Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Asterids: Campanulids: Asterales
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/14/23):
Helianthus resinosus
FAMILY
Asteraceae
Go to FSUS key
Dig deeper at SERNEC, a consortium of southeastern herbaria.
Read more about Hairy Sunflower at Vascular Plants of North Carolina.
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Helianthus resinosus
FAMILY
Asteraceae
SYNONYMOUS WITH Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Helianthus resinosus
SYNONYMOUS WITH Flora of North America north of Mexico, vol. 19-20-21 (2006)
Helianthus resinosus
SYNONYMOUS WITH Floristic Synthesis of North America (Kartesz, 1999)
Helianthus resinosus
SYNONYMOUS WITH (MISAPPLIED) VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 179-65-018:
Helianthus tomentosus FAMILY Asteraceae
SYNONYMOUS WITH Manual of the Southeastern Flora (Small, 1933, 1938)
Helianthus resinosus
SYNONYMOUS WITH (MISAPPLIED) Manual of the Southeastern Flora (Small, 1933, 1938)
Helianthus tomentosus
COMMON NAME:
Hairy Sunflower, Resinous Sunflower, Gray Sunflower, Resindot Sunflower
To see larger pictures, click or hover over the thumbnails.
)
JK Marlow jkm0307l_35
July Greenville County SC
Roadside
May grow 3-6' tall, per Wild Flowers of NC, 1st edition.
)
JK Marlow jkm0307l_37
July Greenville County SC
Roadside
)
JK Marlow jkm060723_146
July Transylvania County NC
Blue Ridge Parkway
Involucres 3-5cm broad; bracts lanceolate, acuminate, spreading, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).
COMPARE
involucral bracts of Sunflowers
)
JK Marlow jkm0408b_29
August Transylvania County NC
Blue Ridge Parkway
)
JK Marlow jkm0508g_31
August Greenville County SC
Tall Pines Wildlife Management Area
Flowers have about 12 wide, overlapping, 1.5" rays & a disk up to 1" across, per Wildflowers of the Southern Mountains (Smith, 1998).
)
JK Marlow jkm120812_392
August Greenville County SC
Ashmore Heritage Preserve
)
JK Marlow jkm120812_396
August Greenville County SC
Ashmore Heritage Preserve
Stems pubescent throughout, per Weakley's Flora.
)
JK Marlow jkm120812_401402
August Greenville County SC
Ashmore Heritage Preserve
)
JK Marlow jkm130824_623
August Greenville County SC
Ashmore Heritage Preserve
)
JK Marlow jkm130824_628
August Greenville County SC
Ashmore Heritage Preserve
Leaves tomentose beneath and velvety to the touch, or not, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).
)
JK Marlow jkm130824_633
August Greenville County SC
Ashmore Heritage Preserve
)
JK Marlow jkm130824_636
August Greenville County SC
Ashmore Heritage Preserve
Petioles obscured by decurrent leaf blade, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).
)
JK Marlow jkm150814_746
August Jackson County NC
Whiteside Mountain
)
JK Marlow jkm160816_532
August Oconee County SC
)
JK Marlow jkm0509e_29b
September Greenville County SC
Tall Pines Wildlife Management Area
Phyllaries attenuate, conspicuously exceeding disc in length, reflexed, per Weakley's Flora.
)
JK Marlow jkm210914_3698
September Greenville County SC
)
JK Marlow jkm210914_3699
September Greenville County SC
)
JK Marlow jkm210914_3700
September Greenville County SC
)
JK Marlow jkm210919_3747
September Greenville County SC
)
JK Marlow jkm210919_3748b
September Greenville County SC
)
JK Marlow s050911_ef
September Greenville County SC
Tall Pines Wildlife Management Area
Ovate or lance-ovate blade with a broadly winged, gradually narrowed petiole, per Weakley's Flora.
)
JK Marlow s070930_ab
September Greenville County SC
Ashmore Heritage Preserve
Two lower veins prominent and parallel to the midrib, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/14/23):
Helianthus resinosus
FAMILY
Asteraceae
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Helianthus resinosus
FAMILY
Asteraceae
SYNONYMOUS WITH
Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Helianthus resinosus
SYNONYMOUS WITH
Flora of North America north of Mexico, vol. 19-20-21
Helianthus resinosus
SYNONYMOUS WITH
Floristic Synthesis of North America (Kartesz, 1999)
Helianthus resinosus
SYNONYMOUS WITH (MISAPPLIED)
VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 179-65-018:
Helianthus tomentosus
FAMILY
Asteraceae
SYNONYMOUS WITH
Manual of the Southeastern Flora (Small, 1933, 1938)
Helianthus resinosus
SYNONYMOUS WITH (MISAPPLIED)
Manual of the Southeastern Flora (Small, 1933, 1938)
Helianthus tomentosus
654
Forb
Perennial
Habitat: woodlands, thickets, roadsides, per Weakley's Flora
Native to the Carolinas & Georgia
Uncommon (rare in Coastal Plain)
CLICK HERE to see a map, notes, and images from Weakley's Flora of the Southeastern US.
Click here to see a map showing all occurrences known to SERNEC, a consortium of southeastern herbaria. (Zoom in to see more detail.)
LEAVES:
Simple
Lower opposite, upper usually alternate
FLOWER:
Summer/Fall
Rays: Yellow
Disc: Yellow
Inferior ovary
Disc flowers bisexual & fertile/ Ray flowers pistillate but sterile
FRUIT:
Summer/Fall
Brown/Blackish
Achene
TO LEARN MORE about this plant, look it up in a good book!
- Field Guide to the Wildflowers of Georgia (Chafin, 2016) p089
- Wildflowers of the Southern Mountains (Smith, 1998) p192
- Wildflowers of the Sandhills Region (Sorrie, 2011) p224
If a search such as "Carex leptalea var. leptalea" doesn't deliver the results you want, try "Carex leptalea".
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Less is more: If "pencil flower" doesn't deliver the results you want, try "pencil".