Botrychium hesperium
Botrychium spathulatum
western moonwort
botryche à segments spatulés, spathulate botrychium, spatulate moonwort, spoon-shape moonwort
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.
to 8 pairs, ascending, remote, distance between 1st and 2d pinnae not or slightly more than between 2d and 3d pairs, basal pinna pair approximately equal in size and cutting to adjacent pair, mostly narrowly spatulate to linear-spatulate and rounded or ± 2-cleft, lobed to unlobed to tip, margins mainly entire or occasionally irregularly and shallowly incised, apex rounded-notched, venation like ribs of fan, midrib absent.
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.
stalk 0–1 mm;
blade shiny yellow-green, narrowly deltate, flat, 1-pinnate, to 8 × 2.5 cm, thick, leathery.
1–3 pinnate, 2–3 times length of trophophore.
1–2-pinnate, 1.2–2 times length of trophophore.
=180.
=180.
Botrychium hesperium
Botrychium spathulatum
In the Rocky Mountains Botrychium hesperium grows often with B. echo, and in the Lake Superior region, with B. acuminatum and B. matricariifolium.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Botrychium spathulatum has long been confused with the more common B. minganense, with which it often grows in the Lake Superior region. The leaves appear later in B. spathulatum than in B. minganense.
(Discussion copyrighted by Flora of North America; reprinted with permission.)
BC
OR
WA
Flora NW
MI Flora
PNW Herbaria
SW CO Wildflowers
WildflowerSearch
iNaturalist
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