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Most habitat and range descriptions were obtained from Weakley's Flora.
Your search found 34 taxa in the family Onagraceae, Evening Primrose family, as understood by Weakley's Flora.

Common Name:
Wingstem Water-primrose, Wingleaf Primrose-willow
Weakley's Flora: (11/30/12) Ludwigia decurrens FAMILY: Onagraceae
SYNONYMOUS WITH PLANTS National Database: Ludwigia decurrens FAMILY: Onagraceae
SYNONYMOUS WITH Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968): Ludwigia decurrens 137-01-001 FAMILY: Onagraceae
Look for it in swamp forests, ditches
Common
Native to the Carolinas & Georgia

Common Name:
Water-willow, Primrose Willow, Anglestem Primrose-willow
Weakley's Flora: (11/30/12) Ludwigia leptocarpa FAMILY: Onagraceae
SYNONYMOUS WITH PLANTS National Database: Ludwigia leptocarpa FAMILY: Onagraceae
SYNONYMOUS WITH Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968): Ludwigia leptocarpa 137-01-003 FAMILY: Onagraceae
Look for it on riverbanks, in marshes, & ditches
Common in Coastal Plain (rare in Piedmont & Mountains)
Native to the Carolinas & Georgia

Common Name:
Showy Water-primrose, Large-flower Water-primrose
Weakley's Flora: (2/8/20) Ludwigia grandiflora FAMILY: Onagraceae
(?) SYNONYMOUS WITH PLANTS National Database: Ludwigia grandiflora ssp. grandiflora FAMILY: Onagraceae
INCLUDED WITHIN Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968): Ludwigia uruguayensis 137-01-004? FAMILY: Onagraceae
Look for it in ponds, lakes, sluggish waters of ditches or streams
Uncommon in Coastal Plain, rare in Piedmont
Non-native

Common Name:
Common Water-primrose
Weakley's Flora: (2/8/20) Ludwigia hexapetala FAMILY: Onagraceae
(?) SYNONYMOUS WITH PLANTS National Database: Ludwigia grandiflora ssp. hexapetala FAMILY: Onagraceae
INCLUDED WITHIN Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968): Ludwigia uruguayensis 137-01-004? FAMILY: Onagraceae
Look for it in ponds, lakes, sluggish waters of ditches or streams
Uncommon in Coastal Plain of NC-SC, rare elsewhere in GA-NC-SC
Non-native

Common Name:
Savanna Seedbox, Slender Seedbox
Weakley's Flora: (11/30/12) Ludwigia virgata FAMILY: Onagraceae
SYNONYMOUS WITH PLANTS National Database: Ludwigia virgata FAMILY: Onagraceae
SYNONYMOUS WITH Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968): Ludwigia virgata 137-01-006 FAMILY: Onagraceae
Look for it in wet savannas
Common
Native to the Carolinas & Georgia

Common Name:
Harper's Seedbox, Seaside Seedbox
Weakley's Flora: (5/21/15) Ludwigia maritima FAMILY: Onagraceae
SYNONYMOUS WITH PLANTS National Database: Ludwigia maritima FAMILY: Onagraceae
SYNONYMOUS WITH Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968): Ludwigia maritima 137-01-007 FAMILY: Onagraceae
Look for it in pine savannas, pine flatwoods, bogs
Common
Native to the Carolinas & Georgia

Common Name:
Rafinesque's Seedbox
Weakley's Flora: (11/30/12) Ludwigia hirtella FAMILY: Onagraceae
SYNONYMOUS WITH PLANTS National Database: Ludwigia hirtella FAMILY: Onagraceae
SYNONYMOUS WITH Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968): Ludwigia hirtella 137-01-008 FAMILY: Onagraceae
Look for it in savannas, rarely in mountain bogs
Common in Coastal Plain (rare in Piedmont & Mountains)
Native to the Carolinas & Georgia

Common Name:
Alternate-leaf Seedbox, Bushy Seedbox
Weakley's Flora: (11/30/12) Ludwigia alternifolia FAMILY: Onagraceae
SYNONYMOUS WITH PLANTS National Database: Ludwigia alternifolia FAMILY: Onagraceae
SYNONYMOUS WITH Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968): Ludwigia alternifolia 137-01-009 FAMILY: Onagraceae
Look for it in ditches, marshes, open wet places, disturbed wet places
Common
Native to the Carolinas & Georgia

