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Andy Murdock, Alan R. Smith & Thomas Lemieux

Plant on ground (or other plants), creeping (to ± vine-like). Stem: branches few to many, forked often unequally, also branched laterally or not. Leaf: many, simple, ± alternate, spirally arranged, small, needle- or scale-like, 1-veined, few-toothed to generally entire, those subtending sporangia generally unlike others [or not], in distinct cones [or not]. Cone: terminal on erect stem, erect [or 0]. Sporangia: 1 in leaf axils; spores of 1 kind.
4 genera, ± 400 species: worldwide, generally tropics. [Wagner & Beitel 1993 FNANM 2:18–37] —Scientific Editors: Alan R. Smith, Thomas J. Rosatti.
Unabridged references: [Ållgaard 1987 Opera Bot 92:153–178]

Key to Lycopodiaceae

Stem: sterile branched in > 1 plane; fertile erect.
± 40 species: worldwide. (Greek: wolf foot, from branch tips)

L. clavatum L. RUNNING-PINE
Stem: sterile wide-creeping to ± vine-like, < 0.5 m, 0.5–1.5 cm wide, including leaves; fertile ± 10–20 cm terminated by 2–5 cones. Leaf: ± 4–7 mm, 0.5–1 mm wide, with narrow bristle tip, those subtending sporangia ovate-triangular, abruptly bristle-tipped. Cone: 1–3(5) cm, ± 4–6 mm wide.
2n=68. Moist ground, swamps (on trees); < 200 m. North Coast; to Alaska, Montana, New Mexico, eastern North America; Caribbean, South America, Europe, Africa, Asia. [Online Interchange] {CNPS list}

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Citation for the whole project: Jepson Flora Project (eds.) 2013. Jepson eFlora,, accessed on Nov 26 2015
Citation for this treatment: [Author of taxon treatment] 2013. Lycopodium, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on Nov 26 2015

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Geographic subdivisions indicated for the distribution of Lycopodium clavatum Markers link to CCH specimen records. If the markers are obscured, reload the page [or change window size and reload]. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.
map of distribution 1
(Note: any qualifiers in the taxon distribution description, such as 'northern', 'southern', 'adjacent' etc., are not reflected in the map above, and in some cases indication of a taxon in a subdivision is based on a single collection or author-verified occurence).

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Data provided by the participants of the Consortium of California Herbaria.
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CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa.
Blue line denotes eFlora flowering time.