Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Asterids: Lamiids: Gentianales
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Diodia virginiana
FAMILY
Rubiaceae
Go to FSUS key
Dig deeper at SERNEC, a consortium of southeastern herbaria.
Read more about Virginia Buttonweed at Vascular Plants of North Carolina.
(?)
PLANTS NATIONAL DATABASE:
Diodia virginiana
FAMILY
Rubiaceae
SYNONYMOUS WITH Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Diodia virginiana
INCLUDING Floristic Synthesis of North America (Kartesz, 1999)
Diodia virginiana var. attenuata
INCLUDING Floristic Synthesis of North America (Kartesz, 1999)
Diodia virginiana var. latifolia
INCLUDING Floristic Synthesis of North America (Kartesz, 1999)
Diodia virginiana var. virginiana
INCLUDED WITHIN VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 173-03-001:
Diodia virginiana FAMILY Rubiaceae
INCLUDING Manual of the Southeastern Flora (Small, 1933, 1938)
Diodia hirsuta
INCLUDING Manual of the Southeastern Flora (Small, 1933, 1938)
Diodia tetragona
INCLUDING Manual of the Southeastern Flora (Small, 1933, 1938)
Diodia virginiana
COMMON NAME:
Virginia Buttonweed, Large Buttonweed
To see larger pictures, click or hover over the thumbnails.
)
USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913 pnd_divi3_001_lvd
)
USDA-NRCS PLANTS Database / USDA Wetland flora: Field office illustrated guide pnd_divi3_005_lvd
)
JK Marlow jkm160515_662
May McCormick County SC
)
JK Marlow jkm0507n_27
July Greenville County SC
Leaves are sessile and opposite; flowers 1 (rarely 2) per leaf axil, per Guide to the Wildflowers of SC, 1st ed. (Porcher & Rayner, 2001).
)
JK Marlow jkm160726_032
July Polk County NC
Pearson's Falls
Two 4-6mm long, linear-lanceolate sepals (vs. D. teres has 4 sepals), per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).
)
JK Marlow jkm230706_4228
July Pickens County SC
Glassy Mountain Heritage Preserve
The white salverform flowers are sessile and borne in the leaf axils, per Wildflowers of Tennessee (Carman, 2005).
)
JK Marlow jkm080816_021
August Greenville County SC
Thin, narrowly lanceolate leaves up to 2" long, per Wildflowers of the Southern Mountains (Smith, 1998).
)
JK Marlow jkm080816_025b
August Greenville County SC
)
JK Marlow jkm080816_025c
August Greenville County SC
Connate stipules are one of the distinctive features of Rubiaceae, per Plant Systematics (Simpson, 2010).
)
JK Marlow jkm160826_002
August Greenville County SC
)
Richard and Teresa Ware rtw_diodia_virginiana
August
The four stamens alternate with the four petals; the style is cleft, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Diodia virginiana
FAMILY
Rubiaceae
(?)
PLANTS NATIONAL DATABASE:
Diodia virginiana
FAMILY
Rubiaceae
SYNONYMOUS WITH
Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Diodia virginiana
INCLUDING
Floristic Synthesis of North America (Kartesz, 1999)
Diodia virginiana var. attenuata
INCLUDING
Floristic Synthesis of North America (Kartesz, 1999)
Diodia virginiana var. latifolia
INCLUDING
Floristic Synthesis of North America (Kartesz, 1999)
Diodia virginiana var. virginiana
INCLUDED WITHIN
VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 173-03-001:
Diodia virginiana
FAMILY
Rubiaceae
INCLUDING
Manual of the Southeastern Flora (Small, 1933, 1938)
Diodia hirsuta
INCLUDING
Manual of the Southeastern Flora (Small, 1933, 1938)
Diodia tetragona
INCLUDING
Manual of the Southeastern Flora (Small, 1933, 1938)
Diodia virginiana
470
Forb
Perennial
Habitat: Ditches, wet fields, wet swales along highways, other moist to wet habitats, 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
Opposite
Margins entire
FLOWER:
Summer/Fall
White
Radially symmetrical
4-merous
2-lobed calyx
4-lobed salverform corolla
4 stamens
Bisexual
FRUIT:
Summer/Fall
TO LEARN MORE about this plant, look it up in a good book!
- Forest Plants of the Southeast and Their Wildlife Uses (Miller & Miller, 2005) p056
- Guide to the Wildflowers of SC, 1st ed. (Porcher & Rayner, 2001) p265
- Guide to the Plants of Granite Outcrops (Murdy & Carter, 2000) p61
- Wildflowers of the Atlantic Southeast (Cotterman, Waitt, & Weakley, 2019) p104
- Wildflowers of the Eastern United States (Duncan & Duncan, 1999) p099
- Field Guide to the Wildflowers of Georgia (Chafin, 2016) p317
- Wildflowers of Tennessee (Carman, 2005) p261
- Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians (Horn, Cathcart, Hemmerly, & Duhl, 2005) p304
- Wildflowers of the Southern Mountains (Smith, 1998) p166
- Wildflowers of the Sandhills Region (Sorrie, 2011) p318
- Weeds of Southern Turfgrasses (Murphy et al., 1992) p175
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