Common Name:
Shrubby Seedbox
Weakley's Flora: (11/30/12) Ludwigia suffruticosa FAMILY: Onagraceae
SYNONYMOUS WITH PLANTS National Database: Ludwigia suffruticosa FAMILY: Onagraceae
SYNONYMOUS WITH Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968): Ludwigia suffruticosa 137-01-014 FAMILY: Onagraceae
Look for it in periodically to seasonally flooded portions of limesink ponds (dolines) and clay-based Carolina bays
Common (rare in NC)
Native to the Carolinas & Georgia

Common Name:
Pondshore Seedbox, piedmont primrose-willow, Needleleaf Ludwigia
Weakley's Flora: (10/20/20) Ludwigia arcuata FAMILY: Onagraceae
SYNONYMOUS WITH PLANTS National Database: Ludwigia arcuata FAMILY: Onagraceae
SYNONYMOUS WITH Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968): Ludwigia arcuata 137-01-019 FAMILY: Onagraceae
Look for it in marshes or submerged in water of natural Coastal Plain ponds
Uncommon
Native to South Carolina & Georgia

Common Name: Long Beach Seedbox, Coastal Plain Water-purslane
Weakley's Flora: (11/30/12) Ludwigia brevipes FAMILY: Onagraceae
SYNONYMOUS WITH PLANTS National Database: Ludwigia brevipes FAMILY: Onagraceae
SYNONYMOUS WITH Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968): Ludwigia brevipes 137-01-020 FAMILY: Onagraceae
Look for it on pondshores, blackwater rivers, interdunal swales, borrow ponds, ditches, impoundments, marshes
Rare
Native to the Carolinas & Georgia

Common Name:
Creeping Seedbox
Weakley's Flora: (5/21/15) Ludwigia repens FAMILY: Onagraceae
SYNONYMOUS WITH PLANTS National Database: Ludwigia repens FAMILY: Onagraceae
SYNONYMOUS WITH Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968): Ludwigia repens 137-01-021 FAMILY: Onagraceae
Look for it in ditches, pools, and streams
Uncommon in Coastal Plain, rare in Piedmont
Native to the Carolinas & Georgia

Common Name:
Common Water-purslane, Marsh Purslane, Marsh Seedbox
Weakley's Flora: (11/30/12) Ludwigia palustris FAMILY: Onagraceae
SYNONYMOUS WITH PLANTS National Database: Ludwigia palustris FAMILY: Onagraceae
SYNONYMOUS WITH Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968): Ludwigia palustris 137-01-023 FAMILY: Onagraceae
Look for it moist to wet disturbed areas
Common
Native to the Carolinas & Georgia

Common Name:
Common Evening Primrose
Weakley's Flora: (11/30/12) Oenothera biennis FAMILY: Onagraceae
SYNONYMOUS WITH PLANTS National Database: Oenothera biennis FAMILY: Onagraceae
INCLUDED WITHIN Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968): Oenothera biennis 137-02-001 FAMILY: Onagraceae
Look for it in fields, pastures, roadsides, disturbed areas
Common
Native to the Carolinas & Georgia

Common Name:
Beach Evening Primrose, Drummond's Evening Primrose
Weakley's Flora: (2/8/20) Oenothera drummondii FAMILY: Onagraceae
INCLUDED WITHIN PLANTS National Database: Oenothera drummondii FAMILY: Onagraceae
INCLUDED WITHIN Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968): Oenothera drummondii 137-02-003 FAMILY: Onagraceae
Look for it on sandy ocean beaches, disturbed areas
Rare, perhaps only introduced or adventive from the Gulf Coast
Native: Gulf state(s); occurrences in FL-SC-NC are also plausible as native

Common Name:
Dunes Evening Primrose, Seabeach Evening Primrose, Spreading Evening Primrose
Weakley's Flora: (11/30/12) Oenothera humifusa FAMILY: Onagraceae
SYNONYMOUS WITH PLANTS National Database: Oenothera humifusa FAMILY: Onagraceae
SYNONYMOUS WITH Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968): Oenothera humifusa 137-02-004 FAMILY: Onagraceae
Look for it on coastal sand dunes
Common
Native to the Carolinas & Georgia

Common Name:
Cutleaf Evening Primrose
Weakley's Flora: (11/30/12) Oenothera laciniata FAMILY: Onagraceae
SYNONYMOUS WITH PLANTS National Database: Oenothera laciniata FAMILY: Onagraceae
SYNONYMOUS WITH Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968): Oenothera laciniata var. laciniata 137-02-006a FAMILY: Onagraceae
Look for it in disturbed areas
Common
Native to the Carolinas & Georgia

