Dig deeper at SERNEC, a consortium of southeastern herbaria.
Read more about Roughleaf Sunflower 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 strumosus
FAMILY
Asteraceae
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Helianthus strumosus
FAMILY
Asteraceae
SYNONYMOUS WITH
VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 179-65-019:
Helianthus strumosus
FAMILY
Asteraceae
COMMON NAME:
Roughleaf Sunflower, Paleleaf Woodland Sunflower, Paleleaf Sunflower
Click or hover over the thumbnails to see larger pictures.
JK Marlow jkm190905_1352
September Greenville County SC
Plants rhizomatous, but not producing tubers, per Weakley's Flora (2018).
JK Marlow jkm190905_1354
September Greenville County SC
Rays usually 10+ in larger heads; anther appendages dark or reddish-brown, per Weakley's Flora (2018).
JK Marlow jkm190905_1357
September Greenville County SC
Phyllaries equal to or slightly exceeding disk, apex acute, per Weakley's Flora (2018).
JK Marlow jkm190905_1359
September Greenville County SC
Leaves thick, lanceolate, 8-14cm long, acuminate, serrate, scabrous above, per Vascular Flora of the Carolinas.
JK Marlow jkm190905_1360
September Greenville County SC
Differs from H. tuberosus in its glabrous/glabrate stems and lack of tubers, per Flora of North America.