Viola nephrophylla Greene
  • Pittonia
  • Northern bog violet, violette néphrophylle

Cite taxon page as 'WFO (2020): Viola nephrophylla Greene. Published on the Internet; Accessed on: 31 Oct 2020'

General Information

Plants perennial, acaulescent, not stoloniferous, 5–15 cm; rhizome slender, becoming thick and fleshy with age. Leaves basal, 4–7, ascending to erect; stipules lanceolate, margins entire or fimbriate, apex acute; petiole 2–25 cm, usually glabrous; blade usually grayish green or purplish green abaxially, unlobed, ovate, reniform, or broadly reniform to orbiculate, 1–7 × 1–7 cm, somewhat fleshy, base broadly cordate or reniform to ± truncate, margins crenate to serrate, ciliate or eciliate, apex acute to obtuse or rounded, surfaces usually glabrous, rarely sparsely pubescent. Peduncles 3–25 cm, usually glabrous. Flowers: sepals ovate, margins usually eciliate, auricles 1–2 mm; petals deep bluish violet on both surfaces, lower 3 white basally and darker violet-veined, lateral 2 bearded, upper 2 sometimes sparsely bearded, lowest densely bearded or beardless, 10–28 mm, spur same color as petals, gibbous, 2–3 mm; style head beardless; cleistogamous flowers on erect to ascending peduncles. Capsules ovoid, 5–10 mm, glabrous. Seeds beige to brown or dark brown, 1.5–2.5 mm. 2n = 54.

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

    "Lvs glabrous, relatively small, the later ones not notably larger than the earlier ones, seldom as much as 7 cm wide; fls often elevated somewhat above the lvs, narrower and more elongate than in no. 5 [Viola sororia Willd.], the relatively narrow lateral pet directed forward at an angle, tapering to an almost clawed base; spurred pet bearded or not; 2n=54; otherwise much like no. 5 [Viola sororia Willd.]. Mainly in the w. cordillera, but extending e. in cold, wet places (often with a high pH) to ne. U.S. (Mich., Wis., n. N.Y., and New Engl.) and se. Can. May–July."

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

    Other Local Names

    Northern bog violet, violette néphrophylle


     Information From

    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.
    • A 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.
    • B Content licensed under Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported License
    International Union for Conservation of Nature v.3
    IUCN 2019. The IUCN Red List of Threatened Species. Version 2019-1.
    • C See IUCN Terms and conditions of use
    International Union for Conservation of Nature
    IUCN 2016. IUCN Red List of Threatened Species. Version 2016-2
    • D All Rights Reserved
    • E CC0 1.0 Universal (CC0 1.0).
    World Flora Online consortium
    World Flora Online Data. 2018.
    • F CC0 1.0 Universal (CC0 1.0).