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
Dig deeper at SERNEC, a consortium of southeastern herbaria.
Read more about Jerusalem Artichoke at Vascular Plants of North Carolina.
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Helianthus tuberosus
FAMILY
Asteraceae
SYNONYMOUS WITH Flora of North America north of Mexico, vol. 19-20-21 (2006)
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.
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USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913 pnd_hetu_001_lvd
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USDA-NRCS PLANTS Database / USDA Wetland flora: Field office illustrated guide pnd_hetu_013_lvd
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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.
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JK Marlow jkm140823_031
August Greenville County SC
Swamp Rabbit Trail
Stems 1-3m tall, internodes fairly uniform, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).
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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.
)
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.
)
JK Marlow jkm140823_041
August Greenville County SC
Swamp Rabbit Trail
Ray florets 10-20; laminae 25-40mm, per Flora of North America.
)
JK Marlow jkm140823_046
August Greenville County SC
Swamp Rabbit Trail
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JK Marlow jkm140823_048b
August Greenville County SC
Swamp Rabbit Trail
Phyllaries lanceolate, subequal, apices acuminate, per Flora of North America.
)
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.
)
JK Marlow jkm140823_056
August Greenville County SC
Swamp Rabbit Trail
)
JK Marlow jkm140906_220
September Swain County NC
)
JK Marlow jkm140906_222
September Swain County NC
)
JK Marlow jkm140906_224
September Swain County NC
)
JK Marlow jkm140906_229
September Swain County NC
Petioles 2-8cm (often ± winged), per Flora of North America.
)
JK Marlow jkm140906_238
September Swain County NC
)
Sam Pratt sbp_2787
September Spartanburg County SC
In cultivation
)
Sam Pratt sbp_2797_2799
September Spartanburg County SC
In cultivation
)
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.
)
Sam Pratt sbp_2804
September Spartanburg County SC
In cultivation
)
Dan Whitten sdw_flowers_top_view
September Spartanburg County SC
)
Dan Whitten sdw_leave_shape
September Spartanburg County SC
)
Dan Whitten sdw_phylaries
September Spartanburg County SC
Phyllaries ciliate, abaxial faces hispidulous or puberulent, gland-dotted, per Flora of North America.
COMPARE
involucral bracts of Sunflowers
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Dan Whitten sdw_stem_hairs_leaf_base
September Spartanburg County SC
)
Terry Holdsclaw tdh_h_tuberosus_1728
September Catawba County NC
)
Terry Holdsclaw tdh_h_tuberosus_1730
September Catawba County NC
)
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 north of Mexico, vol. 19-20-21
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
655
Forb
Perennial
Habitat: Native in rich bottomlands and along streams, disturbed areas, cultivated in gardens for the edible tubers, per Weakley's Flora
Native: west of the Carolinas & Georgia
Common (uncommon in GA Mountains & GA Piedmont)
CLICK HERE to see a map, notes, and images from Weakley's Flora of the Southeastern US.
LEAVES:
Simple
Lower opposite or alternate, upper usually alternate
Petioles 2-8cm long
FLOWER:
Summer/Fall
Rays: Yellow
Disc: Yellow
Inferior ovary
Disc flowers bisexual & fertile/ Ray flowers pistillate but sterile
FRUIT:
Summer/Fall
Brown
Achene
TO LEARN MORE about this plant, look it up in a good book!
- Forest Plants of the Southeast and Their Wildlife Uses (Miller & Miller, 2005) p094
- Newcomb's Wildflower Guide (Newcomb, 1977) p388
- Wildflowers of the Atlantic Southeast (Cotterman, Waitt, & Weakley, 2019) p285
- Wildflowers of the Eastern United States (Duncan & Duncan, 1999) p123
- Wild Flowers of NC, 2nd edition (Justice, Bell, & Lindsey, 2005) p272
- Field Guide to the Wildflowers of Georgia (Chafin, 2016) p089
- Wildflowers of Tennessee (Carman, 2005) p305
- Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians (Horn, Cathcart, Hemmerly, & Duhl, 2005) p355
- Wildflowers of the Southern Mountains (Smith, 1998) p192
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