Polemonium pulcherrimum : Showy Jacob's-ladder

Taxonomy

Scientific Name:

Kingdom: Plantae

Division:

Class: Dicoteldonae (two seed-leaves)

Family: Polemoniaceae (Phlox Family)

Genera: Polemonium (Jacob's-ladder) (Gk. polemonion= a kind of plant; See 'Folklore' entry under 'Uses' for more info on name origins)

Species: pulcherrimum

English Name(s):

Showy Jacob's-ladder,

First Nation Names:


Description

Structure:

  • Plant is sticky pubescent (hairy).
  • Stems several, branched, from a branched rhizome (rootstalk).

Leaves:

Reproductive Parts:

  • Calyx (sepals) united, 5-lobed.
  • Corolla (petals) united, 5-lobed. Lobes radiating outward and very showy.
  • Flowers perfect (bisexual), and regular in symmetry.
  • Ovary is superior (above recepticle), and 3-loculed (chambered).
  • Stamens (male parts) 5, attached to corolla tube.
  • Stamens attached at the top of the corolla tube.
  • Pedicels (flower stalks) longer than calyx.
  • Calyx 4-6 mm long, lobes lance-oblong in shape, up to twice as long as wide.
  • Corolla 8-12 mm long, blue to violet or rarely white, tube yellowish.
  • Inflorescence (flowers) more or less capitate.

Seed:

  • Fruit is a capsule.
  • Capsule enclosed in calyx.

Not to Be Confused With:

  • Can tell from P.boreale (Northern Jacob's-ladder) by the length of its flowers. P.boreale flowers are longer.

Biology

Physiology:

    Life Cycle:

    Seasonal Cycle:


      Ecology

      Animal Uses:

        Habitat:

        • Dry grassy sandy and rocky slopes.

        Uses

        Modern:

        Industrial:

        Medicinal:

          Food:

            Traditional Gwich'in:

            Folklore:

              Industrial:

                Medicinal:

                  Food:

                    Traditional Other:

                    Folklore:

                      Industrial:

                        Medicinal:

                          Food:

                            Images

                            Erect stems


                            Flowers


                            Slightly hairy leaves


                            Illustration from: Illustrated Flora of BC


                            Range Maps

                            World Range: North American from southern AK through most of YT and into northwest NWT, south to CA and CO.

                            Prov/State Abrev. List


                            In Yukon: In most of the territory north to the Porcupine River Valley

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