PLATYPHYLLA (G. Engelmann) J. G. Smith
graminea Michx. var. platyphylla G.Engelmann
HABIT: Perennial, to
150 cm tall, without rhizomes and tubers; flowering and fruiting July-September.
SIMILAR SPECIES: It
differs from S. graminea by its pedicels of mature pistillate flowers
being arched-recurving rather than spreading. Sterile specimens may be confused
with Alisma spp.
TOTAL RANGE: Florida
w. to e. Texas, n. to Okl., Mo., Ke., n. Georgia; disjunct populations in Ohio,
W.V. and Penn.; also in Central America.
STATE RANGE: One
pre-1970 record from Huron County.
1998-1999: Added, 2000 to present: Presumed Extirpated.
HABITAT: Emergent in
streams and lakes.
pollution; draining of wetlands.
Unknown, possibly good since it is not restricted to particular wetland
Collect mature fruiting specimens.
COMMENTS: The Ohio
population is disjunct; it is possible that this species could occur in other
parts of the state. It should be sought in suitable habitats throughout Ohio.
Flora of North America Editorial Committee, eds. 1993+.
Flora of North America North of Mexico. 4+ vols. New York and Oxford. (The Alismataceae
is treated in Volume 22.)
Ohio Department of Natural Resources
Division of Natural
Areas and Preserves
Created: 4/1998 Richard