OF THE CAROLINAS & GEORGIA

Spermatophytes (seed plants): Angiosperms (flowering plants): Eudicots: Core Eudicots: Rosids: Fabids: Malpighiales

WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Podostemum ceratophyllum   FAMILY Podostemaceae   Go to FSUS key



SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Podostemum ceratophyllum   FAMILY Podostemaceae

SYNONYMOUS WITH Floristic Synthesis of North America. BONAP (Kartesz, 2021)

Podostemum ceratophyllum

SYNONYMOUS WITH Flora of North America

Podostemum ceratophyllum

SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 090-01-001:

Podostemum ceratophyllum   FAMILY Podostemaceae

INCLUDING Manual of the Southeastern Flora (Small, 1933, 1938)

Podostemon abrotanoides

INCLUDING & ORTHOGRAPHIC VARIANT Manual of the Southeastern Flora (Small, 1933, 1938)

Podostemon ceratophyllum

 

COMMON NAME:
Riverweed, Threadfoot, Riffleweed


         To see larger pictures, click or hover over the thumbnails.

image of Podostemum ceratophyllum, Riverweed, Threadfoot, Riffleweed

JK Marlow    jkm180408_1131

April    McCormick County    SC

Parks Mill

A highly unusual, alga-like aquatic vascular plant w narrow dissected leaves, per Wildflowers & Plant Communities of the Southern Appalachian Mountains and Piedmont (Spira, 2011).

image of Podostemum ceratophyllum, Riverweed, Threadfoot, Riffleweed

JK Marlow    jkm160628_126

June    Polk County    NC

Pearson's Falls

Small disk-like holdfasts anchor it to rocks & ledges of fast-moving streams, per Wildflowers & Plant Communities of the Southern Appalachian Mountains and Piedmont (Spira, 2011).

image of Podostemum ceratophyllum, Riverweed, Threadfoot, Riffleweed

Tim Spira    tpspceratophyllum1

June        


click here to see other plants that look similar to this COMPARE aquatic plants

 

 

WEAKLEY'S FLORA OF THE SOUTHEASTERN US (4/24/22):
Podostemum ceratophyllum   FAMILY Podostemaceae

SYNONYMOUS WITH PLANTS NATIONAL DATABASE:
Podostemum ceratophyllum   FAMILY Podostemaceae

SYNONYMOUS WITH Floristic Synthesis of North America. BONAP (Kartesz, 2021)
Podostemum ceratophyllum

SYNONYMOUS WITH Flora of North America
Podostemum ceratophyllum

SYNONYMOUS WITH VASCULAR FLORA OF THE CAROLINAS (Radford, Ahles, & Bell, 1968) 090-01-001:
Podostemum ceratophyllum   FAMILY Podostemaceae

INCLUDING Manual of the Southeastern Flora (Small, 1933, 1938)
Podostemon abrotanoides

INCLUDING & ORTHOGRAPHIC VARIANT Manual of the Southeastern Flora (Small, 1933, 1938)
Podostemon ceratophyllum

 

Find by SCIENTIFIC NAME:

1972

Submersed aquatic (rooted); Forb
Perennial

Habitat: Attached to rocks and dams in rapidly or slowly flowing water, per Weakley's Flora

Native to the Carolinas & Georgia

Common (rare in Coastal Plain)

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:
Simple: dissected into linear or filiform segments
Alternate

FLOWER:
Spring/Summer
Petals absent
2 stamens & 2 minute staminodia
Bisexual

Flowers in leaf axils

FRUIT:
Spring/Summer
Red
Capsule

 

TO LEARN MORE about this plant, look it up in a good book!



 


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