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Pellaea ternifolia subsp. arizonica

Pellaea ternifolia subsp. arizonica Windham  
Family: Pteridaceae
Arizonia cliffbrake
Pellaea ternifolia subsp. arizonica image
Cecelia Alexander
  • FNA
  • Resources
Michael D. Windham in Flora of North America (vol. 2)
Petiole rounded or slightly flattened adaxially in distal portion; rachis glabrous or with a few widely scattered hairs; pinnae completely glabrous; largest ultimate segments (excluding terminal pinnae) usually more than 18 mm; spores averaging 46--53 µm diam. 2 n = 116.

Sporulating summer--fall. Cliffs and rocky slopes, on a variety of acidic substrates including quartzite and granite; 1700--2400 m; Ariz., Tex.; n Mexico.

Pellaea ternifolia subsp. arizonica and P . wrightiana hybridize; the hybrids are morphologically intermediate tetraploids and have malformed spores.

Pellaea ternifolia subsp. arizonica
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Pellaea ternifolia subsp. arizonica image
Cecelia Alexander
Pellaea ternifolia subsp. arizonica image
Cecelia Alexander
Pellaea ternifolia subsp. arizonica image
Pellaea ternifolia subsp. arizonica image
Pellaea ternifolia subsp. arizonica image
Pellaea ternifolia subsp. arizonica image
Pellaea ternifolia subsp. arizonica image
Pellaea ternifolia subsp. arizonica image
Pellaea ternifolia subsp. arizonica image
Pellaea ternifolia subsp. arizonica image
Pellaea ternifolia subsp. arizonica image
Pellaea ternifolia subsp. arizonica image
Pellaea ternifolia subsp. arizonica image
Pellaea ternifolia subsp. arizonica image
Pellaea ternifolia subsp. arizonica image
Pellaea ternifolia subsp. arizonica image
Pellaea ternifolia subsp. arizonica image
Pellaea ternifolia subsp. arizonica image
Pellaea ternifolia subsp. arizonica image
Pellaea ternifolia subsp. arizonica image
Pellaea ternifolia subsp. arizonica image
Pellaea ternifolia subsp. arizonica image
Pellaea ternifolia subsp. arizonica image
Pellaea ternifolia subsp. arizonica image
Pellaea ternifolia subsp. arizonica image
Pellaea ternifolia subsp. arizonica image
Pellaea ternifolia subsp. arizonica image
Pellaea ternifolia subsp. arizonica image
Pellaea ternifolia subsp. arizonica image
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