Dendrolycopodium dendroideum

(Michaux) A. Haines

Treelike Clubmoss

G5Secure Found in 51 roadless areas NatureServe Explorer →
G5SecureGlobal Rank
Identity
Unique IDELEMENT_GLOBAL.2.158436
Element CodePPLYC010B0
Record TypeSPECIES
ClassificationSpecies
Classification StatusStandard
Name CategoryVascular Plant
KingdomPlantae
PhylumLycophyta
ClassLycopodiopsida
OrderLycopodiales
FamilyLycopodiaceae
GenusDendrolycopodium
Synonyms
Lycopodium dendroideumMichx.Lycopodium obscurum var. dendroideum(Michx.) D.C. Eat.
Other Common Names
Lycopode dendroïde (FR) round-branched tree-clubmoss (EN) Tree Clubmoss (EN) tree groundpine (EN)
Concept Reference
Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.
Conservation Status
Rank MethodExpertise without calculation
Review Date2016-05-16
Change Date1986-11-18
Range Extent Comments
Found from Alaska to Newfoundland and south to Washington, Montana, South Dakota, Illinois, and Tennessee. In Wyoming, disjunct populations occur in the Black Hills of Crook County.
Ecology & Habitat

Description

Treelike Clubmoss resembles a miniature coniferous tree. The scattered, branched stems are 12-30 cm high and arise from deep rhizomes. Stems and branches are densely clothed in 6-8 ranks of narrow, sharp-pointed leaves that are 2-5 mm long. The spores, each subtended by a broadly lance-shaped bract, or sporophyll, are 2-4 mm long and are borne in dense, cone-like, brownish, 2-4 cm long spikes located at the tips of erect branches.

Diagnostic Characteristics

In other members of the genus, the rhizome is located above or just beneath the surface of the ground. The appearance resembling a miniature evergreen tree is distinctive.

Habitat

This species is found in second-growth shrubby areas and dry woodlands at elevations ranging from 50 to 1,800 meters (Wagner Jr. and Beitel, 2020)
Terrestrial Habitats
Forest/WoodlandShrubland/chaparral
Other Nations (2)
CanadaN5
ProvinceRankNative
New BrunswickS5Yes
Nova ScotiaS5Yes
SaskatchewanS4Yes
AlbertaS4Yes
Island of NewfoundlandS4Yes
LabradorS4Yes
Yukon TerritoryS2Yes
Prince Edward IslandS5Yes
ManitobaS4Yes
Northwest TerritoriesSHYes
QuebecS5Yes
British ColumbiaS5Yes
OntarioS5Yes
United StatesNNR
ProvinceRankNative
MontanaS2Yes
VirginiaS3Yes
MassachusettsSNRYes
New JerseyS4Yes
South DakotaS4Yes
IllinoisS1Yes
North CarolinaS2Yes
AlaskaSNRYes
WisconsinSNRYes
ConnecticutSNRYes
OhioSNRYes
West VirginiaS4Yes
IowaS1Yes
WyomingS2Yes
MarylandSNRYes
New HampshireSNRYes
MichiganSNRYes
PennsylvaniaS5Yes
MaineSNRYes
IndianaS1Yes
TennesseeS1Yes
Rhode IslandSNRYes
New YorkS5Yes
MinnesotaSNRYes
IdahoS2Yes
VermontS5Yes
WashingtonS2Yes
MissouriS1Yes
Plant Characteristics
Economic Value (Genus)No
Roadless Areas (51)
Alaska (11)
AreaForestAcres
Behm IslandsTongass National Forest4,777
CastleTongass National Forest49,289
East MitkofTongass National Forest8,795
EudoraTongass National Forest195,022
GravinaTongass National Forest37,381
Green RocksTongass National Forest11,093
LindenbergTongass National Forest25,855
North EtolinTongass National Forest40,993
North RevillaTongass National Forest215,430
South KupreanofTongass National Forest216,816
South ZaremboTongass National Forest36,285
Maine (1)
AreaForestAcres
Caribou - Speckled ExtWhite Mountain National Forest5,988
Michigan (1)
AreaForestAcres
FibreHiawatha National Forest7,432
Minnesota (7)
AreaForestAcres
Baker - Homer - Brule LakesSuperior National Forest6,712
Brule Lake - Eagle MountainSuperior National Forest12,380
Cabin CreekSuperior National Forest6,071
Hegman LakesSuperior National Forest675
Kawishiwi Lake To SawbillSuperior National Forest15,305
Little Indian SiouxSuperior National Forest996
Phantom LakeSuperior National Forest6,521
Montana (1)
AreaForestAcres
Willard Estelle #173Kootenai National Forest3,714
New Hampshire (12)
AreaForestAcres
Carr MountainWhite Mountain National Forest17,110
Cherry MountainWhite Mountain National Forest8,766
Dartmouth RangeWhite Mountain National Forest9,233
Great Gulf Ext.White Mountain National Forest15,110
JobildunkWhite Mountain National Forest3,660
KilkennyWhite Mountain National Forest28,766
Kinsman MountainWhite Mountain National Forest8,999
PemigewassetWhite Mountain National Forest32,255
Pemigewasset ExtWhite Mountain National Forest15,840
Presidential - Dry River ExtWhite Mountain National Forest10,555
Sandwich RangeWhite Mountain National Forest16,797
Wild RiverWhite Mountain National Forest46,878
Pennsylvania (1)
AreaForestAcres
Tracy RidgeAllegheny National Forest9,034
Vermont (2)
AreaForestAcres
Bread LoafGreen Mountain and Finger Lakes National Forests1,768
Wilder Mountain 09082Green Mountain and Finger Lakes National Forests8,759
Virginia (3)
AreaForestAcres
Laurel ForkGeorge Washington National Forest9,967
SkidmoreGeorge Washington National Forest5,641
Three RidgesGeorge Washington National Forest4,745
Washington (2)
AreaForestAcres
Mt. Baker Noisy - DiobsudMt Baker-Snoqualmie National Forest56,039
Mt. Baker WestMt Baker-Snoqualmie National Forest25,390
West Virginia (7)
AreaForestAcres
Canaan LoopMonongahela National Forest7,867
Cranberry AdditionMonongahela National Forest11,123
Cranberry Glades Botanical AreaMonongahela National Forest785
East Fork Of GreenbrierMonongahela National Forest7,167
Falls Of Hills CreekMonongahela National Forest6,925
Little MountainMonongahela National Forest8,172
Mcgowan MountainMonongahela National Forest10,504
Wisconsin (3)
AreaForestAcres
09011 - Flynn Lake Study AreaChequamegon-Nicolet National Forest5,951
09154 - St. Peters DomeChequamegon-Nicolet National Forest4,002
09177 - Le Roy CreekChequamegon-Nicolet National Forest8,138
References (3)
  1. Kartesz, J.T. 1994. A synonymized checklist of the vascular flora of the United States, Canada, and Greenland. 2nd edition. 2 vols. Timber Press, Portland, OR.
  2. Petlewski, A.R., D.A. Hauser, M. Kim, J. Schmutz, J. Grimwood, and F.-W. Li. 2022. Re-evaluating the systematics of <i>Dendrolycopodium </i>using restriction-site associated DNA-sequencing. Front. Plant Sci. 13: 1-10.
  3. Wagner Jr., W.H. and J.M. Beitel. 2020. Flora of North America. <i>Lycopodium dendroideum</i>. Accessed: September 20, 2022. http://floranorthamerica.org/Lycopodium_dendroideum