Helianthus tuberosus

Common Name: 
Jerusalem artichoke
Scientific Name: 
Helianthus tuberosus L.
Family Name: 
Asteraceae (Compositae) - Aster or Sunflower Family
Identification Notes
Life Cycle
introduced perennial, reproducing by seed, rhizomes and tubers at rhizome tips
upright, very tall, branched above, hairy, rough, grooved
Stems of Jerusalem Artichoke
lower leaves opposite lower, upper leaves alternate, oval to lanceolate, upper surface rough, lower surface hairy, toothed margins, tip narrowly pointed; petioles winged
Leaves of Jerusalem Artichoke
heads of 12 to 20, large, yellow ray (ligulate) surrounding darker, yellow disc (tubulate) florets, bracts green and spreading; clusters terminal
Flowers of Jerusalem Artichoke
Flowers of Jerusalem Artichoke