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Home/Species/ Congdon's Woolly-sunflower

Eriophyllum congdonii

Brandeg.

Congdon's Woolly-sunflower

G2Imperiled Found in 3 roadless areas NatureServe Explorer →
G2ImperiledGlobal Rank
HighThreat Impact
Identity
Unique IDELEMENT_GLOBAL.2.158068
Element CodePDAST3N030
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVascular Plant
Endemicendemic to a single state or province
KingdomPlantae
PhylumAnthophyta
ClassDicotyledoneae
OrderAsterales
FamilyAsteraceae
GenusEriophyllum
Synonyms
Eriophyllum nubigenum var. congdonii(Brandeg.) Constance
Other Common Names
Congdon's woolly sunflower (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
Rank MethodLegacy Rank calculation - Excel v3.1x
Review Date2016-05-31
Change Date1984-06-26
Edition Date2016-05-31
Edition AuthorsGries, D., and M. Martinez (1999), rev. Bittman and Treher (2016)
Threat ImpactHigh
Range Extent100-250 square km (about 40-100 square miles)
Number of Occurrences6 - 20
Rank Reasons
California endemic known from 15 extant occurrences. Threatened by mining, logging, herbicides and trail maintenance. Sites are either owned by National Park Service or U.S. Forest Service.
Range Extent Comments
California endemic found in Mariposa County (Skinner, 1997).
Occurrences Comments
Known from 15 extant occurrences, nine of which are ranked as in excellent or good condition (California Department of Fish and Game, 2016).
Threat Impact Comments
Trail maintenance, mining, logging, and herbicide use in reforestation sites where some populations are found constitute threats to this species (California Department of Fish and Game, 1997).
Ecology & Habitat

Habitat

Chaparral, cismontane woodland, lower montane coniferous forest (Skinner, 1997).
Terrestrial Habitats
Forest/WoodlandShrubland/chaparral
Other Nations (1)
United StatesN2
ProvinceRankNative
CaliforniaS2Yes
Threat Assessments
ThreatScopeSeverityTiming
2 - Agriculture & aquacultureRestricted (11-30%)UnknownHigh (continuing)
3 - Energy production & miningRestricted (11-30%)Extreme - moderateHigh (continuing)
4 - Transportation & service corridorsRestricted (11-30%)UnknownHigh (continuing)
4.1 - Roads & railroadsRestricted (11-30%)UnknownHigh (continuing)

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Plant Characteristics
DurationANNUAL
Economic Value (Genus)No
Roadless Areas (3)
California (3)
AreaForestAcres
Devil GulchSierra National Forest30,490
Ferguson RidgeSierra National Forest6,104
Trumbull PeakStanislaus National Forest6,164
References (4)
  1. California Department of Fish and Game. 1997. RareFind 2 personal computer program. Information dated March 1999. Sacramento, California.
  2. Flora of North America Editorial Committee (FNA). 2006c. Flora of North America north of Mexico. Vol. 21. Magnoliophyta: Asteridae, part 8: Asteraceae, part 3. Oxford Univ. Press, New York. xxii + 616 pp.
  3. 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.
  4. Skinner, M.W., and B.M. Pavlik, eds. 1997 (1994). Inventory of rare and endangered vascular plants of California. 1997 Electronic Inventory Update of 1994 5th edition, California Native Plant Society, Special Publication No. 1, Sacramento.