POLYCARPON TETRAPHYLLUM (CARYOPHYLLACEAE) NEW TO THE FLORA OF LOUISIANA

2010·0.45 MB·English

by  Charles M Allen

POLYCARPON TETRAPHYLLUM
(CARYOPHYLLACEAE)
NEW
TO THE FLORA OF LOUISIANA
Charles M. Allen, Jarrod Grandon, Krisztian Megyeri, and Brad Waguespack
Colorado State University
Fort Polk Station 1645 23rd St
Fort Polk, Louisiana 71459, U.S.A
mm
member
of the Caryophyllaceae. characterized by mostly whorled leaves, keeled sepals 1.5-2. 5
It is
mm &
US
and The
long, stipules 1.8-2. 8 long (Thieret Rabeler 2005). other species of Polycarpon in the is
mm
California manyseed depressum Nutt.) with opposite not whorled leaves, sepals 1-1.5 long, and
(P. flat
mm
stipules 0.4-1. 2 long. Four-leaved manyseed a native of the Mediterranean region of southern Europe
is
and has been introduced into Ala., Calif., Fla., Ga.. Ore., S.C., and Tex. in the United States and also British
&
USDA NRCS
Columbia (Thieret Rabeler 2005; 2010). There are also historic records from Massachusetts
(USDA
and Pennsylvania. not Louisiana by Thomas and Allen (1996) nor in the Plants database
is listed for
It
NRCS
2010) so our collection is apparently the first for the state.
REFERENCES
Thieret, J.W. and R.K. Rabeler. 2005. Polycarpon. In: Flora of North America Committee, eds. Flora of North America
New
north of Mexico. Vol. Oxford University Press, York. Pp. 25-26.
5.
CM. Acanthaceae-
Thomas, R.D. and Allen. 1996. Atlas of the vascular flora of Louisiana, Vol. 2: Dicotyledons
Euphorbiaceae. Louisiana Department of Wildlife and Fisheries, Baton Rouge, LA.
USDA, NRCS. 2010. The PLANTS database (http-y/plants.usda.gov/plants). National Plant Data Center, Baton
Rouge, LA 70874-4490.