Pilosella floribunda

Pilosella floribunda (synonym Hieracium floribundum,[1] also known as pale hawkweed, smoothish hawkweed,[2] yellow hawkweed,[3] and yellow devil hawkweed[4]) is a species of noxious and herbaceous perennial plant from family Asteraceae that is known in Europe (particularly France)[4] and can also be found in United States and Canada.[5] It was believed that it was a hybrid of Pilosella caespitosa (Hieracium caespitosum and Pilosella lactucella (Hieracium lactucella).[2]

Pilosella floribunda
Scientific classification
Kingdom: Plantae
Clade: Tracheophytes
Clade: Angiosperms
Clade: Eudicots
Clade: Asterids
Order: Asterales
Family: Asteraceae
Tribe: Cichorieae
Genus: Pilosella
Species:
P. floribunda
Binomial name
Pilosella floribunda
(Wimmer & Grab) Fr.[1]
Synonyms[1]
  • Hieracium apatorium (Nägeli & Peter) Üksip
  • Hieracium arvicola subsp. apatorium
  • Hieracium assimilatum Norrl.
  • Hieracium × atramentarium (Nägeli & Peter) Zahn
  • Hieracium auricula L.
  • Hieracium baenitzii (Nägeli & Peter) Üksip
  • Hieracium brachycephalum Norrl. ex Nyman
  • Hieracium fennicum Norrl. ex Vain.
  • Hieracium floribundum Wimm. & Grab.
  • Hieracium fulvescens (Nägeli & Peter) Üksip
  • Hieracium islandiciforme (Dahlst.) Omang
  • Hieracium islandicum Dahlst.
  • Hieracium ladogense Norrl.
  • Hieracium limbatum Brenner
  • Hieracium lobarzewskii Rehmann
  • Hieracium longatum (Peter) Üksip
  • Hieracium oeneo-roratum Norrl.
  • Hieracium pubens Norrl.
  • Hieracium regiomontanum (Nägeli & Peter) Üksip
  • Hieracium spathophyllum Nägeli & Peter
  • Hieracium subfloribundum Dahlst.
  • Hieracium subpratense Norrl. ex Nyman
  • Hieracium sudavicum (Nägeli & Peter) Üksip
  • Hieracium svirense Norrl.
  • Hieracium vitellinum Norrl.
  • Pilosella assimilata Norrl.
  • Pilosella atramentaria (Nägeli & Peter) Soják
  • Pilosella auricula (L.) F.W.Schultz & Sch.Bip.
  • Pilosella brachycephala Norrl.
  • Pilosella fennica (Nägeli & Peter) Soják (part)
  • Pilosella fennica subsp. exorrhabda (Nägeli & Peter) Soják
  • Pilosella interrupta Norrl.
  • Pilosella islandica (Lange ex Grønlund) Á.Löve
  • Pilosella ladogensis Norrl.
  • Pilosella lobarzewskii (Rehmann) Soják
  • Pilosella subpratensis Norrl.
  • Pilosella subpubens Norrl.
  • Pilosella subswirensis Norrl.
  • Pilosella suecica (Fr.) F.W.Schultz & Sch.Bip.
  • Pilosella versicolor Arv.-Touv.
  • Pilosella xanthostigma Norrl.

Description

The plant is 10 to 36 inches tall. The flowers bloom from June to July, are clustered, and are 1/2 inch wide. The leaves are hairy and spatula shaped.[3]

References
  1. "Pilosella floribunda (Wimmer & Grab) Fr.". Plants of the World Online. Royal Botanic Gardens, Kew. Retrieved 2019-01-28.
  2. "Pale Hawkweed (Smoothish Hawkweed)". Connecticut Botanical Society. Retrieved 6 October 2012.
  3. "yellow hawkweed (hieracium floribundum)". Oregon.gov. Retrieved 6 October 2012.
  4. "Hieracium floribundum (herb)". Interim profile, incomplete information. Retrieved 6 October 2012.
  5. "Hieracium ×floribundum Wimm. & Grab. (pro sp.) [caespitosum × lactucella]". PLANTS Profile. Retrieved 6 October 2012.


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