-35 cm tall, erect, paniculately branching, more rarely simple, sometimes forkedly branching in upper portion, with dense whitish or grayish lanate pubescence. Leaves lanceolate or linear-lanceolate, 5-15 × ca. 1.3 mm, with soft lanate pubescence, apex acute. Capitula 2-3 mm, ovate or pyramidal, gathered in 2s-10s into numerous corymbs, arranged at apices of stems and ramuscules and forming paniculate, racemose, more rarely spiciform synflorescences; floral leaves as long as or shorter than capitula. Involucre 2- or 3-seriate; phyllaries stellate-patent after ripening of achenes; outer phyllaries 5-10, closely surrounding female florets, green, in middle scarious, white transparent at margin, linear or lanceolate, cymbiform, 2-3 mm, ecarinate, abaxially with thick continuous gray lanate pubescence, glabrous at apex, slightly acuminate; inner phyllaries 5, becoming green in middle, broadly lanceolate, slightly concave, indistinctly pubescent or glabrous at margin abaxially, acuminate or obtuse. Achenes light brown, oblong-ovate, slightly flattened, 0.8-1 × ca. 0.3 mm, with sparse papillose hairs, larger than in other species of genus. Pappus of female and bisexual florets with 12-15 finely crenate bristles. 2n = 28.

  • Provided by: [B].Flora Of CHina @ efloras.org
    • Source: [
    • 1
    • ]. 

    "Simple or branching annual 0.3–5 dm; lvs erect, linear or nearly so, to ca 4 cm × 5 mm; heads mostly 3–5 mm high, in a racemiform or paniculiform, leafy-bracteate infl; proper invol very scanty; receptacular bracts woolly, simulating an invol, somewhat concave-clasping, obscurely hyaline-margined and -tipped; receptacle nearly flat; 2n=28. European weed, now well established in nw. U.S. and casually in our range, as in Mich. July, Aug. (Logfia a.)"

  • Provided by: [C].New York Botanical Garden
    • Source: [
    • 2
    • ]. 

      Bibliography

     Information From

    Compositae
    CC0 1.0 Universal (CC0 1.0). https://creativecommons.org/publicdomain/zero/1.0
    • A CC0 1.0 Universal (CC0 1.0).
    Flora Of CHina @ efloras.org
    http://www.efloras.org/flora_page.aspx?flora_id=2
    'Flora of China @ eFloras (2008). Published on the Internet http://www.efloras.org/flora_page.aspx?flora_id=2 [accessed August 2016]' Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
    • B Missouri Botanical Garden
    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).