Common Name:
Showy Evening Primrose, White Evening Primrose, Pink-ladies, Pink Evening Primrose
Weakley's Flora: (11/30/12) Oenothera speciosa FAMILY: Onagraceae
SYNONYMOUS WITH PLANTS National Database: Oenothera speciosa FAMILY: Onagraceae
SYNONYMOUS WITH Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968): Oenothera speciosa 137-02-007 FAMILY: Onagraceae
Look for it on roadsides & in fields, also cultivated as an ornamental
Common (rare in Mountains)
Native: west of the Carolinas & Georgia

Common Name: Little Sundrops, Small Sundrops
Weakley's Flora: (11/30/12) Oenothera perennis FAMILY: Onagraceae
SYNONYMOUS WITH PLANTS National Database: Oenothera perennis FAMILY: Onagraceae
SYNONYMOUS WITH Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968): Oenothera perennis 137-02-008 FAMILY: Onagraceae
Look for it in bogs, sphagnous seeps, moist fields
Rare in NC-SC
Native to the Carolinas

Common Name:
Southern Sundrops, Narrowleaf Sundrops
Weakley's Flora: (11/30/12) Oenothera fruticosa + FAMILY: Onagraceae
INCLUDED WITHIN PLANTS National Database: Oenothera fruticosa ssp. fruticosa FAMILY: Onagraceae
INCLUDED WITHIN Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968): Oenothera fruticosa 137-02-009 FAMILY: Onagraceae
Native to the Carolinas & Georgia

Common Name:
Riverbank Evening Primrose, Riverbank Sundrops
Weakley's Flora: (11/30/12) Oenothera riparia FAMILY: Onagraceae
(?) INCLUDED WITHIN PLANTS National Database: Oenothera fruticosa ssp. glauca FAMILY: Onagraceae
INCLUDED WITHIN Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968): Oenothera fruticosa 137-02-009? FAMILY: Onagraceae
Look for it in tidal marshes
Rare
Native to the Carolinas

Common Name:
Northern Sundrops, Appalachian Sundrops
Weakley's Flora: (11/30/12) Oenothera tetragona + FAMILY: Onagraceae
INCLUDED WITHIN PLANTS National Database: Oenothera fruticosa + FAMILY: Onagraceae
INCLUDED WITHIN Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968): Oenothera tetragona 137-02-010 FAMILY: Onagraceae
Look for it in dry (or moist, depending on variety) forests & woodlands, roadsides, or (depending on variety) dry sandy soils
Common
Native to the Carolinas & Georgia

Common Name: Threadleaf Sundrops, Flaxleaf Sundrops
Weakley's Flora: (11/30/12) Oenothera linifolia FAMILY: Onagraceae
SYNONYMOUS WITH PLANTS National Database: Oenothera linifolia FAMILY: Onagraceae
SYNONYMOUS WITH Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968): Oenothera linifolia 137-02-011x FAMILY: Onagraceae
Rare
Native to the Carolinas & Georgia?

Common Name: Shale-barren Evening Primrose, Shale Evening Primrose
Weakley's Flora: (11/30/12) Oenothera argillicola FAMILY: Onagraceae
SYNONYMOUS WITH PLANTS National Database: Oenothera argillicola FAMILY: Onagraceae
Look for it in shale barrens and woodlands
Uncommon
Native north of the Carolinas

Common Name:
Stemless Evening Primrose
Weakley's Flora: (11/30/12) Oenothera triloba FAMILY: Onagraceae
SYNONYMOUS WITH PLANTS National Database: Oenothera triloba FAMILY: Onagraceae
Look for it in limestone glades (in GA), blackbelt prairies
Rare
Native to Georgia

Common Name: Narrowleaf Willowherb, Bog Willowherb, American Marsh Willowherb
Weakley's Flora: (5/21/15) Epilobium leptophyllum FAMILY: Onagraceae
SYNONYMOUS WITH PLANTS National Database: Epilobium leptophyllum FAMILY: Onagraceae
SYNONYMOUS WITH Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968): Epilobium leptophyllum 137-03-001 FAMILY: Onagraceae
Look for it in bogs, fens, seepages, and boggy meadows
Rare
Native to North Carolina

