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Mason Neck National Wildlif... (Google, OSM) Details Hide details
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Comments & Identifications

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princess pine - Photo (c) djpmapleferryman, some rights reserved (CC BY)
muir's ID: princess pine (Lycopodium obscurum [inactive]) (inactive taxon)
Posted by muir over 3 years ago (Flag)
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There is a mix of two species... the large and smaller middle image are the same (Lycopodium obscurum ---pretty sure that is right) and the other two are Diphasiastrum digitatum

Posted by botanygirl over 3 years ago (Flag)
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Thanks! How do you tell them apart?

Posted by muir over 3 years ago (Flag)
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Diphasiastrum digitatum is (dorsally?) compressed, giving the leaflets a flattened, glabrous appearance, whereas Lycopodium looks fuzzier and more erect, more pine-like.

There are a number of Lycopodium species in North America, so you might try narrowing it down with USDA PLANTS. eFloras has as decent key at http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=119159

Posted by kueda over 3 years ago (Flag)
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princess pine - Photo (c) djpmapleferryman, some rights reserved (CC BY)
muir's ID: princess pine (Dendrolycopodium obscurum) Added as part of a taxon swap
Posted by muir over 2 years ago (Flag)
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princess pine - Photo (c) djpmapleferryman, some rights reserved (CC BY)
muir's ID: princess pine (Dendrolycopodium obscurum) Added as part of a taxon swap
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