D I S C O V E R    L I F E   
Bee Hunt! Odonata Lepidoptera 
  HomeAll Living ThingsIDnature guidesGlobal mapperAlbumsLabelsSearch
  AboutNewsEventsResearchEducationProjectsStudy sitesHelp

Woodsia obtusa (Sprengel) Torrey
Life   Plantae   Pteridophyta   Dryopteridaceae   Woodsia

Woodsia obtusa, whole plant - unspecified
© Copyright Steve Baskauf, 2002-2011 · 4
Woodsia obtusa, whole plant - unspecified

Click on map for details about points.

IDnature guides

80x5 - 240x3 - 240x4 - 320x1 - 320x2 - 320x3 - 640x1 - 640x2
Set display option above.
Click on images to enlarge.
Woodsia obtusa
© Copyright Steve Baskauf, 2002-2011 · 4
Woodsia obtusa
Woodsia obtusa
© Copyright Steve Baskauf, 2002-2011 · 4
Woodsia obtusa

Woodsia obtusa
© Copyright Steve Baskauf, 2002-2011 · 4
Woodsia obtusa
Woodsia obtusa
© Les Mehrhoff, 2008-2010 · 3
Woodsia obtusa

Woodsia obtusa obtusa, sporangia
© George Yatskievych, 2006-2011 · 1
Woodsia obtusa obtusa, sporangia
Woodsia obtusa, entire
© George Yatskievych, 2006-2011 · 1
Woodsia obtusa, entire

Woodsia obtusa, pinnules
© George Yatskievych, 2006-2011 · 1
Woodsia obtusa, pinnules
Woodsia obtusa, sori
© George Yatskievych, 2006-2011 · 1
Woodsia obtusa, sori

Associates · map
FamilyScientific name @ source (records)
Miridae  Monalocoris americanus @ NCSU (1)
Pucciniastraceae  Hyalopsora polypodii @ BPI (2)

go to Discover Life's Facebook group

Following modified from Plants Database, United States Department of Agriculture
   Top | See original

http://plants.usda.gov/java/profile?symbol=WOOB2 ---> https://plants.usda.gov/java/profile?symbol=WOOB2
https://plants.usda.gov/java/profile?symbol=WOOB2 ---> http://plants.usda.gov/core/profile?symbol=WOOB2
http://plants.usda.gov/core/profile?symbol=WOOB2 ---> https://plants.usda.gov/core/profile?symbol=WOOB2
Link: Skip repetitive navigation links
USDA and NRCS Identifier NRCS Logo
USDA.gov Web Site PLANTS photo banner
PLANTS Home  about PLANTS  PLANTS Team  Partners of PLANTS  What  National Plant Data Team Web Site  Help using PLANTS  Contact PLANTS
 Search the PLANTS Web site
 Name Search

 State Search
 Advanced Search
 Search Help
 Alternative Crops
 Cover Crops
 Culturally Significant
 Distribution Update
 Fact Sheets & Plant Guides
 Introduced, Invasive, and Noxious Plants
 Threatened & Endangered
 Wetland Indicator Status
PLANTS Image Gallery
 50,000+ Plant Images
Download PLANTS data
 Complete PLANTS Checklist
 State PLANTS Checklist
 Advanced Search Download
 Symbols for Unknown Plants
 NRCS State GSAT Lists
 NRCS State Plants Lists
Related tools
 Crop Nutrient Tool
 Ecological Site Information System
 PLANTS Identification Keys
 Plant Materials Web Site
 Plant Materials Publications
 USDA Plant Hardiness Map
You are here: Home / Plant Profile

Woodsia obtusa (Spreng.) Torr.
bluntlobe cliff fern

Image of Woodsia obtusa

General Information
Symbol: WOOB2
Group: Fern
Family: Dryopteridaceae
Duration: Perennial
Growth Habit : Forb/herb
Native Status : CAN   N
L48   N
Data Source and Documentation
About our new maps
Plants-NRCS Logos
green round image for nativity Native blue round image for introduced Introduced ocre round image for introduced and nativity Both white round image for no status Absent/Unreported
image for native, but no county data Native, No County Data image for introduced, but no county data Introduced, No County Data both introduced and native, but no county data Both, No County Data
Native Status:
lower 48 status L48    Alaska status AK    Hawaii status HI    Puerto Rico status PR    Virgin Islands status VI    Navassa Island NAV    Canada status CAN    Greenland status GL    Saint Pierre and Michelon status SPM    North America NA   


click on a thumbnail to view an image, or see all the Woodsia thumbnails at the Plants Gallery

©Thomas G. Barnes. Barnes, T.G., and S.W. Francis. 2004. Wildflowers and ferns of Kentucky . University Press of Kentucky. Usage Requirements .

Britton, N.L., and A. Brown. 1913. An illustrated flora of the northern United States, Canada and the British Possessions. 3 vols. Charles Scribner's Sons, New York. Vol. 1: 14. Provided by Kentucky Native Plant Society . Scanned by Omnitek Inc . Usage Requirements .




