...Moist
...Variable
...Dry
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.
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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.
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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.
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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
)
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
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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.
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JK Marlow jkm140906_238
September Swain County NC
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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
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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.