15 cm ruler for scale

Two rows of floral bracts

Lower stem leaf in above photo

Upper stem leaf in above photo

 Annual plant with an erect, slender, branching growth habit. Flower heads yellow, comprised of only ray florets, ray florets toothed at apex. We measured a flower head at 2.5 cm wide. Involucre with two rows, inner row is linear. Basal leaves usually absent when plant is flowering. Leaves alternate, sessile, linear, lowest stem leaves with a few teeth. We measured a lower stem leaf at 45 mm long and 7 mm wide, and an upper stem leaf at 40 mm long and 3 mm wide. Stems pubescent, leaves top and bottom puberelent.

Non-native, listed as noxious weed in some provinces. Habitat is roadsides and waste ground, parklands and boreal forest.

Height listed in Budd's Flora to 50 cm, we measured plants to 66 cm tall.

Photos taken July 10th in a gravel pit, Meadow Lake Provincial Park, 550 km northwest of our home in Regina, SK.

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