Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Asterids: Campanulids: Asterales
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/14/23):
Rudbeckia hirta var. hirta
FAMILY
Asteraceae
Go to FSUS key
Dig deeper at SERNEC, a consortium of southeastern herbaria.
Read more about Rudbeckia at Vascular Plants of North Carolina.
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Rudbeckia hirta var. hirta
FAMILY
Asteraceae
INCLUDED WITHIN Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Rudbeckia hirta var. hirta
SYNONYMOUS WITH Flora of North America
Rudbeckia hirta var. hirta
INCLUDING Floristic Synthesis of North America (Kartesz, 1999)
Rudbeckia hirta
SYNONYMOUS WITH Floristic Synthesis of North America (Kartesz, 1999)
Rudbeckia hirta var. hirta
INCLUDED WITHIN VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 179-61-006:
Rudbeckia hirta FAMILY Asteraceae
INCLUDING Manual of the Southeastern Flora (Small, 1933, 1938)
Rudbeckia amplectens
INCLUDING Manual of the Southeastern Flora (Small, 1933, 1938)
Rudbeckia brittonii
INCLUDING Manual of the Southeastern Flora (Small, 1933, 1938)
Rudbeckia monticola
COMMON NAME:
Woodland Black-eyed Susan
To see larger pictures, click or hover over the thumbnails.
)
USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913 pnd_rubr11_001_lvd
)
JK Marlow jkm120526_602
May Spartanburg County SC
)
JK Marlow jkm250521_0463
May Greenville County SC
Poinsett Bridge Heritage Preserve
)
JK Marlow jkm0506g_2324
June Oconee County SC
Roadside
Stem covered with tiny barbs, thus uncomfortable for insects to climb, per Wildflowers of the Blue Ridge Parkway (Alderman, 1997).
)
JK Marlow jkm140603_409
June Pickens County SC
SC Botanical Garden
)
JK Marlow jkm140615_034
June Greenville County SC
Bunched Arrowhead Heritage Preserve
)
JK Marlow jkm140615_034b
June Greenville County SC
Bunched Arrowhead Heritage Preserve
Prongs of Y-shaped styles slender & pointed, vs. short & blunt in R. fulgida, per Wildflowers of the Southern Mountains (Smith, 1998).
)
JK Marlow jkm250618_1085
June Greenville County SC
Poinsett Bridge Heritage Preserve
Stems leafy throughout. Basal lvs broadly elliptic to ovate, 2.5-7cm wide, most ~2× long as wide, per Weakley's Flora (2025).
)
JK Marlow jkm250618_1086
June Greenville County SC
Poinsett Bridge Heritage Preserve
)
JK Marlow jkm250618_1087
June Greenville County SC
Poinsett Bridge Heritage Preserve
Leaves pubescent like the stem, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).
)
JK Marlow jkm250618_1088
June Greenville County SC
Poinsett Bridge Heritage Preserve
)
Kevin Adams kcarudbeckiahirta_30
June Blount County TN
10 or more sterile rays, yellow sometimes shading to orange, to 1.5" long, per Wildflowers of the Southern Mountains (Smith, 1998).
)
Ben Geer Keys bgk1276_b
July
Receptacle dark purple or brown, decidedly ovoid or hemispheric, per Wildflowers of the Southern Mountains (Smith, 1998).
)
Bobbie L Holt blh1276_a
July Anderson County SC
Rays yellow, 3.5-5cm long, often red at base; disc flowers blackish-purple, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).
)
JK Marlow jkm0407g_04
July Transylvania County NC
Blue Ridge Parkway
)
JK Marlow jkm080705_013
July Swain County NC
)
JK Marlow jkm080705_020
July Swain County NC
)
JK Marlow jkm080705_025
July Swain County NC
Involucral bracts linear to lanceolate, acute, spreading pubescent, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).
COMPARE
involucral bracts of Black-eyed Susan and Cutleaf Coneflower
)
JK Marlow jkm090707_026
July Avery County NC
The Roan Highlands
Disk florets bloom inward in successive circles of pollinating florets, per Book of Field and Roadside (Eastman, 2003).
)
JK Marlow jkm230720_4665
July Greenville County SC
Chestnut Ridge Heritage Preserve
Stems leafy throughout, per Weakley's Flora (2023).
)
Keith Bradley kab_rudbeckia_hirta_1877
July Blount County TN
Great Smoky Mountains National Park
)
Ben Geer Keys bgk1276_a
July?
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/14/23):
Rudbeckia hirta var. hirta
FAMILY
Asteraceae
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Rudbeckia hirta var. hirta
FAMILY
Asteraceae
INCLUDED WITHIN
Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Rudbeckia hirta var. hirta
SYNONYMOUS WITH
Flora of North America
Rudbeckia hirta var. hirta
INCLUDING
Floristic Synthesis of North America (Kartesz, 1999)
Rudbeckia hirta
SYNONYMOUS WITH
Floristic Synthesis of North America (Kartesz, 1999)
Rudbeckia hirta var. hirta
INCLUDED WITHIN
VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 179-61-006:
Rudbeckia hirta
FAMILY
Asteraceae
INCLUDING
Manual of the Southeastern Flora (Small, 1933, 1938)
Rudbeckia amplectens
INCLUDING
Manual of the Southeastern Flora (Small, 1933, 1938)
Rudbeckia brittonii
INCLUDING
Manual of the Southeastern Flora (Small, 1933, 1938)
Rudbeckia monticola
1276
Forb
Annual/Biennial/Perennial
Habitat: Fields, roadsides, woodlands, per Weakley's Flora
Native to the Carolinas & Georgia
Common
CLICK HERE to see a map, notes, and images from Weakley's Flora of the Southeastern US.
LEAVES:
Simple
Basal & alternate
FLOWER:
Spring/Summer
Rays: Yellow
Disc: Blackish-purple
Inferior ovary
Disc flowers bisexual & fertile/ Ray flowers sterile
FRUIT:
Spring/Summer
Blackish
Achene
TO LEARN MORE about this plant, look it up in a good book!
- All About South Carolina Wildflowers (Midgley, 1999) p239?
- Book of Field and Roadside (Eastman, 2003) p117?
- Forest Plants of the Southeast and Their Wildlife Uses (Miller & Miller, 2005) p162?
- Gardening with Native Plants of the South (Wasowski & Wasowski, 1994, 2020) p164?
- Gardening with the Native Plants of Tennessee (Hunter, 2002) p165?
- Great Smoky Mountains Wildflowers (Campbell, Hutson, Sharp, & Hutson, 1962) p112
- Guide to the Wildflowers of SC, 1st ed. (Porcher & Rayner, 2001) p391?
- Guide to the Wildflowers of SC, 2nd ed. (McMillan, Porcher, Rayner, & White; 2022) p542
- Field Guide to the Rare Plants of Georgia (Chafin, 2007) p311
- Wildflowers of the Atlantic Southeast (Cotterman, Waitt, & Weakley, 2019) p288
- Wildflowers of the Eastern United States (Duncan & Duncan, 1999) p121?
- Wild Flowers of NC, 2nd edition (Justice, Bell, & Lindsey, 2005) p271?
- Wildflowers of Tennessee (Carman, 2005) p320?
- Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians (Horn, Cathcart, Hemmerly, & Duhl, 2005) p370?
- Wildflowers & Plant Communities of the Southern Appalachian Mountains and Piedmont (Spira, 2011) p432?
- Wildflowers of the Southern Mountains (Smith, 1998) p189?
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