Difference between revisions of "Botrychium hesperium"
Amer. Fern J. 71: 92. 1981.
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|common_names=Western moonwort | |common_names=Western moonwort | ||
| + | |special_status={{Treatment/ID/Special_status | ||
| + | |code=E | ||
| + | |label=Endemic | ||
| + | }} | ||
|basionyms={{Treatment/ID/Basionym | |basionyms={{Treatment/ID/Basionym | ||
|name=Botrychium matricariifolium subsp. hesperium | |name=Botrychium matricariifolium subsp. hesperium | ||
|authority=Maxon & R.T. Clausen | |authority=Maxon & R.T. Clausen | ||
| + | |rank=subspecies | ||
|publication_title=Mem. Torrey Bot. Club | |publication_title=Mem. Torrey Bot. Club | ||
|publication_place=19(2): 88, fig. 15. 1938 | |publication_place=19(2): 88, fig. 15. 1938 | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Botrychium hesperium | name=Botrychium hesperium | ||
| − | |||
|authority=(Maxon & R. T. Clausen) W. H. Wagner & Lellinger | |authority=(Maxon & R. T. Clausen) W. H. Wagner & Lellinger | ||
|rank=species | |rank=species | ||
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|publication title=Amer. Fern J. | |publication title=Amer. Fern J. | ||
|publication year=1981 | |publication year=1981 | ||
| − | |special status= | + | |special status=Endemic |
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/2e0870ddd59836b60bcf96646a41e87ea5a5943a/coarse_grained_fna_xml/V2/V2_687.xml |
|genus=Botrychium | |genus=Botrychium | ||
|subgenus=Botrychium subg. Botrychium | |subgenus=Botrychium subg. Botrychium | ||
Latest revision as of 21:24, 5 November 2020
Trophophore stalk 0–3(–10) mm, to 1/4 length of trophophore rachis; blade ± gray-green, dull, oblong-linear to deltate, 1–2-pinnate, to 6 × 5 cm, firm. Pinnae to 6 pairs, ascending, usually approximate or overlapping except in shade forms, distance between 1st and 2d pinnae not or slightly more than between 2d and 3d pairs, basal pinna pair commonly much larger and more divided than adjacent pair, lobed to tip, basal pair oblong to oblong-lanceolate with lobed margins, remainder broadly spatulate with entire margins or 1 or more shallow lobes, apex rounded, venation pinnate. Sporophores 1–3 pinnate, 2–3 times length of trophophore. 2n =180.
Phenology: Leaves appearing in midspring, dying in early fall.
Habitat: Grassy mountain slopes, snow fields, road ditches with willows, and sand dunes
Elevation: 200–2800 m
Distribution
Alta., B.C., Ont., Sask., Ariz., Colo., Idaho, Mich., Mont., Utah, Wyo.
Discussion
In the Rocky Mountains Botrychium hesperium grows often with B. echo, and in the Lake Superior region, with B. acuminatum and B. matricariifolium.
Selected References
None.