Potentilla pensylvanica : Pensylvania Cinquefoil

Taxonomy

Scientific Name:

Kingdom: Plantae

Division:

Class: Dicoteldonae (two seed-leaves)

Family: Rosaceae (Rose Family)

Genera: Potentilla (Cinquefoil) (Lat. potens=powerful; referring to the strengh of the medicine from some species)

Species: pensylvanica (of Pensylvania)

Synonym(s): P. pectinata

English Name(s):

Pensylvania Cinquefoil, Prairie Cinquefoil

First Nation Names:



Description

Structure:

  • Plant loosely to densely tufted.
  • Caudex (base) simple or branched, erect or ascending, covered with marcescent (withered) stipules (appendages).
  • Stems few to several, 25-75cm high, simple or branching above, thinly tomentos (woolly), usually with 3 or 4 evenly spaced cauline (on stem) leaves each reduced above.

Leaves:

  • Cauline (stem) and basal leaves simmilar.
  • Pinnate with 5-9 leaflets.
  • Leaflets oblong to oblanceolate in shape, divided halfway or nearly to midrib into linear-oblong segments.
  • Undersurface often white-tomentos (Woolly).

Reproductive Parts:

  • Inflorescence (flower clusters) somewhat congested in one to several clusters.
  • Sepals 5, short, soft-pubescent (hairy).
  • Bracteoles 5, alternating with sepals, short, soft-pubescent.
  • Petals bright-yellow, not much longer than sepals.
  • Style (female part) thick and glandular at base.

Seed:

  • Fruit is a small, dry, seedlike, achene (nutlet).

Not to Be Confused With:

  • Potentilla anserina (Silverweed) is the only potentilla (Cinquefoil) with at all simmilar pinnate leaves. It can be distinguished by its runners and shorter stature.

Biology

Physiology:

Life Cycle:

  • Perennial

Seasonal Cycle:


Ecology

Animal Uses:

Habitat:

  • Dry praries, bluffs, dunes, and mountain slpoes to near treeline.

Uses

Modern:

Industrial:

Medicinal:

    Food:

      Traditional Gwich'in:

      Folklore:

        Industrial:

          Medicinal:

            Food:

              Traditional Other:

              Folklore:

              • In astrology Potentilla are said to be governed by Jupiter.
              • In the Victorian Language of Flowers these plants symbolized "beloved daughter" or " I claim, at least, your esteem".
              • Potentilla were said to flourish in the gardens of witches. One of few yellow flowers they cared for.

              Industrial:

                Medicinal:

                  Food:

                    Images

                    Flowering stem


                    Illustration from: Illustrated flora of BC


                    Range Maps

                    World Range: North America; from NL and QC to southeast AK, south to MN and NV.

                    Prov/State Abrev. List


                    In Yukon: Fairly frequent north to latitude 64N then disjunct to Porcupine, Snake and Firth Rivers

                    To Top Of Page