Jepson eFlora
Key to families | Table of families and genera

Key to Dryopteris

View taxon page for Dryopteris

(For a list of species in Dryopteris, use the above link.)

Jepson Manual glossary definitions can be seen by moving your cursor over words underlined with dots.

1. Leaf ± 3-pinnate, proximal pinnae > others, sides strongly unequal ..... D. expansa

1' Leaf 1–2-pinnate, proximal pinnae <= others, sides ± equal

2. Stipe generally > 1/3 leaf length; longest pinnae generally near blade base; veins into segment teeth, adaxially obscure; scales of pinna midribs lance-ovate to lanceolate; blade, indusial glands sparse to ± dense; blades thick; Northwestern California, Sierra Nevada, Sacramento Valley, Central Western California, Southwestern California, Modoc Plateau, s Mojave Desert ..... D. arguta

2' Stipe generally <= 1/3 leaf length; longest pinnae generally near blade middle; veins generally not into segment teeth, adaxially ± widened, prominent at tip; scales of pinna midribs hair-like, linear; blade, indusial glands generally 0 or very sparse; blades thin; San Bernardino Mountains, White and Inyo Mountains ..... D. filix-mas


Citation for the whole project: Jepson Flora Project (eds.) [year] Jepson eFlora, [accessed on month, day, year]
Citation for an individual treatment: [Author of taxon treatment] [year]. [Taxon name] in Jepson Flora Project (eds.) Jepson eFlora, [URL for treatment]. Accessed on [month, day, year].
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