Photo Library

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Pedicularis langsdorffii

  • Family name: Scrophulariaceae
  • Common name: Langsdorf's lousewort
  • Growth form: Forb
  • Names used on the Toolik-Arctic Geobotanical Atlas maps:
    • Toolik Permanent Plots: Pedicularis langsdorffii arctica
    • Imnavait Creek Permanent Plots: Pedicularis langsdorfii
    • Happy Valley Permanent Plots: Pedicularis langsdorffii

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  1. Pedicularis langsdorffii    , Langsdorf's lousewort
  2. Both of these roots are from P. langsdorfii subsp. arctica. They have a pale yellow branching taproot, a contrast with P. lanata where the taproot is bright lemon yellow and usully more robust (see P. lanata).
    Collected: Left: Hot Weather Creek, Ellesmere Island, Nunavut, Canada. Right: Tingmisut Lake, Melville Island, Canada. Collected: Left: Edlund 70 and Roncato-Spencer. Right: Tener and Harington.
    Image author: unknown
    Website: Flora of the Canadian Arctic Archipelago
    Source of original image

  1. Pedicularis langsdorffii    , Langsdorf's lousewort
  2. Close-up of three landing petals and the tube of the corolla that leads to the nectary
    July 1999, Aulavik National Park, Banks Island, Northwest Territories, Canada
    Image author: Aiken ?
    Website: Flora of the Canadian Arctic Archipelago
    Source of original image

  1. Pedicularis langsdorffii    , Langsdorf's lousewort
  2. Flowers with strongly arched, deeper pink helmet petals, that have two small teeth at the apex and with stigmas that ripen first extended. Landing petals are longer than helmet.
    July 1999, Aulavik National Park, Banks Island, Northwest Territories, Canada
    Image author: Aiken ?
    Website: Flora of the Canadian Arctic Archipelago
    Source of original image

  1. Pedicularis langsdorffii    , Langsdorf's lousewort
  2. Plant nearly 20 cm high, growing with Salix arctica in a sheltered hollow, near the top of a sand pingo. Note bract leaves are longer than the flowers at the base of the inflorescence
    July 1999, Aulavik National Park, Banks Island, Northwest Territories, Canada
    Image author: Aiken ?
    Website: Flora of the Canadian Arctic Archipelago
    Source of original image