Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Rosids: Malvids: Myrtales
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Oenothera tetragona
FAMILY
Onagraceae
Go to FSUS key
Dig deeper at SERNEC, a consortium of southeastern herbaria.
Read more about Northern Sundrops at Vascular Plants of North Carolina.
(?) INCLUDED WITHIN
PLANTS NATIONAL DATABASE:
Oenothera fruticosa ssp. tetragona
FAMILY
Onagraceae
INCLUDED WITHIN Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Oenothera fruticosa ssp. tetragona
INCLUDED WITHIN Flora of North America
Oenothera fruticosa ssp. glauca
INCLUDED WITHIN Floristic Synthesis of North America (Kartesz, 1999)
Oenothera fruticosa ssp. glauca
INCLUDED WITHIN VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 137-02-010:
Oenothera tetragona FAMILY Onagraceae
INCLUDING Manual of the Southeastern Flora (Small, 1933, 1938)
Kneiffia latifolia
INCLUDING Manual of the Southeastern Flora (Small, 1933, 1938)
Kneiffia tetragona
INCLUDING Manual of the Southeastern Flora (Small, 1933, 1938)
Kneiffia velutina
COMMON NAME:
Northern Sundrops, Appalachian Sundrops
To see larger pictures, click or hover over the thumbnails.
)
JK Marlow jkm070611_064
June Henderson County NC
)
JK Marlow jkm070611_065
June Henderson County NC
)
JK Marlow jkm070611_073
June Henderson County NC
Petals yellow, to 1" long, per Guide to the Wildflowers of SC (Porcher & Rayner, 2001).
)
JK Marlow jkm070611_077
June Henderson County NC
)
JK Marlow jkm070611_078
June Henderson County NC
)
Patrick D. McMillan pdmotetragona_trsp1
June Pickens County SC
Table Rock State Park
)
Patrick D. McMillan pdmotetragona_trsp6
June Pickens County SC
Table Rock State Park
)
Patrick D. McMillan pdmotetragona_trsp7
June Pickens County SC
Table Rock State Park
Hypanthium present, prolonged above the inferior ovary as a calyx tube, per Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968).
)
Patrick D. McMillan pdmotetragona_brp1
June-July? NC
Blue Ridge Parkway
Inflorescence usually erect. Petals (8-)15-35mm long, per Weakley's Flora.
)
Patrick D. McMillan pdmotetragona_brp2
June-July? NC
Blue Ridge Parkway
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Oenothera tetragona
FAMILY
Onagraceae
(?) INCLUDED WITHIN
PLANTS NATIONAL DATABASE:
Oenothera fruticosa ssp. tetragona
FAMILY
Onagraceae
INCLUDED WITHIN
Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Oenothera fruticosa ssp. tetragona
INCLUDED WITHIN
Flora of North America
Oenothera fruticosa ssp. glauca
INCLUDED WITHIN
Floristic Synthesis of North America (Kartesz, 1999)
Oenothera fruticosa ssp. glauca
INCLUDED WITHIN
VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 137-02-010:
Oenothera tetragona
FAMILY
Onagraceae
INCLUDING
Manual of the Southeastern Flora (Small, 1933, 1938)
Kneiffia latifolia
INCLUDING
Manual of the Southeastern Flora (Small, 1933, 1938)
Kneiffia tetragona
INCLUDING
Manual of the Southeastern Flora (Small, 1933, 1938)
Kneiffia velutina
984
Forb
Perennial
Habitat: Moist to wet meadows, woodlands, stream margins, river-scours, rocky shoals, per Weakley's Flora
Native to the Carolinas & Georgia
Uncommon in NC Mountains (rare elsewhere in GA-NC-SC)
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
Alternate
FLOWER:
Spring/Summer
Yellow
4-lobed calyx
4 petals
8 exserted stamens
Inferior ovary
FRUIT:
Spring/Summer
Capsule
TO LEARN MORE about this plant, look it up in a good book!
- Gardening with Native Plants of the South (Wasowski & Wasowski, 1994, 2020) p152
- Gardening with the Native Plants of Tennessee (Hunter, 2002) p153
- Guide to the Wildflowers of SC (Porcher & Rayner, 2001) p113
- Newcomb's Wildflower Guide (Newcomb, 1977) p134?
- Wildflowers of the Eastern United States (Duncan & Duncan, 1999) p056?
- Field Guide to the Wildflowers of Georgia (Chafin, 2016) p267
- Wildflowers of Tennessee (Carman, 2005) p152?
- Wildflowers of Tennessee, the Ohio Valley, and the Southern Appalachians (Horn, Cathcart, Hemmerly, & Duhl, 2005) p188?
- Wildflowers of the Southern Mountains (Smith, 1998) p108