Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Rosids: Fabids: Oxalidales
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Oxalis dillenii
FAMILY
Oxalidaceae
Go to FSUS key
Dig deeper at SERNEC, a consortium of southeastern herbaria.
Read more about Southern Yellow Wood-sorrel at Vascular Plants of North Carolina.
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Oxalis dillenii
FAMILY
Oxalidaceae
SYNONYMOUS WITH Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Oxalis dillenii
SYNONYMOUS WITH Flora of North America
Oxalis dillenii
INCLUDED WITHIN Guide to the Vascular Plants of Florida (Wunderlin & Hansen, 2011)
Oxalis corniculata
INCLUDED WITHIN Shinners & Mahler’s Illustrated Flora of North Central Texas (Diggs, Lipscomb, & O’Kennon, 1999)
Oxalis stricta
SYNONYMOUS WITH (MISAPPLIED) Flora of West Virginia (Strausbaugh & Core, 1978)
Oxalis stricta
INCLUDING Oxalidaceae in the southeastern United States (Robertson, 1975)
Oxalis dillenii ssp. dillenii
INCLUDING VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 100-01-005/006ab:
Oxalis dillenii FAMILY Oxalidaceae
INCLUDING Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968)
Oxalis florida var. filipes
INCLUDING Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968)
Oxalis florida var. florida
INCLUDING (MISAPPLIED) Britton & Brown Illus Flora of Northeast US & adjacent Canada (Gleason, 1952)
Oxalis stricta
INCLUDING Gray's Manual of Botany (Fernald, 1950)
Oxalis florida
INCLUDING Manual of the Southeastern Flora (Small, 1933, 1938)
Xanthoxalis brittoniae
INCLUDING Manual of the Southeastern Flora (Small, 1933, 1938)
Xanthoxalis filipes
COMMON NAME:
Southern Yellow Wood-sorrel, Slender Yellow Wood-sorrel
To see larger pictures, click or hover over the thumbnails.
)
USDA-NRCS PLANTS Database / Britton, N.L., and A. Brown. 1913 pnd_xabr2_001_lvd
)
Gill Newberry gn04_oxalis_dillenii
April
)
JK Marlow jkm0404y_29
April Rutherford County NC
Chimney Rock Park
Pedicels in fruit deflexed (to horizontal), per Further Observations on the Oxalis dillenii Group (Oxalidaceae) (Nesom et al., 2014).
)
JK Marlow jkm120408_797b
April Greenville County SC
Leaflets 3, obcordate, lobed 1/5-1/3 length, green on both surfaces, per Again: Taxonomy of Yellow-flowered Caulescent Oxalis in eastern North America (Nesom, 2009).
)
JK Marlow jkm120408_826
April Greenville County SC
)
JK Marlow jkm170429_401
April Greenville County SC
)
JK Marlow jkm170429_401b
April Greenville County SC
Flower petals yellow, without red lines, 5-11mm, per Further Observations on the Oxalis dillenii Group (Oxalidaceae) (Nesom et al., 2014).
)
JK Marlow jkm250429_0059
April Greenville County SC
Tall Pines Wildlife Management Area
)
JK Marlow jkm250429_0062
April Greenville County SC
Tall Pines Wildlife Management Area
Stems evenly strigose from base to peduncles and pedicels, per Weakley's Flora (2025).
)
JK Marlow jkm250429_0063
April Greenville County SC
Tall Pines Wildlife Management Area
Stems evenly strigose from base to peduncles and pedicels, per Weakley's Flora (2025).
)
JK Marlow jkm250618_1232
June Greenville County SC
Capsule 1-2.5cm long, densely gray pubescent, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Oxalis dillenii
FAMILY
Oxalidaceae
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Oxalis dillenii
FAMILY
Oxalidaceae
SYNONYMOUS WITH
Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Oxalis dillenii
SYNONYMOUS WITH
Flora of North America
Oxalis dillenii
INCLUDED WITHIN
Guide to the Vascular Plants of Florida (Wunderlin & Hansen, 2011)
Oxalis corniculata
INCLUDED WITHIN
Shinners & Mahler’s Illustrated Flora of North Central Texas (Diggs, Lipscomb, & O’Kennon, 1999)
Oxalis stricta
SYNONYMOUS WITH (MISAPPLIED)
Flora of West Virginia (Strausbaugh & Core, 1978)
Oxalis stricta
INCLUDING
Oxalidaceae in the southeastern United States (Robertson, 1975)
Oxalis dillenii ssp. dillenii
INCLUDING
VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 100-01-005/006ab:
Oxalis dillenii
FAMILY
Oxalidaceae
INCLUDING
Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968)
Oxalis florida var. filipes
INCLUDING
Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968)
Oxalis florida var. florida
INCLUDING (MISAPPLIED)
Britton & Brown Illus Flora of Northeast US & adjacent Canada (Gleason, 1952)
Oxalis stricta
INCLUDING
Gray's Manual of Botany (Fernald, 1950)
Oxalis florida
INCLUDING
Manual of the Southeastern Flora (Small, 1933, 1938)
Xanthoxalis brittoniae
INCLUDING
Manual of the Southeastern Flora (Small, 1933, 1938)
Xanthoxalis filipes
1002
Forb
Perennial
Habitat: Roadsides, pastures, lawns, a wide variety of other 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:
Ternately compound: 3 leaflets
Alternate & basal
Petioles 1-4cm long
FLOWER:
Spring/Summer/Fall
Yellow
(without red lines)
Radially symmetrical
5 sepals
5 petals
10 stamens, of 2 lengths
Flowers in umbelliform cymes
FRUIT:
Spring/Summer/Fall
Capsule
TO LEARN MORE about this plant, look it up in a good book!
- Wildflowers of the Atlantic Southeast (Cotterman, Waitt, & Weakley, 2019) p257
- Field Guide to the Wildflowers of Georgia (Chafin, 2016) p276
- Wildflowers of Tennessee (Carman, 2005) p169?
- Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians (Horn, Cathcart, Hemmerly, & Duhl, 2005) p203?
- Wildflowers of the Southern Mountains (Smith, 1998) p089
- Weeds of Southern Turfgrasses (Murphy et al., 1992) p158?
If a search such as "Carex leptalea var. leptalea" doesn't deliver the results you want, try "Carex leptalea".
Or, to minimize chances of a misspelling, try just "Carex le".
Less is more: If "pencil flower" doesn't deliver the results you want, try "pencil".