Polemonium foliosissimum

Polemonium foliosissimum, the towering Jacob's-ladder, is a rare species of flowering plant in the phlox family Polemoniaceae, native to the western United States; Arizona, Colorado, Idaho, Nevada, New Mexico, Utah and Wyoming.[2][1][3] As its synonym Polemonium archibaldiae it has gained the Royal Horticultural Society's Award of Garden Merit.[4]

Polemonium foliosissimum
In bloom
Scientific classification Edit this classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Ericales
Family: Polemoniaceae
Genus: Polemonium
Species:
P. foliosissimum
Binomial name
Polemonium foliosissimum
Synonyms[1]
List
    • Polemonium albiflorum Eastw.
    • Polemonium archibaldiae A.Nelson
    • Polemonium decurrens Brand
    • Polemonium filicinum var. archibaldiae (A.Nelson) Brand
    • Polemonium foliosissimum subsp. albiflorum (Eastw.) Brand
    • Polemonium foliosissimum f. alpinum (Brand) Wherry
    • Polemonium foliosissimum subsp. archibaldiae (A.Nelson) Wherry
    • Polemonium foliosissimum subsp. decurrens (Brand) Wherry
    • Polemonium foliosissimum f. molle (Greene) Wherry
    • Polemonium foliosissimum subsp. robustum (Rydb.) Brand
    • Polemonium foliosissimum subsp. verum Wherry
    • Polemonium grande Greene
    • Polemonium molle Greene
    • Polemonium pterospermum A.Nelson & Cockerell
    • Polemonium robustum Rydb.

Subtaxa

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The following varieties are accepted:[1]

  • Polemonium foliosissimum var. alpinum Brand - Idaho, Nevada, Utah, Wyoming
  • Polemonium foliosissimum var. foliosissimum - Arizona, Colorado, New Mexico, Utah

References

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  1. ^ a b c "Polemonium foliosissimum A.Gray". Plants of the World Online. Board of Trustees of the Royal Botanic Gardens, Kew. Retrieved 19 May 2021.
  2. ^ USDA, NRCS (n.d.). "​Polemonium foliosissimum​". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 20 July 2016.
  3. ^ "Polemonium foliosissimum". Tropicos. Retrieved 2012-05-08.
  4. ^ "Polemonium archibaldiae". The Royal Horticultural Society. 2021. Retrieved 19 May 2021.