E-Flora BC: Electronic Atlas of the Flora of British Columbia

Botrychium lanceolatum (S.G. Gmel.) Angstr.
triangle moonwort
Ophioglossaceae (Adder's-tongue family)

Introduction to Vascular Plants

© Ryan Batten  Email the photographer   (Photo ID #52905)

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Distribution of Botrychium lanceolatum
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Species Information

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Deciduous perennial, 3-25 cm tall.
1- to 3-pinnate, 1-2.5 times length of trophophores, divided into several equally long branches.
Triangular-shaped, unstalked or nearly so; the blades green to pale yellow-green, broad, coarse, succulent, 1- to 2-pinnate with up to 5 pairs of pinnae, the first pair of pinnae longest; margins with distinct lobes, lobes with pointed tips.

Source: The Illustrated Flora of British Columbia

Habitat / Range

Mesic to wet rocky slopes, meadows and woods in the montane to subalpine zones; infrequent throughout BC; circumpolar, N to AK and YT, E to SK and S to NM, AZ and CA; Eurasia.

Source: The Illustrated Flora of British Columbia


Ecological Framework for Botrychium lanceolatum

The table below shows the species-specific information calculated from
original data (BEC database) provided by the BC Ministry of Forests and Range.
(Updated August, 2013)

Site Information
Value / Class




Elevation (metres) 650 1193 2069
Slope Gradient (%) 0 18 40
Aspect (degrees)
[0 - N; 90 - E; 180 - S; 270 - W]
130 171 200
Soil Moisture Regime (SMR)
[0 - very xeric; 4 - mesic;
8 - hydric]
1 3 5
Modal Nutrient Regime
Number of field plots
 species was recorded in:
Modal BEC Zone Class
All BEC Zones (# of stations/zone) species was recorded in: BWBS(1), CWH(1), ESSF(1), ICH(3), IMA(1), SBS(1)


The climate type for this species, as reported in the: "British Columbia plant species codes and selected attributes. Version 6 Database" (Meidinger et al. 2008), is montane boreal & cool temperate.

Taxonomic and Nomenclatural Links

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General References