E-Flora BC: Electronic Atlas of the Flora of British Columbia

Polystichum lemmonii Underw.
Lemmon's hollyfern
Dryopteridaceae (Wood Fern family)

Introduction to Vascular Plants

Distribution of Polystichum lemmonii
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Species Information

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Illustration Source: The Illustrated Flora of British Columbia

General:
Evergreen perennial arising from a short, stout rhizome.

Leaves:
Lanceolate, 10-40 cm long, 3-7 cm wide, 2-pinnate, with short stipes; pinnae egg-shaped, with rounded pinnules, the ultimate segments entire or weakly toothed.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Dry to mesic, ultramafic rock outcrops in the montane zone; rare in BC, known only from the Mt. Baldy area; S to ID and CA.

Source: The Illustrated Flora of British Columbia

Similar Species

Polystichum scopulinum and Polystichum kruckebergii are related, morphologically similar taxa to P. lemmonii which occupy similar ultramafic habitats. Polystichum lemmonii may be distinguished from these taxa by bearing truly bipinnate fronds and by an absence of spines or awns on the teeth of the margins of the pinnae (Ceska 2000; Douglas 2003).

Source: British Columbia Conservation Data Centre

Climate

The climate type for this species, as reported in the: "British Columbia plant species codes and selected attributes. Version 6 Database" (Meidinger et al. 2008), is not evaluated, unknown or variable.

Status Information

Origin Status	Provincial Status	BC List (Red Blue List)	COSEWIC
Native	S2?	Red	T (May 2003)

BC Ministry of Environment: BC Species and Ecosystems Explorer, the authoritative source for conservation information in British Columbia.

Synonyms and Alternate Names

Polystichum mohrioides auct. non (Bory) C. Presl

Taxonomic and Nomenclatural Links

Flora North America treatment for Dryopteridaceae
Flora North America treatment for Polystichum lemmonii
Genetic information (NCBI Taxonomy Database)
International Plant Names Index
Taxonomic Information from the World Flora Online
Integrated Taxonomic Information System

Additional Range and Status Information Links

Burke Museum of Natural History (Washington State records)
CalFlora
Consortium of Pacific Northwest Herbaria records
Jepson Interchange
NatureServe Explorer
USDA

Additional Photo Sources

Images From CalPhoto
UT Austin's Native Plant Database
Google Image Search
Flickr Image Search

General References

Google Scholar Search
Family References
General Botanical References for BC

Recommended citation: Author, Date. Page title. In Klinkenberg, Brian. (Editor) 2020. E-Flora BC: Electronic Atlas of the Plants of British Columbia [eflora.bc.ca]. Lab for Advanced Spatial Analysis, Department of Geography, University of British Columbia, Vancouver. [Accessed: 2024-05-09 4:00:25 PM ]

Disclaimer: The information contained in the E-Flora atlas pages is derived from expert sources as cited in each section. This information is scientifically based. E-Flora also acts as a portal to other sites via deep links. As always, users should refer to the original sources for complete information. E-Flora BC is not responsible for the accuracy or completeness of the original information.