Crocanthemum canadense (L.) Britton
  • Ill. Fl. N. U.S.
  • Canada rockrose or frostweed, crocanthème du Canada


Cite taxon page as 'WFO (2020): Crocanthemum canadense (L.) Britton. Published on the Internet;http://www.worldfloraonline.org/taxon/wfo-0000626248. Accessed on: 26 Sep 2020'

General Information

Herbs. Stems ascending to erect, , 15–50(–65) cm, stellate-pubescent to glabrate. Leaves cauline; petiole 1–3 mm; blade oblanceolate-elliptic to narrowly elliptic, , 12–30(–38) × 4–7(–10) mm, , surfaces stellate-tomentose and with scattered simple hairs abaxially, <± lustrous>, sparsely stellate-pubescent and with simple hairs adaxially, lateral veins raised abaxially. Inflorescences terminal or subterminal, cymes; chasmogamous flowers 1–3 per cyme, cleistogamous 1–3 per glomerule, . Pedicels (1.5–)4–10(–17) mm, ; bracts absent. Chasmogamous flowers: outer sepals narrowly lanceolate, 2–6 × 0.5–1 mm, inner sepals 5–9 × 3.5–5 mm, apex acute; petals obovate, 8–15 × 6–14 mm; capsules 5–8 × 4–7 mm, glabrous. Cleistogamous flowers: outer sepals rudimentary, 0.2–0.5 × 0.2–0.4 mm, inner sepals obovate, 2.5–4 × 2.5–3.5 mm, apex acute; capsules 2.3–3.5 × 2.5–3.5 mm, glabrous. 2n = 20.

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

    Other Local Names

    NameLanguageCountry
    Canada rockrose or frostweed, crocanthème du Canada

     Information From

    Cistaceae
    World Flora Online Data. 2017.
    • A CC0 1.0 Universal (CC0 1.0).
    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.
    • B Flora of North America Association