HERMAPHRODITA (L.) Rusby
HABIT: Herbaceous perennial, 1-3 m., flowering
SPECIES: This species is oftentimes
confused with Napaea dioica, a plant very similar in size, habit, leaf shape
and general appearance. This has led to
confusion and misinterpretation in nomenclature and distributions of both of
these species. Sida has perfect
flowers and Napaea is dioecious.
RANGE: On the eastern side of the
Appalachians, its natural distribution is apparently confined to the Potomac
and Susquehana River basins in s. PA, D.C., MD, and n. VA. West of the Appalachians, it is confined to
the Kanawha River basin in WV, and the Ohio River basin in OH and KY. There are nw. OH records that Iltis (1963)
believes are adventive, but they may be native. In addition, there are three records from TN.
RANGE: There are post-1960 records from
Clermont, Gallia, Meigs, Lawrence, Scioto and Williams counties. There is a 1940 record from Adams County,
and an 1898 collection from Defiance County.
STATUS: 1980 to present: Potentially
HABITAT: Open to semi-open disturbed situations in
sandy soils along rivers. All of the
southern Ohio plants grow either along or very near the bank of the Ohio
River. The Williams County site is near
HAZARDS: Severe flooding may be a hazard for
low-lying populations. On the Potomac
River, one population was eliminated and another was severely cut back after
flooding resulting from Hurricane Agnes in 1972 (Thomas, 1979).
POTENTIAL: Unknown. Thomas (1979) reports a steady decrease in
the number of known populations in the Atlantic watershed. On the other hand, it may be somewhat
adventive in areas where it has been planted.
GUIDELINES: Good; the species seems to
thrive in the naturally disturbed habitat along the Ohio River.
COMMENTS: There is a marked decrease in the number of
known populations east of the Appalachians since the beginning of recorded observations
of this plant. In Ohio, future searches
should be concentrated along the Ohio River, and new Ohio River county records
would be very useful.
I.D. 1957. Studies in Sida (Malvaceae). Contrib. Gray Herb. 180.
Cooperrider, T.S. 1995. The
Dicotyledoneae of Ohio. Part 2. Linaceae through Campanulaceae. Ohio State
Univ. Press, Columbus, OH. 656 pp.
R., and M.E. Medley. 1981. Notes on the flora of Kentucky: New and
interesting plants in Kentucky. Rhodora
H.H. 1963. Napaea dioica
(Malvaceae): Whence came the type? Am.
Midl. Nat. 70: 90-109.
L.K., Jr. 1979. Distribution and ecology of Sida
hermaphrodita, a rare plant species.
Bartonia 46: 51-59.
Division of Natural Areas and Preserves
Ohio Department of Natural Resources
Created: 12/1981 David Spooner