OF THE CAROLINAS & GEORGIA

Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Asterids: Campanulids: Asterales

WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Helianthus tuberosus   FAMILY Asteraceae   Go to FSUS key


SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Helianthus tuberosus   FAMILY Asteraceae

SYNONYMOUS WITH Flora of North America
Helianthus tuberosus

SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 179-65-020:
Helianthus tuberosus   FAMILY Asteraceae

SYNONYMOUS WITH Manual of the Southeastern Flora (Small, 1933, 1938)
Helianthus tuberosus

 

COMMON NAME:
Jerusalem Artichoke


         To see larger pictures, click or hover over the thumbnails.

image of Helianthus tuberosus, Jerusalem Artichoke

USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913    pnd_hetu_001_lvd

        

image of Helianthus tuberosus, Jerusalem Artichoke

USDA-NRCS PLANTS Database / USDA Wetland flora: Field office illustrated guide    pnd_hetu_013_lvd

        

image of Helianthus tuberosus, Jerusalem Artichoke

JK Marlow    jkm140809_415

August    Greenville County    SC

Swamp Rabbit Trail

Has longer petioles and wider leaves than other perennial sunflowers, per www.illinoiswildflowers.info.

image of Helianthus tuberosus, Jerusalem Artichoke

JK Marlow    jkm140823_031

August    Greenville County    SC

Swamp Rabbit Trail

Stems 1-3m tall, internodes fairly uniform, per Vascular Flora of the Carolinas.

image of Helianthus tuberosus, Jerusalem Artichoke

JK Marlow    jkm140823_033

August    Greenville County    SC

Swamp Rabbit Trail

Unlike most sunflowers, the stems are covered with spreading hairs, per www.illinoiswildflowers.info.

image of Helianthus tuberosus, Jerusalem Artichoke

JK Marlow    jkm140823_038

August    Greenville County    SC

Swamp Rabbit Trail

The stem hairs are white, widely spreading, and slightly stiff, per www.illinoiswildflowers.info.

image of Helianthus tuberosus, Jerusalem Artichoke

JK Marlow    jkm140823_041

August    Greenville County    SC

Swamp Rabbit Trail

Ray florets 10-20; laminae 25-40mm, per Flora of North America.

image of Helianthus tuberosus, Jerusalem Artichoke

JK Marlow    jkm140823_046

August    Greenville County    SC

Swamp Rabbit Trail

image of Helianthus tuberosus, Jerusalem Artichoke

JK Marlow    jkm140823_048b

August    Greenville County    SC

Swamp Rabbit Trail

Phyllaries lanceolate, subequal, apices acuminate, per Flora of North America.

image of Helianthus tuberosus, Jerusalem Artichoke

JK Marlow    jkm140823_050

August    Greenville County    SC

Swamp Rabbit Trail

Base of phyllaries appressed, apices ± spreading (sometimes reflexed in fruit), per Flora of North America.

image of Helianthus tuberosus, Jerusalem Artichoke

JK Marlow    jkm140823_056

August    Greenville County    SC

Swamp Rabbit Trail

image of Helianthus tuberosus, Jerusalem Artichoke

JK Marlow    jkm140906_220

September    Swain County    NC

image of Helianthus tuberosus, Jerusalem Artichoke

JK Marlow    jkm140906_222

September    Swain County    NC

image of Helianthus tuberosus, Jerusalem Artichoke

JK Marlow    jkm140906_224

September    Swain County    NC

image of Helianthus tuberosus, Jerusalem Artichoke

JK Marlow    jkm140906_229

September    Swain County    NC

Petioles 2-8cm (often ± winged), per Flora of North America.

image of Helianthus tuberosus, Jerusalem Artichoke

JK Marlow    jkm140906_238

September    Swain County    NC

image of Helianthus tuberosus, Jerusalem Artichoke

Sam Pratt    sbp_2787

September    Spartanburg County    SC

In cultivation

image of Helianthus tuberosus, Jerusalem Artichoke

Sam Pratt    sbp_2797_2799

September    Spartanburg County    SC

In cultivation

image of Helianthus tuberosus, Jerusalem Artichoke

Sam Pratt    sbp_2802

September    Spartanburg County    SC

In cultivation

Phyllaries more wide and triangular-shaped than those of most sunflowers, per www.illinoiswildflowers.info.

image of Helianthus tuberosus, Jerusalem Artichoke

Sam Pratt    sbp_2804

September    Spartanburg County    SC

In cultivation

image of Helianthus tuberosus, Jerusalem Artichoke

Dan Whitten    sdw_flowers_top_view

September    Spartanburg County    SC

image of Helianthus tuberosus, Jerusalem Artichoke

Dan Whitten    sdw_leave_shape

September    Spartanburg County    SC

image of Helianthus tuberosus, Jerusalem Artichoke

Dan Whitten    sdw_phylaries

September    Spartanburg County    SC

Phyllaries ciliate, abaxial faces hispidulous or puberulent, gland-dotted, per Flora of North America.


click here to see other plants that look similar to this COMPARE involucral bracts of Sunflowers

image of Helianthus tuberosus, Jerusalem Artichoke

Dan Whitten    sdw_stem_hairs_leaf_base

September    Spartanburg County    SC

image of Helianthus tuberosus, Jerusalem Artichoke

Terry Holdsclaw    tdh_h_tuberosus_1728

September    Catawba County    NC

image of Helianthus tuberosus, Jerusalem Artichoke

Terry Holdsclaw    tdh_h_tuberosus_1730

September    Catawba County    NC

image of Helianthus tuberosus, Jerusalem Artichoke

Terry Holdsclaw    tdh_h_tuberosus_1738b

September    Catawba County    NC

Disc florets bisexual, fertile; lobes yellow; anthers dark brown or black, per Flora of North America.

 

WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Helianthus tuberosus   FAMILY Asteraceae

SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Helianthus tuberosus   FAMILY Asteraceae

SYNONYMOUS WITH Flora of North America
Helianthus tuberosus

SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 179-65-020:
Helianthus tuberosus   FAMILY Asteraceae

SYNONYMOUS WITH Manual of the Southeastern Flora (Small, 1933, 1938)
Helianthus tuberosus

 

Find by SCIENTIFIC NAME:

655

Forb
Perennial

Native: west of the Carolinas & Georgia

Common (uncommon in GA Mountains & Piedmont)

Habitat: Native in rich bottomlands and along streams, disturbed areas, cultivated in gardens for the edible tubers, per Weakley's Flora

map
Click here to see a map, notes, and images from Weakley's Flora of the Southeastern US.

Click here to see a map showing all occurrences known to SERNEC, a consortium of southeastern herbaria. (Zoom in to see more detail.)

LEAVES:
Simple
Lower opposite or alternate, upper usually alternate
Petioles 2-8cm long

FLOWER:
Summer/Fall
Rays: Yellow
Disc: Yellow
Disc flowers bisexual & fertile/ Ray flowers pistillate but sterile
Inferior ovary

FRUIT:
Summer/Fall
Brown
Achene

 

TO LEARN MORE about this plant, look it up in a good book!



 


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