Synonym:  Hieracium florentinum  Allioni
    
Synonym:  Hieracium praealtum  Vill. x Gochnat

              

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Plants of fields, lawns and open, disturbed ground.  Flowers May to June.  Not native.

Perennial.  Sap is milky white.  Rhizomes are short; stolons are seldom producedStems are scapose, glaucous, variably covered with stellate (branched) hairs; bulbous-based, long bristles and minute stalked glands.  Coverage of hairs is usually less dense than in the most similar species within the genus; varying to nearly glabrous in some populations.  Typical height is 1 to 2+ feet.

Inflorescences are flat-topped, somewhat open on more robust stems; flower heads are often borne on longer peduncles.

Flower heads are ligulate.  All florets are bisexual and fertile.  Corollas are bright yellowInvolucres are 5-6(-7) mm high, moderately covered with black, stalked glands and minute stellate hairs.

Basal leaves (persistent throughout the season), are glaucous, lanceolate to oblanceolate, 5-12 times as long as wide, thinly covered with bulbous-based bristles and stellate hairs, varying to nearly glabrous.

Cypselae are cylindrical, with multiple ribs, truncated at the apex, approx 1.2-2.2 mm.  Pappus is of minutely barbed bristles.

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Similar species:  Pilosella ×floribunda, Pilosella caespitosa.

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For additional information on this and other hawkweed species, as well as a list of selected references, see my article, "Understanding Hawkweeds". 

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