Jepson eFlora
Key to families | Table of families and genera

Key to Pellaea

View taxon page for Pellaea

1. Leaf 1-pinnate, pinnae unlobed or deeply 2(3)-lobed

2. Pinnae lance-ovate, deeply 2(3)-lobed; fracture lines at base of stipe many; rhizome scales without dark mid-stripe ..... P. breweri

2' Pinnae rounded, unlobed; fracture lines at base of stipe 0; rhizome scales with dark mid-stripe ..... P. bridgesii

1' Leaf 2–4-pinnate, pinnae compound.

3. Leaf 2–4-pinnate

4. Segment without mucro, generally 6–15 mm, 3–10 mm wide; stipe ± light brown ..... P. andromedifolia

4' Segment with mucro generally 2–6(8) mm, 0.5–2(4) mm wide; stipe dark brown to ± black ..... P. mucronata var. mucronata

3' Leaf 2-pinnate

5. Segment 5–15 × longer than wide, > costa ..... P. brachyptera

5' Segment 1–4 × longer than wide, < costa

6. Fertile segment generally appearing folded in half, recurved margins ± meeting abaxially; c&s High Sierra Nevada, Transverse Ranges, Peninsular Ranges, East of Sierra Nevada, Desert Mountains (except Providence, New York mtns) ..... P. mucronata var. californica

6' Fertile segment not appearing folded in half, recurved margins not meeting abaxially; Desert Mountains (Providence, New York mtns) ..... P. truncata

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Citation for the whole project: Jepson Flora Project (eds.) [year] Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html [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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