Click on a scientific name below to expand it in the PLANTS Classification Report.
Rank Scientific Name and Common Name
Kingdom Plantae – Plants
Subkingdom Tracheobionta – Vascular plants
Division Pteridophyta – Ferns
Class Filicopsida
Order Polypodiales
Family Dryopteridaceae – Wood Fern family
Genus Woodsia R. Br. – cliff fern
Species Woodsia obtusa (Spreng.) Torr. – bluntlobe cliff fern

Subordinate Taxa

The Plants Database includes the following 2 subspecies of Woodsia obtusa . Click below on a thumbnail map or name for subspecies profiles. Plant is native (blue) Native Plant is introduced Introduced Plant is introduced Native and Introduced Related taxa legend Distribution of <i>
Woodsia obtusa</i>
(Spreng.) Torr. ssp. <i>
obtusa </i>
Woodsia obtusa ssp. obtusa
bluntlobe cliff fern Distribution of <i>
Woodsia obtusa</i>
(Spreng.) Torr. ssp. <i>
Woodsia obtusa ssp. occidentalis
western cliff fern

Legal Status

Threatened and Endangered Information:
This plant is listed by the U.S. federal government or a state. Common names are from state and federal lists. Click on a place name to get a complete protected plant list for that location.
Maine blunt-lobed woodsia Threatened
Michigan blunt-lobed woodsia Threatened
New Hampshire blunt-lobe woodsia Threatened
New York blunt-lobed woodsia Exploitably Vulnerable

Wetland Status

Interpreting Wetland Status

Related Links

More Accounts and Images
Flora of North America (WOOB2)
Integrated Taxonomic Information System (WOOB2)
Kemper Center for Home Gardening (WOOB2)
Lady Bird Johnson Wildflower Center Native Plant Information Network (WOOB2)
USF Atlas of Florida Vascular Plants (WOOB2)
University of Tennessee Herbarium (Distribution) (WOOB2)



Source Large Mammals Small Mammals Water Birds Terrestrial Birds


Source Large Mammals Small Mammals Water Birds Terrestrial Birds

Description of Values

Value Class Food Cover

 PLANTS Home | USDA.gov | NRCS | Site Map | Policies and Links
Accessibility Statement | Privacy Policy | Non-Discrimination Statement

Following modified from Flora of North America
   Top | See original

Link to Flora of North America home
All Floras       Advanced Search
FNA Vol. 2 Login | eFloras Home | Help
FNA | Family List | FNA Vol. 2 | Dryopteridaceae | Woodsia

7. Woodsia obtusa (Swartz) Torrey in New York State, Rep. Geol. Surv. 195. 1840.

Blunt-lobed cliff fern, woodsie à lobes arrondis

Aspidium obtusum Swartz, Syn. Fil., 420. 1806; based on Polypodium obtusum Sprengel, Anleit. Kenntn. Gew. 3: 93. 1804, not Poiret 1804; Woodsia perriniana (Sprengel) Hooker & Greville

Stems compact to creeping, erect to horizontal, with few to many persistent petiole bases of unequal lengths; scales often uniformly brown but at least some bicolored with dark central stripe and pale brown margins, narrowly lanceolate. Leaves 8--60 × 2.5--12 cm. Petiole light brown or straw-colored when mature, occasionally darker at very base, not articulate above base, relatively brittle and easily shattered. Blade lanceolate to ovate, 2-pinnate to 2-pinnate-pinnatifid proximally, moderately glandular, rarely somewhat viscid; many glandular hairs with thick stalks and distinctly bulbous tips; rachis with glandular hairs and scattered, often hairlike scales. Pinnae ovate-deltate to elliptic, longer than wide, abruptly tapered to a rounded or broadly acute apex, occasionally attenuate; largest pinnae with 5--14 pairs of pinnules; abaxial and adaxial surfaces glandular, lacking nonglandular hairs or scales. Pinnules dentate, sometimes deeply lobed; margins nonlustrous, thin, with occasional glands, lacking cilia or translucent projections. Vein tips usually enlarged to form whitish hydathodes visible adaxially. Indusia of relatively broad, nonfilamentous segments, these multiseriate throughout, composed of ± isodiametric cells, entire or glandular along distal edge, concealed by or slightly surpassing mature sporangia. Spores averaging 35--47 µm.

Subspecies 2: only in the flora.

Woodsia obtusa comprises two cytotypes that are treated here as subspecies because they show subtle morphologic and ecological distinctions and tend to have different distributions. Tetraploid populations (subsp. obtusa ) are found throughout the eastern flora, commonly occurring on limestone. The diploid (subsp. occidentalis ) is found near the western edge of the species range, usually on sandstone and granitic substrates. Isozyme studies suggest that subsp. obtusa may have been derived from subsp. occidentalis through autopolyploidy (M. D. Windham 1993). The westernmost collections of Woodsia obtusa (all subsp. occidentalis ) come from the Wichita Mountains of Oklahoma and the Edwards Plateau of Texas. Reports of this species from the trans-Pecos region of western Texas are apparently based on misidentifications.

Following modified from CalPhotos
   Top | See original

http://calphotos.berkeley.edu/cgi/img_query?query_src=dl&where-taxon=Woodsia+obtusa&where-lifeform=specimen_tag&rel-lifeform=ne&rel-taxon=begins+with&where-lifeform=Plant ---> https://calphotos.berkeley.edu/cgi/img_query?query_src=dl&where-taxon=Woodsia+obtusa&where-lifeform=specimen_tag&rel-lifeform=ne&rel-taxon=begins+with&where-lifeform=Plant

Contributors       Log In  

Number of matches : 1
Query: SELECT * FROM img WHERE ready=1 and taxon like "Woodsia obtusa%" and (lifeform != "specimen_tag" OR lifeform != "Plant") ORDER BY taxon

Click on the thumbnail to see an enlargement

Woodsia obtusa
Woodsia obtusa
ID: 3333 1111 1107 0039 [detail]
© University and Jepson Herbaria

Using these photos: A variety of organizations and individuals have contributed photographs to CalPhotos. Please follow the usage guidelines provided with each image. Use and copyright information, as well as other details about the photo such as the date and the location, are available by clicking on the [detail] link under the thumbnail. See also: Using the Photos in CalPhotos .   

Copyright © 1995-2019 UC Regents. All rights reserved.

CalPhotos is a project of BNHM      University of California, Berkeley

Updated: 2020-04-06 17:35:08 gmt
Discover Life | Top
© Designed by The Polistes Corporation