Dendrolycopodium dendroideum (Michx.) A. Haines - Prickly Tree Clubmoss


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Dendrolycopodium dendroideum - (image 1 of 4)



Family: Lycopodiaceae


Dry woods and second growth shrubby areas.




Across middle and southern Canada to AK, south to NY and PA, northern OH, northern IN, northern IL, WI and MN, and south through the Appalachians.


Low evergreen from deeply buried, horizontal stems, erect stems to 30cm high, tree-like with many forked, terete branches. Leaves linear, acute, 3-5mm long, in 6 ranks evenly spaced around the stem, the lower leaves of the stem spreading, prickly. Cones (strobiles) to 6 cm long, terminal, sessile, solitary or in groups of 2-7.


Produces spores from late August to mid November.

Wetland indicator: FAC

The branchlets of this species are rounded in cross section. It is similar to D. hickeyi which has more appressed lower stem leaves.   


Haines, A. 2011. Flora Novae Angliae: a manual for the identification of native and naturalized higher vascular plants of New England. Yale University Press, New Haven, CT.


Wagner, W.H. Jr. and Beitel, J.M. 1993. Lycopodiaceae. In: Flora of North America North of Mexico, Vol. 2.

Oxford University Press, New York and Oxford.




 Michael Hough 2018