Difference between revisions of "Woodsia obtusa subsp. occidentalis"
Contr. Univ. Michigan Herb. 19: 56. 1993.
Treatment appears in FNA Volume 2.
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Revision as of 18:55, 24 September 2019
Stems short- to long-creeping, individual branches usually 3–5 mm diam. Blade finely cut, 2-pinnate-pinnatifid. Proximal pinnules of lower pinnae usually deeply lobed or pinnatifid. Spores averaging 35–42 µm. 2n = 76.
Phenology: Sporulating summer–fall.
Habitat: Cliffs and rocky slopes (rarely terrestrial), found on a variety of substrates but mostly sandstone and granite
Elevation: 200–500 m
Distribution
Ark., Kans., Mo., Okla., Tex.
Discussion
Woodsia obtusa subsp. occidentalis hybridizes with subsp. obtusa sporadically throughout the region of sympatry; the hybrids are sterile triploids with malformed spores.
Selected References
None.
Lower Taxa
None.