Adiantum viridimontanum - Paris
Green Mountain Maidenhair
Other Common Names: Green Mountain maidenhair
Taxonomic Status: Accepted
Related ITIS Name(s): Adiantum viridimontanum Paris (TSN 181793)
French Common Names: adiante des montagnes Vertes
Unique Identifier: ELEMENT_GLOBAL.2.141112
Element Code: PPADI030M0
Informal Taxonomy: Plants, Vascular - Ferns and relatives
 
Kingdom Phylum Class Order Family Genus
Plantae Filicinophyta Filicopsida Filicales Pteridaceae Adiantum
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Concept Reference
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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.
Concept Reference Code: B94KAR01HQUS
Name Used in Concept Reference: Adiantum viridimontanum
Conservation Status
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NatureServe Status

Global Status: G3
Global Status Last Reviewed: 01Nov2011
Global Status Last Changed: 05Oct2005
Ranking Methodology Used: Ranked by calculator
Rounded Global Status: G3 - Vulnerable
Reasons: Adiantum viridimontanum is known only from serpentine areas of northern Vermont and southeasern Quebec. There are a total of 40 occurrences. Most of the Quebec sites are in active or inactive asbestos mines. 2 sites are Historic.
Nation: United States
National Status: N2
Nation: Canada
National Status: N3 (14Oct2017)

U.S. & Canada State/Province Status
Due to latency between updates made in state, provincial or other NatureServe Network databases and when they appear on NatureServe Explorer, for state or provincial information you may wish to contact the data steward in your jurisdiction to obtain the most current data. Please refer to our Distribution Data Sources to find contact information for your jurisdiction.
United States Vermont (S2)
Canada Quebec (S3)

Other Statuses

Committee on the Status of Endangered Wildlife in Canada (COSEWIC): Candidate (Low) (26Jan2015)

NatureServe Global Conservation Status Factors

Area of Occupancy: 26-125 4-km2 grid cells
Area of Occupancy Comments:  

Number of Occurrences: 21 - 80
Number of Occurrences Comments: Six occurrences in Vermont and 34 occurrences in Quebec.

Population Size Comments: In all but one of the Vermont occurrences there are greater than 100 individuals; one of these populations has over 1000 individuals covering a few acres. Vermont occurrences are estimated to contain a total of approximately 2000 plants (Farnsworth n.d.)

Overall Threat Impact: Medium
Overall Threat Impact Comments: The foreseeable threat with the greatest impact is habitat degradation/loss. Although asbestos mines have closed in Vermont, many of the Quebec occurrences are threatened by continuation or resumption of mining activities (Ruesink 2001). Other threats include road expansion, over-collection, invasive species, and logging (Ruesink 2001, Farnsworth n.d.). Possible development of former mines as dump sites in Vermont may also be a threat (Ruesink 2001).

Short-term Trend: Relatively Stable (<=10% change)
Short-term Trend Comments: In general, populations appear stable with little annual variation in size and condition (Ruesink 2001).

Other NatureServe Conservation Status Information

Distribution
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U.S. States and Canadian Provinces

Due to latency between updates made in state, provincial or other NatureServe Network databases and when they appear on NatureServe Explorer, for state or provincial information you may wish to contact the data steward in your jurisdiction to obtain the most current data. Please refer to our Distribution Data Sources to find contact information for your jurisdiction.
Color legend for Distribution Map

U.S. & Canada State/Province Distribution
United States VT
Canada QC

Range Map
No map available.


U.S. Distribution by County Help
State County Name (FIPS Code)
VT Lamoille (50015), Orleans (50019)
* Extirpated/possibly extirpated
U.S. Distribution by Watershed Help
Watershed Region Help Watershed Name (Watershed Code)
04 Lamoille River (04150405)+, Missiquoi River (04150407)+
+ Natural heritage record(s) exist for this watershed
* Extirpated/possibly extirpated
Ecology & Life History
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Basic Description: A fern which closely resembles the common maidenhair fern. It is a fertile hybrid between A. pedatum and A. aleuticum.
Terrestrial Habitat(s): Bare rock/talus/scree, Barrens, Cliff
Habitat Comments: Outcrops and ledges composed of ultramafic rock and serpentine soils.
Economic Attributes
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Economically Important Genus: Y
Management Summary Not yet assessed
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Population/Occurrence Delineation Not yet assessed
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Population/Occurrence Viability
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U.S. Invasive Species Impact Rank (I-Rank) Not yet assessed
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Authors/Contributors
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NatureServe Conservation Status Factors Edition Date: 08Mar2017
NatureServe Conservation Status Factors Author: Geoffrey Hall, rev. A. Olivero (2003), rev. Treher (2017)

Botanical data developed by NatureServe and its network of natural heritage programs (see Local Programs), The North Carolina Botanical Garden, and other contributors and cooperators (see Sources).

References
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  • Farnsworth, E.J. No date. Center for Plant Conservation National Collection Plant Profile: Adiantum viridimontanum. Online. Available: http://ridgwaydb.mobot.org/cpcweb/CPC_ViewProfile.asp?CPCNum=9328. Accessed 2003, April 11.

  • Fleurbec / G. Lamoureux, S. Lamoureux, A. Tousignant, L. Cournoyer et R.F. Gauthier / 1994. Plantes susceptibles d'être désignées menacées ou vulnérables. Noms français de 229 espèces. Rapport non publié, préparé pour le gouvernement du Québec, ministère

  • Hall, G. 2003. Inventaire floristique des affleurements de serpentine en Estrie. Rapport préparé pour l'agence de mise en valeur de la forêt privée de l'Estrie. 255 p.

  • 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.

  • Paris, C. A. 1991. Adiantum viridimontanum, a new maidenhair fern in eastern North America. Rhodora 93(874): 105-122.

  • Paris, C.A. 1991. Adiantum viridimontanum, a new maidenhair fern in Eastern North America. Rhodora 93 : 105-121.

  • Paris, C.A. et M.D. Windham 1988. A biosystematic investigation of the Adiantum pedatum complex in eastern North America. Systematic Botany 13 : 240-255.

  • Paris, Cathy A. 1991. Adiantum Viridimontanum, a New Maidenhair Fern in Eastern North America. Rhodora, Vol. 93, No. 874, pp. 105-122, 1991.

  • Ruesink, A. 2001. Adiantum viridimontanum Paris (Green Mountain maidenhair fern) conservation and research plan. New England Wild Flower Society, Framingham, Massachusetts.

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