Arnica lonchophylla Greene
  • Pittonia 4

Cite taxon page as 'WFO (2020): Arnica lonchophylla Greene. Published on the Internet; Accessed on: 19 Sep 2020'

General Information

Plants 12–50 cm. Stems usually simple, rarely branched. Leaves 3–7 pairs, mostly cauline; petiolate (petioles, at least proximal, relatively narrow, ± equaling blades); blades narrowly to broadly lanceolate or ovate, 3.5–14 × 0.5–3.7 cm, margins regularly dentate or denticulate, apices acute, faces glabrous or moderately pilose, sparsely to densely stipitate-glandular. Heads 3–8 (erect). Involucres campanulate-turbinate. Phyllaries 6–14, lanceolate (apices acute). Ray florets 6–17; corollas yellow. Disc florets: corollas yellow; anthers yellow. Cypselae gray to brown, 3–6 mm, densely hirsute, sometimes stipitate-glandular; pappi white, bristles barbellate. 2n = 38, 57, 76.

  • Provided by: [B].Flora of North America @
    • Source: [
    • 1
    • ]. 

    "Stems 1.5–4 dm, solitary or sometimes loosely clustered, on a densely scaly rhizome; herbage finely stipitate-glandular and often also spreading-hairy or scabrous-puberulent, or the lvs subglabrous; lvs dentate, the lowest mostly persistent, 5–15 × 1.5–3.5 cm; middle and upper lvs few and reduced, sessile, the stem appearing sparsely leafy or subnaked; heads (1–)3–7(–9), turbinate or campanulate, the disk 1–2 cm wide; invol 8–12 mm; rays (6–)8(–10), 1–2 cm; pappus-bristles white, merely barbellate; ours apomictic triploids and tetraploids, 2n=57, 76. Rocky places, in our range chiefly or wholly in calcareous situations; cordilleran region of Can. and nw. U.S.; Ont. and ne. Minn.; N.S. to Que. and Nf. Ours are var. lonchophylla. (A. chionopappa) Var. arnoglossa (Greene) B. Boivin is restricted to Wyo. and w. S.D. (A. arnoglossa)"

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


     Information From

    CC0 1.0 Universal (CC0 1.0).
    • A CC0 1.0 Universal (CC0 1.0).
    Flora of North America @
    'Flora of North America @ eFloras (2008). Published on the Internet [accessed August 2016]' Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.
    • B Flora of North America Association
    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
    World Flora Online Data. 2018.
    • D CC0 1.0 Universal (CC0 1.0).