Helianthus tuberosus




Family Asteraceae (alt. Compositae)
Scientific name Helianthus tuberosus L.
Synonyms Helianthus besseyi Bates; Helianthus esculentus Warczewicz; Helianthus mollissimus E. Watson; Helianthus neomexicanus Wooton & Standley; Helianthus serotinus Tausch; Helianthus strumosus L. subsp. tomentosus (Michaux) Anashchenko; Helianthus subcanescens (A. Gray) E. Watson; Helianthus tomentosus Michaux; Helianthus tuberosus L. var. albus Cockerell; Helianthus tuberosus L. var. albus Alefeld; Helianthus tuberosus L. var. alexandri Cockerell; Helianthus tuberosus L. var. fusiformis Cockerell; Helianthus tuberosus L. var. lutescens Alefeld; Helianthus tuberosus L. var. multituberculatus Cockerell; Helianthus tuberosus L. var. nebrascensis Cockerell; Helianthus tuberosus L. var. oblongifolius Alefeld; Helianthus tuberosus L. var. purpurellus Cockerell; Helianthus tuberosus L. var. purpureus Cockerell; Helianthus tuberosus L. var. ruber Alefeld; Helianthus tuberosus L. var. subcanescens A. Gray; Helianthus tuberosus L. var. typicus Cockerell; Helianthus vicetinus Turra ex Zahghieri
Common name (Japanese common name) kiku-imo [potato aster]
(English common name) Jerusalem artichoke, earth apple
Distribution (Japan) Hokkaido, Honshu, Shikoku, Kyushu, Okinawa
(Other nations) [native] USA
Chromosomal number 2n=102
Description Plants electing 1-3m. Flowers capitulums 5-10mm, 10-20 yellow ray flowers 3-5cm, flowering in August to November. Perennial plants.
Reference Helianthus tuberosus L.
Helianthus tuberosus L.
Helianthus tuberosus L.
Note Naturalized plants (intorduced as vegitable in 1959)



August 2007 at roadside August 2007 at roadside August 2007 at roadside



August 2007 at roadside August 2007 at roadside