Dig deeper at SERNEC, a consortium of southeastern herbaria.
Read more about Jerusalem Artichoke at Vascular Plants of North Carolina.
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 (Radford, Ahles, & Bell, 1968) 179-65-020:
Helianthus tuberosus
FAMILY
Asteraceae
COMMON NAME:
Jerusalem Artichoke
Click or hover over the thumbnails to see larger pictures.
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.
JK Marlow jkm140823_031
August Greenville County SC
Swamp Rabbit Trail
Stems 1-3m tall, internodes fairly uniform, per Vascular Flora of the Carolinas.
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_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 jkm140906_229
September Swain County NC
Petioles 2-8cm (often ± winged), per Flora of North America.
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.
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
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.