| | Lycopodium selago L. |
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| Family | Lycopodiaceae — APG family: Lycopodiaceae |
| Synonyms | Huperzia selago (L.) Bernh. |
| Common name | fir club moss |
| Description | Dichotomously branched, with thick branches reaching same height, often with young buds in their axes; spore-bearing leaves, similar to vegetative leaves, in zones alternating with vegetative leaves, each seasonal growth having a basal sterile zone and an apical fertile zone. |
| Ecology | Woods, bogs, heaths, from lowlands up to alpine region. Described from North Europe. Circumpolar map indicates range of entire complicated species complex. |
| Uses | Contains a poisonous alkaloid causing pain in the mouth, vomiting, and diarrhea. |
