Botrychium lanceolatum |
Botrychium oneidense |
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botryche élancé, lance-leaf grapefern, lance-leaf moonwort, red triangle moonwort, triangle moonwort |
blunt-lobe grape-fern, blunt-lobed grapefern, botryche d'oneida, botryche du lac onéida |
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Pinnae | to 5 pairs, ascending, approximate, distance between 1st and 2d pinnae not or slightly more than between 2d and 3d pairs, linear to broadly lanceolate, entire to divided to tip, margins with distinct lobes or segments, apex acute to rounded, venation pinnate. |
to 5 pairs, usually remote, horizontal to ascending, distance between 1st and 2d pinnae not or slightly more than between 2d and 3d pairs, undivided except in proximal 2/3–3/4. |
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Trophophore | stalk 0–1 mm; blade dull to shiny green to dark green, deltate, 1–2-pinnate, to 6 × 7 cm. |
stalk 2–15 cm, 1.5–2.5 times length of blade rachis; blade dull bluish green, ± plane, 2–3-pinnate, to 15 × 20 cm, ± leathery. |
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Sporophores | 1–3-pinnate, 1–2.5 times length of trophophore, divided into several equally long branches (all other botrychiums have a single stalk or 1 dominant and 2 smaller). |
2–3-pinnate, 1.5–2.5 times length of trophophore. |
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Pinnules | obliquely ovate, margins finely crenulate to denticulate, apex rounded to acute, venation pinnate. |
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2n | =90. |
=90. |
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Botrychium lanceolatum |
Botrychium oneidense |
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Phenology | Leaves green over winter, sporophores seasonal, new leaves appearing in spring. | |||||
Habitat | In moist, shady, acidic woods and swamps | |||||
Elevation | 0–1200 m (0–3900 ft) | |||||
Distribution |
AK; AZ; CO; CT; ID; KY; MA; ME; MI; MN; MT; NH; NJ; NM; NV; NY; OH; OR; PA; RI; TN; UT; VA; VT; WA; WI; WV; WY; AB; BC; NB; NF; NS; ON; QC; SK; YT; Eurasia
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CT; DC; DE; IN; KY; MA; MD; ME; MI; MN; NC; NH; NJ; NY; OH; PA; RI; VA; VT; WI; WV; NB; ON; QC
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Discussion | Subspecies 2 (2 in the flora). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
Botrychium oneidense commonly occurs with B. dissectum and B. multifidum. Young individuals of both may resemble B. oneidense (W.H. Wagner Jr. 1961b). (Discussion copyrighted by Flora of North America; reprinted with permission.) |
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Key |
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Source | FNA vol. 2. | FNA vol. 2. | ||||
Parent taxa | Ophioglossaceae > Botrychium > subg. Botrychium | Ophioglossaceae > Botrychium > subg. Sceptridium > sect. Sceptridium | ||||
Sibling taxa | ||||||
Subordinate taxa | ||||||
Synonyms | Osmunda lanceolata | B. ternatum var. oneidense, B. dissectum var. oneidense, B. multifidum var. oneidense | ||||
Name authority | (S. G. Gmelin) Angström: Bot. Not. 1854: 68. (1854) | (Gilbert) House: Amer. Midl. Naturalist 7: 126. (1905) | ||||
Web links |
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