Solidago gigantea (Giant Goldenrod) - photos and description

Solidago gigantea

Solidago gigantea

Solidago gigantea

Solidago gigantea

Solidago gigantea
Stems glabrous

Solidago gigantea
Upper stem leaves in above photo

Solidago gigantea
Lower stem leaves in above photo

General: Stout species with a leafy stem. Stems single, plants rhizomatous and glabrous.

Flowers: Inflorescence a pyramidal-shaped panicle. The inflorescence measured at 16 cm wide by 11 cm tall, a flower head measured at 2 mm diameter.

Leaves: Leaves alternate, elliptical, sharp-toothed above the middle, top leaves sessile, lower leaves have short petioles. Lower leaf highlighted in photo above was measured at 8 cm long by 22 mm wide (including very short petiole).

Height: Height listed in Budd's Flora to 150 cm, we measured plants to 92 cm tall.

Habitat: Bluffs, coulees, and woodlands.

Abundance: Common.

Origin: Native.

Similar species: Very similar to Solidago canadensis however that species has pubescent stems, while the stems of Solidago gigantea are glabrous.

When and where photographed: Photos taken July 28th, scrubby meadow beside aspen grove, East Block Grasslands Park, about 300 km southwest of our home in Regina, SK.