Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Saxifragales
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Myriophyllum heterophyllum
FAMILY
Haloragaceae
Go to FSUS key
Dig deeper at SERNEC, a consortium of southeastern herbaria.
Check out EDDMapS.org to see where this has been reported.
Learn more about Southern Water-milfoil from the Vascular Plants of North Carolina.
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Myriophyllum heterophyllum
FAMILY
Haloragaceae
SYNONYMOUS WITH Flora of North America
Myriophyllum heterophyllum
SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 138-02-004:
Myriophyllum heterophyllum FAMILY Haloragaceae
SYNONYMOUS WITH Manual of the Southeastern Flora (Small, 1933, 1938)
Myriophyllum heterophyllum
COMMON NAME:
Southern Water-milfoil, Variable-leaf Water-milfoil
To see larger pictures, click or hover over the thumbnails.
)
USDA / Selected Weeds of the US. 1970 swus_page_275
)
Bruce A. Sorrie bas_m_heterophyllum1
May Moore County NC
)
Bruce A. Sorrie bas_m_heterophyllum3
May Moore County NC
)
Bruce A. Sorrie bas_m_heterophyllum5
May Moore County NC
Flowers/fruits (subtended by bracts) in erect spikes emersed from water, per Weakley's Flora (2015).
WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Myriophyllum heterophyllum
FAMILY
Haloragaceae
SYNONYMOUS WITH
PLANTS NATIONAL DATABASE:
Myriophyllum heterophyllum
FAMILY
Haloragaceae
SYNONYMOUS WITH
Flora of North America
Myriophyllum heterophyllum
SYNONYMOUS WITH
VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 138-02-004:
Myriophyllum heterophyllum
FAMILY
Haloragaceae
SYNONYMOUS WITH
Manual of the Southeastern Flora (Small, 1933, 1938)
Myriophyllum heterophyllum
4043
Submersed aquatic w flowers, fruits & small leaves above the surface (rooted); Forb
Perennial
Habitat: Ditches, slow-moving waters of rivers and streams, pools, ponds, springs, per Weakley's Flora
Native to the Carolinas & Georgia
Common in Coastal Plain (rare elsewhere in GA-NC-SC)
CLICK HERE to see a map, notes, and images from Weakley's Flora of the Southeastern US.
LEAVES:
Leaves well-developed: pinnately divided with filiform segments
Submersed leaves whorled or pseudo-whorled. Bracts of emersed shoots different
FLOWER:
Spring/Summer/Fall
Reddish
4 sepals
4 petals
4-8 stamens
Inferior ovary
Usually bisexual & staminate in the same inflorescence
Flowers in spikes
FRUIT:
Spring/Summer/Fall?
Dull red
TO LEARN MORE about this plant, look it up in a good book!
- Field Guide to Aquatic Plants of Alabama (Lovell, 2007) p44
- Field Guide to the Rare Plants of Georgia (Chafin, 2007) p233
- Field Guide to the Wildflowers of Georgia (Chafin, 2016) p392
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".
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