Family: Asteraceae (Sunflower family)
Duration: Perennial
Height: 40 -100 cm (1 to 3 ft)
Blooming: Sept. - Oct.
Riddell's Goldenrod
Solidago riddellii Frank ex Riddell
Stem: glabrous (no hair) and erect.
Flowers: are in 30-450 yellow flowerheads. These are arranged in a flat-topped arrangement set up like stages on risers.
Leaves: the basal leaves usually wither by the time the plant flowers. The leaves are alternately arranged and fold longitudinally along the midrib leading to a sharp point. Many times the petioles are winged. The leaves have a rough texture.
Sun: Full
Ideal condition: moist, rich soil in full sun.
SOURCES & FURTHER RESOURCES:
Flora of North America - Solidago riddellii
Plants of the Eloise Butler Wildflower Garden - Riddell's goldenrod
all photos by Nathanael Pilla
Landscape: A wonderful goldenrod for adding that fall yellow to your flowerbed. It is low maintenance and does not usually get powdery mildew as with other goldenrods.
Comments: Riddell's goldenrod is very similar to Ohio goldenrod. Riddell's goldenrod has longitudinally folded leaves and has 3 or more longitudinal veins. Ohio goldenrod has one longitudinal vein and is not folded.
Etymology: The epithet name riddellii is in honor of the botanist, John Leonard Riddell. The genus, solidago, comes from the Latin word, solida meaning "whole" and ago meanining "to make".
Species Present and Native
