Proserpinaca palustris var. crebra Fernald & Griscom
Family: Haloragaceae
common mermaid-weed, marsh mermaid-weed
[Proserpinaca palustris var. amblyogona L.]
Proserpinaca palustris var. crebra image
Robert H. Read  
Etymology: Proserpinaca: Pliny's name of Polygonum meaning "pertaining to Proserpine"
Plants: perennial, semi-aquatic to aquatic, often found in clones; stems with many short, dark spikes
Leaves: alternate, submersed leaves oval to oblong and pinnately dissected
Flowers: purplish to greenish, 3-parted, small, sepals triangular; solitary to 3 together, stalkless in the axils of the emersed leaves
Fruits: 1/10" wide, nut-like, not winged, sides nearly flat, 3-seeded
Habitat: swamps, marshes, shores, ephemeral woodland ponds
Conservation Status: Native
Proserpinaca palustris var. crebra image
Proserpinaca palustris var. crebra image
Proserpinaca palustris var. crebra image
Proserpinaca palustris var. crebra image
Proserpinaca palustris var. crebra image
Proserpinaca palustris var. crebra image
Proserpinaca palustris var. crebra image
Proserpinaca palustris var. crebra image
Proserpinaca palustris var. crebra image
Proserpinaca palustris var. crebra image
Proserpinaca palustris var. crebra image
Proserpinaca palustris var. crebra image
Proserpinaca palustris var. crebra image
Proserpinaca palustris var. crebra image
Proserpinaca palustris var. crebra image
Robert H. Read  
Proserpinaca palustris var. crebra image
Proserpinaca palustris var. crebra image
Proserpinaca palustris var. crebra image