Tall Goldenrod (Canada Goldenrod)
Kingdom: Plantae, Division: Tracheophyta, Class: Magnoliopsida, Order: Asterales, Family: Asteraceae, Genus: Solidago, Species: Solidago altissima · Asteraceae (Daisy, Aster, or Sunflower family) · Simple, deciduous herbaceous perennial leaf
Species
Solidago altissima
Leaf Type
Simple, deciduous herbaceous perennial leaf
Family
Asteraceae (Daisy, Aster, or Sunflower family)
Shape
Lanceolate to elliptic
Size
Approximately 2 to 5 inches long and 0.5 to 1 inch wide, typical for the species
Margin
Serrate (sharply toothed), particularly along the middle portion
Arrangement
Alternate
Rarity
Very Common
Color & Pattern
Vibrant medium to bright green upper surface with a slightly paler underside; uniform coloration without variegation or noticeable blemishes
Venation Pattern
Tri-nerved (pinnate with two prominent lateral veins branching near the base parallel to the central midrib)
Texture & Surface
Slightly rough to scabrous on the upper surface, glabrous to sparsely pubescent beneath
Description
Tall Goldenrod is an upright herbaceous perennial featuring a sturdy stem covered in numerous small, lance-shaped alternate leaves. It produces dense, plume-like panicles of bright yellow flowers in late summer and autumn, providing a brilliant splash of color in fields and along forest edges.
Key Features
Tri-nerved venation, sharply toothed lanceolate alternate leaves, scabrous upper leaf texture, and robust vertical stem
Habitat
Found in open disturbed areas, old fields, roadsides, pastures, and woodland edges with full sun to partial shade and well-draining soils
Geographic Range
Native to eastern and central North America, widely naturalized across other temperate regions globally
Condition Notes
Excellent health with vibrant green coloration and no visible signs of insect damage, disease, or nutrient deficiency
Interesting Facts
Despite common misconceptions, goldenrod pollen is heavy and sticky, meaning it is not wind-borne and does not cause hay fever; the real culprit is usually ragweed blooming at the same time
Medicinal & Uses
Traditionally used in herbal teas for its mild diuretic and anti-inflammatory properties, and widely valued in ornamental gardens and pollinator conservation plots
Ecological Role
Serves as a crucial late-season nectar and pollen source for a wide variety of native bees, butterflies, and beneficial insects preparing for winter
Similar Species
Canada Goldenrod (Solidago canadensis) and Late Goldenrod (Solidago gigantea); distinguished by stem pubescence and precise venation details
Foraging Tips
Look in sunny, disturbed soils and old fields from mid-summer through autumn when the bright yellow flower heads emerge to easily confirm identification
Toxicity Warning
Non-toxic to humans and generally safe, though grazing livestock rarely consume it in large quantities due to unpalatability