HABIT: Decumbent to ascending, much-branched, herbaceous
annual to short-lived perennial, 2-5 dm.; flowering late May-September;
fruiting July- October.
SIMILAR SPECIES: P. paradoxa is easily distinguished
from other pinnate-leaved cinquefoils by the much-branched, many flowered,
leafy inflorescence, the coarsely toothed leaflets and the presence of a large
corky thickening on the inner ridge of the achenes.
TOTAL RANGE: Ont. to B.C., s. to w. NY, ne. PA, OH, IL, MO,
LA, KS, NM, & WA.
STATE RANGE: This species apparently is restricted
in Ohio to those counties along Lake Erie. There are post-1960 collections from
Ashtabula, Erie, Lucas, and Ottawa counties, and pre-1960 specimens from Lake
STATE STATUS: 1980 to present: Threatened.
HABITAT: Moist or wet soil in full sun; riverbanks, lake and
pond shores, sandbars, low fields.
HAZARDS: Drying of the habitat, sudden alterations in water
level, soil compaction, overshading by woody species through succession.
RECOVERY POTENTIAL: Unknown; possibly very good due to its
somewhat weedy nature. It is known from fairly disturbed sites.
INVENTORY GUIDELINES: Collect mature fruiting or flowering
COMMENTS: P. paradoxa should be sought throughout the
Lake Erie basin. It is probably more frequent than the records indicate,
possibly overlooked because of its generally nondescript appearance. Also, size
of populations fluctuates markedly from year to year.
authors merge the genera Fragaria and Potentilla. Asker (1971)
discusses this taxonomic situation.
Asker, S. 1971. Some viewpoints on Fragaria X Potentilla
intergeneric hybridization. Hereditas 67: 181-190.
Ohio Department of Natural Resources
Division of Natural Areas and Preserves
Created: 12/1981 David P. Emmitt, Allison W. Cusick
Database Code: SPLC.854