Tragopogon dubius
 
Yellow Goat's-Beard

Flower Head Longitudinal Section

Regina
15-June-2020

Note the phyllaries are longer than the outer florets. All the florets are ligulate.  The ligule is the limb of the ligulate corolla and is attached to the end of the corolla tube.

bullet

Dubius: Answers to key questions in Budd's Flora and Flora of Alberta leading to this species. 
bullet

leaf tips straight; NOT [leaf tips usually coiled or curved back]

bullet

flower head stalk usually flared below flower head; NOT [stalk only slightly flared below flower head]

bullet

flower heads in bud cone-shaped, gradually tapered at the top; NOT [flower heads in bud urn-shaped, abruptly narrowed at the base and the top]

bullet

phyllaries usually longer than florets