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Pentagramma pallida

(Weatherby) Yatskievych, Windham & Wollenweber

Pale Silverback Fern

G3Vulnerable (G3?) Found in 7 roadless areas NatureServe Explorer →
G3VulnerableGlobal Rank
Identity
Unique IDELEMENT_GLOBAL.2.152169
Element CodePPADI0Q010
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVascular Plant
Endemicendemic to a single state or province
KingdomPlantae
PhylumFilicinophyta
ClassFilicopsida
OrderFilicales
FamilyPteridaceae
GenusPentagramma
Other Common Names
Frosty Silverback Fern (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.
Taxonomic Comments
The circumscription of the genus with six species following Schuettpelz et al. (2015) and the generic placement of this taxon are in accordance with the Pteridophyte Phylogeny Group I (2016).
Kartesz' 1994 checklist spelled the genus name "Pentagrama", but he corrected the spelling to "Pentagramma" in his 1999 Floristic Synthesis, which agrees with the spelling in various other sources (Hickman, 1993; Flora of North America, 1993).
Conservation Status
Review Date2001-06-28
Change Date2001-06-28
Edition Date2001-06-28
Edition AuthorsMorse, Larry (2001)
Rank Reasons
California endemic, known from the Sierra foothills, with broad elevation range and common habitats.
Ecology & Habitat
Other Nations (1)
United StatesN3
ProvinceRankNative
CaliforniaSNRYes
Plant Characteristics
Economic Value (Genus)No
Roadless Areas (7)
California (7)
AreaForestAcres
Black Mtn.Sequoia National Forest15,102
Devil GulchSierra National Forest30,490
Greenhorn CreekSequoia National Forest28,226
Mill CreekSequoia National Forest27,643
MosesSequoia National Forest22,077
RinconSequoia National Forest54,610
WoodpeckerSequoia National Forest11,936
References (5)
  1. Flora of North America Editorial Committee (FNA). 1993a. Flora of North America north of Mexico. Vol. 2. Pteridophytes and gymnosperms. Oxford Univ. Press, New York. xvi + 475 pp.
  2. Hickman, J. C., ed. 1993. The Jepson manual: Higher plants of California. University of California Press, Berkeley, CA. 1400 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. Pteridophyte Phylogeny Group I. 2016. A Community-Derived Classification for Extant Lycophytes and Ferns. Journal of Systematics and Evolution 54(6): 563–603.
  5. Schuettpelz, E., K.M. Pryer, and M.D. Windham. 2015. A unified approach to taxonomic delimitation in the fern genus <i>Pentagramma </i>(Pteridaceae).Systematic Botany 40(3): 629-644.