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.
)
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
Native to the Carolinas & Georgia
Common in Coastal Plain (rare elsewhere in GA-NC-SC)
Habitat: Ditches, slow-moving waters of rivers and streams, pools, ponds, springs, per Weakley's Flora
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:
Leaves well-developed: pinnately divided with filiform segments
Submersed leaves whorled or pseudo-whorled. Bracts of emersed shoots different
FLOWER:
Spring/Summer/Fall
Reddish
Usually bisexual & staminate in the same inflorescence
4 sepals
4 petals
4-8 stamens
Inferior ovary
Flowers in spikes
FRUIT:
Spring/Summer/Fall?
Dull red
TO LEARN MORE about this plant, look it up in a good book!