OF THE CAROLINAS & GEORGIA

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


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.

image of Myriophyllum heterophyllum, Southern Water-milfoil, Variable-leaf Water-milfoil

Bruce A. Sorrie    bas_m_heterophyllum1

May    Moore County    NC

image of Myriophyllum heterophyllum, Southern Water-milfoil, Variable-leaf Water-milfoil

Bruce A. Sorrie    bas_m_heterophyllum3

May    Moore County    NC

image of Myriophyllum heterophyllum, Southern Water-milfoil, Variable-leaf Water-milfoil

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

 

Find by SCIENTIFIC NAME:

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

map
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!



 


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