Helenium virginicum S.F.Blake


Cite taxon page as 'WFO (2021): Helenium virginicum S.F.Blake. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-0000026433. Accessed on: 23 Oct 2021'

General Information

Perennials, 30–130 cm. Stems 1(–2), branched distally, strongly winged, glabrous or sparsely to moderately hairy proximally, glabrous or sparsely hairy distally. Leaves glabrous or sparsely to densely hairy; basal blades oblanceolate, weakly to strongly lobed; proximal and mid blades oblanceolate to lanceolate, usually entire, sometimes dentate; distal blades usually lanceolate, entire. Heads 2–25+ per plant, in paniculiform arrays. Peduncles 2–8 cm, sparsely to moderately hairy. Involucres globoid, 8–15 × 10–16 mm. Phyllaries (connate proximally) sparsely to moderately hairy. Ray florets 8–13, pistillate, fertile; corollas yellow, 10–15 × 4–10 mm. Disc florets 200–400+; corollas yellow proximally, yellow to yellow-brown distally, 2.5–3.5 mm, lobes 5. Cypselae 1.8–2.3 mm, moderately hairy; pappi of 5–6 entire, aristate scales 1.3–2 mm.

  • Provided by: [C].Flora of North America @ efloras.org
    • Source: [
    • 1
    • ]. 

    "Fibrous-rooted perennial 2–10 dm, ± puberulent or villous- puberulent at least on the stem, the lower part of the stem generally spreading-villous; lvs decurrent but smaller, fewer, and more erect than in no. 1 [Helenium autumnale L.], entire or subentire, the lowermost ones oblanceolate, commonly deciduous, the others oblong or lanceolate to lance-linear, sessile, generally not much reduced upwards, 3–12 × 0.5–2 cm; heads in well developed plants numerous in an open, corymbiform, leafy-bracteate infl, the disk subglobose or ovoid-globose, 6–15 mm wide, red-brown or purplish; rays ca 8 to ca 13, neutral, sometimes purplish at base, (0.5–)1–2 cm (rarely wanting); disk-fls predominantly 4-merous; pappus- scales 5(–8), ovate or lanceolate, shortly awn-tipped, ca (0.5–)1 mm overall; 2n=28. Moist ground and waste places; Mass. and N.H. to Fla., w. to Wis., Ill., Mo. and Tex., apparently only intr. northward. June–Oct. (H. nudiflorum; H. polyphyllum)"

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

    "Fibrous-rooted perennial 2–10 dm, ± puberulent or villous- puberulent at least on the stem, the lower part of the stem generally spreading-villous; lvs decurrent but smaller, fewer, and more erect than in no. 1 [Helenium autumnale L.], entire or subentire, the lowermost ones oblanceolate, commonly deciduous, the others oblong or lanceolate to lance-linear, sessile, generally not much reduced upwards, 3–12 × 0.5–2 cm; heads in well developed plants numerous in an open, corymbiform, leafy-bracteate infl, the disk subglobose or ovoid-globose, 6–15 mm wide, red-brown or purplish; rays ca 8 to ca 13, neutral, sometimes purplish at base, (0.5–)1–2 cm (rarely wanting); disk-fls predominantly 4-merous; pappus- scales 5(–8), ovate or lanceolate, shortly awn-tipped, ca (0.5–)1 mm overall; 2n=28. Moist ground and waste places; Mass. and N.H. to Fla., w. to Wis., Ill., Mo. and Tex., apparently only intr. northward. June–Oct. (H. nudiflorum; H. polyphyllum)"

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

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     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).
    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.
    • B Content licensed under Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License
    Flora of North America @ efloras.org
    http://www.efloras.org/flora_page.aspx?flora_id=1
    'Flora of North America @ eFloras (2008). Published on the Internet http://www.efloras.org/flora_page.aspx?flora_id=1 [accessed August 2016]' Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
    • C Flora of North America Association
    World Flora Online consortium
    http://www.worldfloraonline.org/organisation/WFO
    World Flora Online Data. 2018.
    • D CC0 1.0 Universal (CC0 1.0).