Native & Naturalized Plants of the Carolinas & Georgia


655

Forb
Perennial

Native: west of the Carolinas & Georgia
Documented growing wild in GA NC SC

Common

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

map
To see a detailed map, click here

 

full sun partial shade ...Moist ...Variable ...Dry

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!



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

WEAKLEY'S FLORA (11/30/12):
Helianthus tuberosus   FAMILY Asteraceae

SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Helianthus tuberosus   FAMILY Asteraceae

SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (1968) 179-65-020:
Helianthus tuberosus   FAMILY Asteraceae

 

COMMON NAME:
Jersalem Artichoke


Click or hover over the thumbnails to see larger pictures.

image of Helianthus tuberosus

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

        

image of Helianthus tuberosus

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

        

image of Helianthus tuberosus

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

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

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

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

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

JK Marlow    jkm140823_046

August    Greenville County    SC

Swamp Rabbit Trail

image of Helianthus tuberosus

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

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

JK Marlow    jkm140823_056

August    Greenville County    SC

Swamp Rabbit Trail

image of Helianthus tuberosus

JK Marlow    jkm140906_220

September    Swain County    NC

image of Helianthus tuberosus

JK Marlow    jkm140906_222

September    Swain County    NC

image of Helianthus tuberosus

JK Marlow    jkm140906_224

September    Swain County    NC

image of Helianthus tuberosus

JK Marlow    jkm140906_229

September    Swain County    NC

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

image of Helianthus tuberosus

JK Marlow    jkm140906_238

September    Swain County    NC

image of Helianthus tuberosus

Sam Pratt    sbp_2787

September    Spartanburg County    SC

In cultivation

image of Helianthus tuberosus

Sam Pratt    sbp_2797_2799

September    Spartanburg County    SC

In cultivation

image of Helianthus tuberosus

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

Sam Pratt    sbp_2804

September    Spartanburg County    SC

In cultivation

image of Helianthus tuberosus

Dan Whitten    sdw_flowers_top_view

September    Spartanburg County    SC

image of Helianthus tuberosus

Dan Whitten    sdw_leave_shape

September    Spartanburg County    SC

image of Helianthus tuberosus

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

Dan Whitten    sdw_stem_hairs_leaf_base

September    Spartanburg County    SC

image of Helianthus tuberosus

Terry Holdsclaw    tdh_h_tuberosus_1728

September    Catawba County    NC

image of Helianthus tuberosus

Terry Holdsclaw    tdh_h_tuberosus_1730

September    Catawba County    NC

image of Helianthus tuberosus

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.