Heads up: When you commit this change, identifications will be re-assigned to the output taxa based on their atlases. If some or all of the outputs lack atlases, or if atlases overlap for a given record, identifications will be replaced with identifications of the nearest common ancestor taxon ( Urtica)

Taxonomic Split 109956 (Draft)

U. d. subsp. gracilis was recently carved off into U. gracilis: https://www.inaturalist.org/taxon_changes/75501

see discussion at https://www.inaturalist.org/flags/559292

Please use flag space and not the comment section below, so as not to divide the discussion into multiple locations. Thanks!

Differences, per Henning et al. 2014 "Weeding the Nettles II: A delimitation of “Urtica dioica L.” (Urticaceae) based on morphological and molecular data, including a rehabilitation of Urtica gracilis Ait." & Weakley 2022

and see atlases for notes on known distribution

U. gracilis (slender stinging nettle) U. dioica sensu stricto (European stinging nettle)
stems usually upright, erect, less branched stems usually weak, sprawling, branching
stems hairless to puberulent or strigose, lacking (or nearly so) stinging hairs stem strongly hispid with stinging hairs
leaf blades hairless or glabrescent above (lacking stinging hairs leaf blades strongly hispid with stinging hairs on both surfaces
leaf teeth commonly 2 to 3.5 mm long leaf teeth commonly 5 to 6 mm long
mostly monoecious (male and female flowers on the same plant, usually with female flowers near the bottom/tip with male in the middle mostly dioecious (male and female flowers on separate plants), but some plants monoecious
branching of aerial shoot rare branching of aerial shoot common late in season
achenes suborbicular with a rounded base and tip achenes ovoidal with a narrowed base and tip; widest below the middle
short stolons, mostly long stolons
POWO (Citation)
Added by bouteloua on April 24, 2022 01:50 AM
split into

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here: https://www.inaturalist.org/flags/559292

Posted by bouteloua 13 days ago

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