Lycopodium clavatum

Species:Lycopodium clavatum L.
Common Name:Stag's Horn Clubmoss
Associated Ecological Communities:**
Growth Habit:Herb
USDA Symbol:**
Plant Notes:Stag’s Horn Clubmoss is a native herbaceous perennial in the Clubmoss Family (LYCOPODIACEAE). It is widespread, occurring in North, Central, and South America; the Caribbean; Europe; Asia; Africa; and on Pacific islands. However, it is currently only known from Clay county in east-central Alabama. Stag’s Horn Clubmoss occurs in acidic coniferous or hardwood forest on mountain slopes, in disturbed forests, and along forest edges. It is a perennial with an elongate horizontal stem with appressed leaves that is located above the soil surface. Scattered roots develop along the underside of the creping stem and upright stems along the upper surface. The upright stems have 3-6 branches, mostly towards the lower half of the stem. The leaves of the branches and upright stems are spreading, linear in outline, with entire margins and a hair-like tip. The leaves are often a yellow-green color. Stag’s Horn Clubmoss reproduces by forming spores. The spores are located in sporangia that are grouped together in a club-like structure known as a strobolis. There are 2-5 strobili on upright forked peduncles that are taller than the vegetative shoots. This species is often collected for wreaths and Christmas decorations. Stag's Horn Clubmoss has been used as a homoeopathic treatment for digestive problems, eczema, and emotional disorders.—A. Diamond.
Taxonomic Notes:**
References:Diamond, A.R. 2020. Vascular plant species new to the flora of Alabama. Castanea 85(1): 139–145.

** Not applicable or data not available.


FamilyLYCOPODIACEAE - Clubmoss family
Genus Lycopodium
Species Lycopodium clavatum L. - Stag's Horn Clubmoss


Citation Lycopodium clavatum Linnaeus, Sp. Pl. 2: 1101. 1753.
Basionym: **
Type: Without data, Herb. Burser XX: 49 (lectotype: UPS). Lectotypified by Jarvis, C. E., F. R. Barrie, D. M. Allan & J. L. Reveal. Regnum Veg. 127: 63. 1993.

** Not applicable or data not available.


No synonyms exist for this species.

Specimens and Distribution

This species has been reported in the following counties by the herbaria listed. An overview of the individual specimens are provided in the table that follows. Click on the accession number to view details; click on column headers to sort; choose a county or herbaria to filter the specimen data.

Counties included on distribution map: Clay

Counties represented by specimen data listed below:

Herbaria represented by specimen data listed below: ALNHS, TROY, UWAL

Range of years during which specimens were collected: -

Barcode / Accession No. County Coll. Date Collector &
Collection No.
Herbarium &
Herbarium Name Used
ALNHS00007157 Clay 10 Jun 2021 Barger, T. Wayne
Lycopodium clavatum L.
UWAL0049426 Clay 23 May 2019 Diamond, Alvin R.
Lycopodium clavatum L.
ALNHS00006819 Clay 20 May 2020 Barger, T. Wayne
Lycopodium clavatum L.
TROY000049440 Clay 23 May 2019 Diamond, Alvin R.
Lycopodium clavatum Linnaeus
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