Polemonium foliosissimum

Polemonium foliosissimum
	In bloom
Scientific classification
Kingdom:	Plantae
Clade:	Tracheophytes
Clade:	Angiosperms
Clade:	Eudicots
Clade:	Asterids
Order:	Ericales
Family:	Polemoniaceae
Genus:	Polemonium
Species:	P. foliosissimum
Binomial name
	Polemonium foliosissimum; A.Gray
Synonyms
	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.; ;

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]

Subtaxa edit

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 edit

^ ^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.
^ USDA, NRCS (n.d.). "Polemonium foliosissimum". The PLANTS Database (plants.usda.gov). Greensboro, North Carolina: National Plant Data Team. Retrieved 20 July 2016.
^ "Polemonium foliosissimum". Tropicos. Retrieved 2012-05-08.
^ "Polemonium archibaldiae". The Royal Horticultural Society. 2021. Retrieved 19 May 2021.

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[689943-1-1] "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.

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