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Home/Species/ Cat's-paw Ragwort

Packera antennariifolia

(Britt.) W.A. Weber & A. Love

Cat's-paw Ragwort

G4Apparently Secure Found in 5 roadless areas NatureServe Explorer →
G4Apparently SecureGlobal Rank
Identity
Unique IDELEMENT_GLOBAL.2.139928
Element CodePDAST8H050
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVascular Plant
Endemicendemic to a single nation
KingdomPlantae
PhylumAnthophyta
ClassDicotyledoneae
OrderAsterales
FamilyAsteraceae
GenusPackera
Synonyms
Senecio antennariifoliusBritt.
Other Common Names
Shale Barren Ragwort (EN) shale barren ragwort (EN)
Concept Reference
Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.
Conservation Status
Review Date1985-11-27
Change Date1985-11-27
Range Extent Comments
MD, PA, VA, WV.
Ecology & Habitat

Diagnostic Characteristics

Perennial, disk 7-12 mm wide, principal leaves remotely toothed, plants tomentose, basal leaves 4.0 dm long or less, Achenes hirtellous along the angles.

Habitat

This species grows in shale barrens or shale woodlands on steep, south facing, open sites with thin soil with little or no other vegetation.

Ecology

Sensetive to excessive erosion. High light intensity and low levels of competition are required by this species.

Reproduction

n=23.
Terrestrial Habitats
Bare rock/talus/scree
Other Nations (1)
United StatesNNR
ProvinceRankNative
MarylandS3Yes
West VirginiaS3Yes
VirginiaS3Yes
OhioSNRYes
PennsylvaniaS1Yes
Plant Characteristics
DurationPERENNIAL
Economic Value (Genus)No
Roadless Areas (5)
Virginia (4)
AreaForestAcres
JerkemtightGeorge Washington National Forest16,687
Northern MassanuttenGeorge Washington National Forest9,444
Patterson MountainJefferson National Forest4,865
Price MountainJefferson National Forest9,119
West Virginia (1)
AreaForestAcres
Middle MountainMonongahela National Forest19,020
References (14)
  1. Barkley, T.M. 1978. SENECIO. In: North America flora, Series II, Part 10. New York Botanical Garden, New York, NY.
  2. Britton, N. L., and A. Brown. 1898. An Illustrated Flora of the Northern United States, Canada, and the British Possessions. Charles Scribner's Sons, New York, NY. New Era Printing Co. Lancaster, PA.
  3. Britton, N. L. and A. Brown. 1913. An Illustrated Flora of the Northern United States and Canada. 3 vol. Dover Publications, Inc., N. Y. 2052 pp.
  4. Core, E. L. 1940. The shale barren flora of West Virginia. Proc. W. Va. Acad. Sci. 14:27-36.
  5. Core, E.L. 1946. Wild Flowers of the Appalachain Shale Barrens. Wild Flowers 22:13-18.
  6. Core, E. L. 1952. The ranges of some plants of the Appalachian shale barrens. Castanea 17:105-116.
  7. Fernald, M.L. 1950 Gray's Manual of Botany, 8th ed. American Book Company, New York. 1632 pp.
  8. Flora of North America Editorial Committee (FNA). 2006b. Flora of North America north of Mexico. Vol. 20. Magnoliophyta: Asteridae, part 7: Asteraceae, part 2. Oxford Univ. Press, New York. xxii + 666 pp.
  9. Gleason, H.A. 1952. The new Britton and Brown illustrated flora of the northeastern United States and adjacent Canada. 3 volumes. Hafner Press, New York. 1732 pp.
  10. Gleason, H.A., and A. Cronquist. 1991. Manual of vascular plants of northeastern United States and adjacent Canada. New York Botanical Garden, Bronx, New York. 910 pp.
  11. Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.
  12. Kartesz, J.T. 1999. A synonymized checklist and atlas with biological attributes for the vascular flora of the United States, Canada, and Greenland. First edition. In: Kartesz, J.T., and C.A. Meacham. Synthesis of the North American Flora, Version 1.0. North Carolina Botanical Garden, Chapel Hill, N.C.
  13. Strausbaugh, P.D. and E.L. Core. 1964. Flora of West Virginia, Series 65, No 3-2. West Virginia University Bulletin.
  14. Walck, J.L. 1987. Shale barren ragwort (<i>Senecio antennariifolius</i>, Asteraceae) in the Great Valley, Franklin County, Pennsylvania. Bartonia 53:13-14.