Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Asterids: Campanulids: Asterales
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Helianthus microcephalus
FAMILY
Asteraceae
Go to FSUS key
Dig deeper at SERNEC, a consortium of southeastern herbaria.
Read more about Small Wood Sunflower at Vascular Plants of North Carolina.
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Helianthus microcephalus
FAMILY
Asteraceae
SYNONYMOUS WITH Flora of North America north of Mexico, vol. 19-20-21 (2006)
Helianthus microcephalus
INCLUDED WITHIN Vascular Flora of the Southeastern States (Cronquist 1980, Isely 1990)
Helianthus microcephalus
SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 179-65-015:
Helianthus microcephalus FAMILY Asteraceae
SYNONYMOUS WITH Manual of the Southeastern Flora (Small, 1933, 1938)
Helianthus microcephalus
COMMON NAME:
Small Wood Sunflower, Small-headed Sunflower
To see larger pictures, click or hover over the thumbnails.
)
USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913 pnd_hemi3_001_lvd
)
JK Marlow jkm200531_5451
May Greenville County SC
Roadside
)
JK Marlow jkm120812_376
August Greenville County SC
Ashmore Heritage Preserve
)
JK Marlow jkm120812_380
August Greenville County SC
Ashmore Heritage Preserve
Involucres 0.7-1cm long, bracts lanceolate, usually spreading apically, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).
COMPARE
involucral bracts of Sunflowers
)
JK Marlow jkm120812_380b
August Greenville County SC
Ashmore Heritage Preserve
Helianthus disc flowers have styles that are bifurcate [two-forked], per www.missouriplants.com
)
JK Marlow jkm120812_383
August Greenville County SC
Ashmore Heritage Preserve
)
JK Marlow jkm120812_389
August Greenville County SC
Ashmore Heritage Preserve
)
JK Marlow jkm120814_557
August Greenville County SC
Leaves pubescent beneath, at least on the midrib, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).
)
JK Marlow jkm120814_558
August Greenville County SC
Leaves mostly scabrous above, resin-dotted, abruptly narrowed to a petiole, per Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians (Horn, Cathcart, Hemmerly, & Duhl, 2005).
)
JK Marlow jkm130824_639
August Greenville County SC
Ashmore Heritage Preserve
Involucre body 6-13mm broad, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).
)
JK Marlow jkm130824_646
August Greenville County SC
Ashmore Heritage Preserve
)
JK Marlow jkm130824_649
August Greenville County SC
Ashmore Heritage Preserve
)
JK Marlow jkm130824_651
August Greenville County SC
Ashmore Heritage Preserve
)
JK Marlow jkm130824_654
August Greenville County SC
Ashmore Heritage Preserve
)
JK Marlow jkm230812_4983
August Greenville County SC
)
JK Marlow jkm0409b_35b
September Greenville County SC
Roadside
Heads small, with 5-8 ray flowers, numerous, on long slender stalks, per Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians (Horn, Cathcart, Hemmerly, & Duhl, 2005).
)
JK Marlow jkm180906_4600
September Greenville County SC
)
JK Marlow jkm200907_7107
September Greenville County SC
)
JK Marlow s040901_a
September Greenville County SC
Roadside
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Helianthus microcephalus
FAMILY
Asteraceae
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Helianthus microcephalus
FAMILY
Asteraceae
SYNONYMOUS WITH
Flora of North America north of Mexico, vol. 19-20-21
Helianthus microcephalus
INCLUDED WITHIN
Vascular Flora of the Southeastern States (Cronquist 1980, Isely 1990)
Helianthus microcephalus
SYNONYMOUS WITH
VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 179-65-015:
Helianthus microcephalus
FAMILY
Asteraceae
SYNONYMOUS WITH
Manual of the Southeastern Flora (Small, 1933, 1938)
Helianthus microcephalus
650
Forb
Perennial
Habitat: Dry woodlands and roadbanks, per Weakley's Flora
Native to the Carolinas & Georgia
Common (uncommon in GA Coastal Plain, rare in Carolina Coastal Plain)
CLICK HERE to see a map, notes, and images from Weakley's Flora of the Southeastern US.
LEAVES:
Simple
Opposite
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!
- All About South Carolina Wildflowers (Midgley, 1999) p172
- Gardening with the Native Plants of Tennessee (Hunter, 2002) p135
- Guide to the Wildflowers of SC, 2nd ed. (McMillan, Porcher, Rayner, & White; 2022) p271
- Newcomb's Wildflower Guide (Newcomb, 1977) p390
- Field Guide to the Rare Plants of Georgia (Chafin, 2007) p157
- Wildflowers of the Atlantic Southeast (Cotterman, Waitt, & Weakley, 2019) p299
- Field Guide to the Wildflowers of Georgia (Chafin, 2016) p088
- Wildflowers of Tennessee (Carman, 2005) p303
- Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians (Horn, Cathcart, Hemmerly, & Duhl, 2005) p353
- Wildflowers of the Southern Mountains (Smith, 1998) p192
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