FAMILY: Umbelliferae (Apiaceae)
HABIT: Erect perennial herb to 12 dm.; flowering June, July;
SIMILAR SPECIES: Perideridia americana slightly
resembles, and may be confused with Thaspium barbinode. P. americana has
white flower petals and laterally-flattened, wingless fruits, whereas T.
barbinode has yellow flower petals and dorsally-flattened, narrowly-winged
fruits. Non-flowering material cannot be identified with certainty.
TOTAL RANGE: OH to sw. MI and IL, s. to TN, AR, and
se. KS; local throughout range.
STATE RANGE: PICKAWAY CO.: wet woods 2 mi. se. of Whisler, Salt
Creek Twp., 11 June 1950, F. Bartley (BHO, OS). Roberts and Cooperrider
(1982, p. 61) state that this species was "reported in 1840 from Madison
County prairies". The basis for this reference is not known.
STATE STATUS: 1980-1983: Endangered, 1984 to present:
HABITAT: Moist to wet, open situations in woodlands and
prairies. Often on limestone outcrops.
HAZARDS: Unknown, but perhaps overshading by woody species
as a result of succession.
RECOVERY POTENTIAL: Unknown, but probably poor.
INVENTORY GUIDELINES: Mature flowering or fruiting material
is needed for positive identification.
COMMENTS: Giannasi and Chuang (1976) show the range of this
species to include much of south-central Ohio. It should be sought there in
areas of appropriate habitat. Recent searches have failed to relocate the
reported population. However, this species is easily overlooked or
misidentified. It still may be extant in southern Ohio.
Chuang, T.I. and L. Constance. 1969. A systematic study of Perideridia
(Umbelliferae-Apioideae). Univ. Calif. Public. Bot. 55: 1-79.
Cooperrider, T.S. 1995. The
Dicotyledoneae of Ohio. Part 2. Linaceae through Campanulaceae. Ohio State
Univ. Press, Columbus, OH. 656 pp.
Giannasi, D.E. and T.I. Chuang. 1976. Flavenoid systematics
of the genus Perideridia (Umbelliferae). Brittonia 28: 177-199.
Roberts, M.L. and T.S. Cooperrider. 1982. Dicotyledons. In:
Cooperrider, T.S. (ed.). Endangered and threatened plants of Ohio. Ohio Biol.
Surv. Biol. Nots No. 16: 48-84.
Ohio Department of Natural Resources
Division of Natural Areas and Preserves
Created: 1/1983 James F. Burns
Database Code: SPL3.503