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Asteraceae
Helianthus

not marked as a favorite taxon Helianthus tuberosus Linnaeus. Common name: Jerusalem Artichoke. Phenology: Jul-Oct. Habitat: Native in rich bottomlands and along streams, disturbed areas, cultivated in gardens for the edible tubers. Distribution: Native distribution is unclear, perhaps OH, MI, MN, ND, and e. MT south to w. TN, LA, and TX.

Glossary (beta!)

Origin/Endemic status: Native

Synonymy ⓘ: = Ar, C, Fl7, FNA21, K4, Mi, NcTx, NE, NY, Oh3, Pa, RAB, S, SE1, Tat, Tn, Tx, Va, W, WH3; > Helianthus tuberosus L. var. subcanescens A.Gray — F, G, GrPl; > Helianthus tuberosus L. var. tuberosus — F, G, Il. Basionym: Helianthus tuberosus L. 1753

Links to other floras: = Helianthus tuberosus - FNA21

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Wetland Indicator Status:

  • Atlantic and Gulf Coastal Plain: FACU
  • Eastern Mountains and Piedmont: FACU
  • Great Plains: FACU
  • Midwest: FACU
  • Northcentral & Northeast: FACU

Heliophily ⓘ: 7

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image #1 of Helianthus tuberosus© Gary P. Fleming | Original Image ⭷
image #2 of Helianthus tuberosus© Jeffrey S. Pippen | Original Image ⭷
image #3 of Helianthus tuberosus© Sonnia Hill | Original Image ⭷
image #4 of Helianthus tuberosus© Jeffrey S. Pippen | Original Image ⭷
image #5 of Helianthus tuberosus© Jeffrey S. Pippen | Original Image ⭷
image #9 of Helianthus tuberosus© Sonnia Hill | Original Image ⭷
image #10 of Helianthus tuberosus© Keith Bradley | Original Image ⭷

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Horticultural Information

NCBG trait

Intro: Erect perennial of rich bottomlands, streamsides and disturbed areas. Native of farther west in North America and cultivated in gardens for the edible tubers.

Stems: Stems branched occasionally above, light green to reddish-brown, rough-hairy.

Leaves: Leaves alternate above, sometimes opposite in middle to lower stems; on winged petioles (3/4-4 in. long); oval to broadly lance-shaped; 3-9 in. long; 3-veined; toothed; rough hairy above with very short grayish hairs beneath.

Inforescence:

Flowers: Composite flowers (heads) numerous in flat-topped clusters; heads 2-4 in. wide, consisting of 10-20 yellow ray florets encircling a center disk of yellow tubular florets. Overlapping, loosely ascending bracts surround the base of each head.

Fruits: Fruit a mottled light-and-dark-brown achene.

Comments:

Height: 3-11 ft.

plant sale text:

bloom table text:

description: Erect perennial of rich bottomlands, streamsides and disturbed areas. Native of farther west in North America and cultivated in gardens for the edible tubers.

stems: Stems branched occasionally above, light green to reddish-brown, rough-hairy.

leaves: Leaves alternate above, sometimes opposite in middle to lower stems; on winged petioles (3/4-4 in. long); oval to broadly lance-shaped; 3-9 in. long; 3-veined; toothed; rough hairy above with very short grayish hairs beneath.

inflorescence:

flowers: Composite flowers (heads) numerous in flat-topped clusters; heads 2-4 in. wide, consisting of 10-20 yellow ray florets encircling a center disk of yellow tubular florets. Overlapping, loosely ascending bracts surround the base of each head.

fruits: Fruit a mottled light-and-dark-brown achene.

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cultural notes:

germination code:

native range:



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