Helianthus tuberosus
Jerusalem artichoke

Helianthus tuberosus
Helianthus tuberosus
Helianthus tuberosus

Helianthus tuberosus
Photos, Renee Brecht
Britton & Brown
Botanical name: Helianthus tuberosus
Common name: Jerusalem artichoke
Group: dicot
Family: Asteraceae
Growth type: forb/herb
Duration: perennial
Origin: native
Plant height: 10'
Foliage: Leaves and stems are rough, branched to as wide as 5 feet. Leaves opposite on lower part of stem, alternate higher up, ovate, 5-10" long
Flower: Numerous yellow flower heads, 3-4" across with 10-20 rays
Flowering time: late August-September
Habitat: rich, damp thickets, moist, disturbed sites
Range in New Jersey: Cape May, Cumberland counties; Burlington and central Jersey
Heritage ranking, if any: n/a
Misc. The tuberous roots are edible and were cultivated by Native Americans. It is also used in Germany to produce a liquor, "Topinambur" and by industry as a source of fructose.

Attractive to butterflies; seeds eaten by finches and other songbirds.
Although native, it can become weedy in a garden.