Jepson Flora Project: Jepson Interchange    

link to manual TREATMENT FROM THE JEPSON MANUAL (1993) previous taxon | next taxon
Jepson Interchange (more information)
©Copyright 1993 by the Regents of the University of California
For up-to-date information about California vascular plants, visit the Jepson eFlora.



Alan R. Smith and Thomas Lemieux

Plants on ground or other plants, creeping to ± vine-like
Stem: branches few–many, forked often unequally, also branching laterally or not
Leaves many, simple, ± alternate, spirally arranged, small, needle- or scale-like, 1-veined, few-toothed to generally entire, those subtending sporangia generally unlike others, sometimes in cones
Cone terminal on erect stem, erect
Sporangia solitary in leaf axils; spores of 1 kind per plant, scar with 3 radiating branches
Genera in family: 4 genera, ± 400 species: worldwide, generally tropical
Reference: [Ållgaard 1987 Opera Bot 92:153–178]


Stem: sterile branched in > 1 plane; fertile erect, branched, terminated by few–many cones
Species in genus: ± 40 species: worldwide
Etymology: (Greek: wolf foot, from branch tips)


L. clavatum L.


Plant on ground or other plants
Stem: sterile wide-creeping to ± vine-like, < 0.5 m, 0.5–1.5 cm wide, including leaves; fertile generally many, ± 10–20 cm, few-much-branched
Leaves ± 4–7 mm, 0.5–1 mm wide, those subtending sporangia ovate-triangular, bristle-tipped
Cone 1–3(5) cm, ± 4–6 mm wide
Chromosomes: 2n=68
Ecology: Moist ground, swamps, rarely on trees
Elevation: < 200 m.
Bioregional distribution: North Coast
Distribution outside California: to Alaska, Montana (also e N.America), Caribbean, S.America, Europe, Africa, Asia
See the CNPS Inventory for information about endangerment and rarity.
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bioregional map for LYCOPODIUM%20clavatum being generated
YOU CAN HELP US make sure that our distributional information is correct and current. If you know that a plant occurs in a wild, reproducing state in a Jepson bioregion NOT highlighted on the map, please contact us with that information. Please realize that we cannot incorporate range extensions without access to a voucher specimen, which should (ultimately) be deposited in an herbarium. You can send the pressed, dried collection (with complete locality information indicated) to us (e-mail us for details) or refer us to an accessioned herbarium specimen. Non-occurrence of a plant in an indicated area is difficult to document, but we will especially value your input on those types of possible errors (see automatic conversion of distribution data to maps).

Retrieve Jepson Interchange Index to Plant Names entry for Lycopodium clavatum
Retrieve dichotomous key for Lycopodium
Overlay Consortium of California Herbaria specimen data by county on this map
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