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|Jepson eFlora: Taxon page
Key to families | Table of families and genera
Index to accepted names and synonyms:
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|Family: Ophioglossaceae||View Description||Dichotomous Key|
|Genus: Botrychium||View Description||Dichotomous Key|
|Species:||View Description||Dichotomous Key|
Botrychium pinnatum H. St. John
Leaf: sporophore, trophophore joined distal to mid-leaf; trophophore stalk 0--0.2 mm, blade pinnately lobed to 2-pinnate, 3--6 cm, 2--4 cm wide, oblong to deltate, pinnae 4--7 pairs, ovate to elliptic, shiny, bright green, midribbed, deeply lobed at base to entire near tip, margins entire to minutely crenate; sporophore 2-pinnate, deltate, stalk +- = trophophore. Chromosomes: 2n=180.
Ecology: Moist fields, shrubby slopes; Elevation: 1900--2800 m. Bioregional Distribution: KR (Etna Mills, Siskiyou Co.), CaRH (Mount Shasta, Domingo Lake se of Lassen Peak), c SNH (Bond Pass, Tuolumne Co.); Distribution Outside California: to Alaska, central Canada, Colorado. Note: A similar 2 ×-dissected moonwort, Botrychium lanceolatum (S.G. Gmel.) Angstr., occurs at Crater Lake, Oregon and may be expected in California. It differs from Botrychium pinnatum in having ternately dissected trophophore with narrow, pointed lobes.
Synonyms: Botrychium boreale J. Milde subsp. obtusilobum (Rupr.) R.T. Clausen
eFlora Treatment Author: Donald R. Farrar
Jepson Online Interchange
Listed on CNPS Rare Plant Inventory
Previous taxon: Botrychium paradoxum
Next taxon: Botrychium pumicola
Citation for this treatment: Donald R. Farrar 2016. Botrychium pinnatum, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=15941, accessed on May 28, 2016.
Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on May 28, 2016.