Common Name:
Great Willowherb, Fireweed
Weakley's Flora: (10/20/20) Chamaenerion angustifolium ssp. circumvagum FAMILY: Onagraceae
SYNONYMOUS WITH PLANTS National Database: Chamerion angustifolium ssp. circumvagum FAMILY: Onagraceae
INCLUDED WITHIN Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968): Epilobium angustifolium 137-03-002 FAMILY: Onagraceae
Look for it on grassy balds, roadsides, montane fields, burned areas, disturbed areas
Rare in NC
Native to North Carolina

Common Name:
Purpleleaf Willowherb, Bronze Willowherb, Eastern Willowherb
Weakley's Flora: (5/21/15) Epilobium coloratum FAMILY: Onagraceae
SYNONYMOUS WITH PLANTS National Database: Epilobium coloratum FAMILY: Onagraceae
SYNONYMOUS WITH Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968): Epilobium coloratum 137-03-003 FAMILY: Onagraceae
Look for it in seepages, moist open places
Common in NC Mtns, uncommon in SC Mtns & NC Pdmt, rare elsewhere
Native to the Carolinas & Georgia

Common Name: Fringed Willowherb, American Willowherb
Weakley's Flora: (5/21/15) Epilobium ciliatum ssp. ciliatum FAMILY: Onagraceae
SYNONYMOUS WITH PLANTS National Database: Epilobium ciliatum ssp. ciliatum FAMILY: Onagraceae
SYNONYMOUS WITH Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968): Epilobium ciliatum 137-03-004 FAMILY: Onagraceae
Look for it in bogs, seeps, disturbed wet places (such as moist edges of logging roads)
Rare
Native to North Carolina

Common Name:
Threadstalk Gaura, Slenderstalk Beeblossom
Weakley's Flora: (11/30/12) Oenothera filipes FAMILY: Onagraceae
SYNONYMOUS WITH PLANTS National Database: Gaura filipes FAMILY: Onagraceae
SYNONYMOUS WITH Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968): Gaura filipes 137-04-001 FAMILY: Onagraceae
Look for it in sandy fields, disturbed areas, and clearings
Common
Native to South Carolina & Georgia

Common Name:
Biennial Gaura, Northeastern Gaura, Morning Honeysuckle, Biennial Beeblossom
Weakley's Flora: (11/30/12) Oenothera gaura FAMILY: Onagraceae
SYNONYMOUS WITH PLANTS National Database: Gaura biennis FAMILY: Onagraceae
SYNONYMOUS WITH Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968): Gaura biennis 137-04-004 FAMILY: Onagraceae
Look for it on roadsides, woodlands, streambanks, fields, disturbed areas
Common
Native to the Carolinas & Georgia

Common Name:
Southeastern Gaura, Southern Beeblossom
Weakley's Flora: (5/21/15) Oenothera simulans FAMILY: Onagraceae
SYNONYMOUS WITH PLANTS National Database: Gaura angustifolia FAMILY: Onagraceae
SYNONYMOUS WITH Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968): Gaura angustifolia 137-04-005 FAMILY: Onagraceae
Look for it in open woodlands, sandy fields, roadsides, primarily in the outer Coastal Plain
Common
Native to the Carolinas & Georgia

Common Name:
Canada Enchanter's Nightshade
Weakley's Flora: (5/21/15) Circaea canadensis FAMILY: Onagraceae
SYNONYMOUS WITH PLANTS National Database: Circaea lutetiana ssp. canadensis FAMILY: Onagraceae
SYNONYMOUS WITH Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968): Circaea lutetiana ssp. canadensis 137-05-001 FAMILY: Onagraceae
Look for it in mesic, nutrient-rich forests
Common in NC & in GA Mountains (uncommon to rare southward)
Native to the Carolinas & Georgia

Common Name:
Alpine Enchanter's Nightshade, Smaller Enchanter's Nightshade
Weakley's Flora: (5/21/15) Circaea alpina ssp. alpina FAMILY: Onagraceae
SYNONYMOUS WITH PLANTS National Database: Circaea alpina ssp. alpina FAMILY: Onagraceae
INCLUDED WITHIN Vascular Flora of the Carolinas (Radford, Ahles, & Bell, 1968): Circaea alpina 137-05-002 FAMILY: Onagraceae
Look for it in moist organic soil at high elevations (esp in spruce-fir and northern hardwood forests), rocky or gravelly seepages, in spray behind waterfalls, at dripping cliff bases
Uncommon
Native to North Carolina
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