Flat-branched Tree-Clubmoss- (Dendrolycopodium obscurum)

Growing on a forested ridgeside near the Natchaug River.

comments (9)

Christine Young

Lion

They seem synonymous, but I think this should be listed as Lycopodium obscurum according to this:

"The genus Dendrolycopodium is accepted in the Pteridophyte Phylogeny Group classification of 2016 (PPG I),[15] but not in other classifications, which submerge the genus in Lycopodium".

What do you think? Posted 3 years ago
1. Christine Young
  
  Lion
  
  Or, should it be Dendrolycopodium as I see it listed that way on iNat?? Posted 3 years ago
2. 1. Christine Young
    
    Lion
    
    More info:
    https://plants.ces.ncsu.edu/plants/lycopodium-obscurum/
    https://www.itis.gov/servlet/SingleRpt/SingleRpt?search_topic=TSN&search_value=17032#null
    https://plants.usda.gov/home/plantProfile?symbol=LYOB Posted 3 years ago
  2. 1. Christine Young
      
      Lion
      
      I switched the ID to Lycopodium since we already have one IDed as such on JD. We can decide on the correct genus still, though. Posted 3 years ago
    2. 1. Flown Kimmerling
        
        Lion
        
        I'm not sure which is up to date. I'd have to check on the plant forums on FB probably. I know iNaturalist does go with Dendrolycopodium, and they usually defer to multiple sources :
        https://www.inaturalist.org/taxa/204198/taxonomy_details
        
        I'll check with Weakley's key and see what he has to say. Posted 3 years ago
      2. Christine Young
        
        Lion
        
        Okay, cool...It seems mixed. I'm not sure which is currently correct.
        Posted 3 years ago
        
        Flown Kimmerling
        
        Lion
        
        Looks like Weakley and many of my other plant expert friends are calling it Dendrolycopodium obscurum. It must have been separated out genetically in recent years. Posted 3 years ago
        
        Flown Kimmerling
        
        Lion
        
        Lycopodium clavatum and Lycopodium lagopus remain.
        
        https://gobotany.nativeplanttrust.org/family/lycopodiaceae/ Posted 3 years ago
        
        Christine Young
        
        Lion
        
        Okay...I will re-identify them all...We can always change it back when/if the taxonomy changes! Posted 3 years ago

The Rare Clubmoss

"Dendrolycopodium obscurum", synonym "Lycopodium obscurum", commonly called rare clubmoss, ground pine, or princess pine, is a North American species of clubmoss in the family Lycopodiaceae. It is a close relative of other species such as "D. dendroideum" and "D. hickeyi", also treelike.

Info 7 0

Similar species: Lycopodiales

Species identified by Christine Young