diff --git a/app/javascript/vue/tasks/nomenclature/filter/components/FilterView.vue b/app/javascript/vue/tasks/nomenclature/filter/components/FilterView.vue
index d7fc2622bb..79d6f9409a 100644
--- a/app/javascript/vue/tasks/nomenclature/filter/components/FilterView.vue
+++ b/app/javascript/vue/tasks/nomenclature/filter/components/FilterView.vue
@@ -108,18 +108,19 @@ const WITH_PARAMS = [
   'data_attributes',
   'data_depictions',
   'depictions',
+  'leaves', // 'Descendants'
   'etymology',
   'global_identifiers',
-  'leaves',
+  'not_specified', // 'Incomplete combination relationships'
+  'latinized',
   'local_identifiers',
   'nomenclature_date',
-  'not_specified',
   'notes',
   'origin_citation',
   'original_combination',
   'otus',
   'tags',
-  'type_metadata',
+  'type_metadata', // 'Type information'
   'verbatim_name'
 ]
 
diff --git a/lib/queries/taxon_name/filter.rb b/lib/queries/taxon_name/filter.rb
index 99f2beefb0..f56063b345 100644
--- a/lib/queries/taxon_name/filter.rb
+++ b/lib/queries/taxon_name/filter.rb
@@ -24,6 +24,7 @@ class Filter < Query::Filter
         :descendants_max_depth,
         :epithet_only,
         :etymology,
+        :latinized,
         :leaves,
         :name,
         :name_exact,
@@ -264,6 +265,15 @@ class Filter < Query::Filter
       #   if 'false' then return only names with descendents
       attr_accessor :leaves
 
+      # @return [Boolean, nil]
+      #   &latinized=<"true"|"false">
+      #   if 'true' then return only genus group names with gender and species
+      #     group names with part of speech
+      #   if 'false' then return only genus group names without gender and
+      #     species group names without part of speech
+      #   if nil, ignore
+      attr_accessor :latinized
+
       # @return [String, nil]
       #   &taxon_name_type=<Protonym|Combination|Hybrid>
       attr_accessor :taxon_name_type
@@ -314,6 +324,7 @@ def initialize(query_params)
         @descendants_max_depth = params[:descendants_max_depth]
         @etymology = boolean_param(params, :etymology)
         @epithet_only = params[:epithet_only]
+        @latinized = boolean_param(params, :latinized)
         @geo_json = params[:geo_json]
         @leaves = boolean_param(params, :leaves)
         @name = params[:name]
@@ -562,6 +573,37 @@ def leaves_facet
         leaves ? ::TaxonName.leaves : ::TaxonName.not_leaves
       end
 
+      # @return Scope
+      def latinized_facet
+        return nil if latinized.nil?
+
+        tnc = ::TaxonNameClassification.arel_table
+        if latinized == true
+          # Note the query here does not restrict to genus/species groups - a
+          # genus whose rank is changed to subfamily can retain its gender,
+          # e.g., and we want to include those here.
+          ::TaxonName.where(
+            ::TaxonNameClassification.where(
+              tnc[:taxon_name_id].eq(table[:id]).and(
+                tnc[:type].in(LATINIZED_TAXON_NAME_CLASSIFICATION_NAMES)
+              )
+            ).arel.exists
+          )
+        else
+          ::TaxonName
+            .where(
+              table[:rank_class].in(GENUS_AND_SPECIES_RANK_NAMES)
+            )
+            .where.not(
+              ::TaxonNameClassification.where(
+                tnc[:taxon_name_id].eq(table[:id]).and(
+                  tnc[:type].in(LATINIZED_TAXON_NAME_CLASSIFICATION_NAMES)
+                )
+              ).arel.exists
+            )
+        end
+      end
+
       # @return Scope
       #   wrapped in descendant_facet!
       def taxon_name_relationship_facet(hsh)
@@ -844,12 +886,13 @@ def merge_clauses
           combination_taxon_name_id_facet,
           combinations_facet,
           descendant_facet,
+          latinized_facet,
           leaves_facet,
           not_specified_facet,
           original_combination_facet,
           otu_id_facet,
-          taxon_name_author_id_facet,
           otus_facet,
+          taxon_name_author_id_facet,
           taxon_name_classification_facet,
           taxon_name_relationship_type_facet,
           type_metadata_facet,
diff --git a/spec/lib/queries/taxon_name/filter_spec.rb b/spec/lib/queries/taxon_name/filter_spec.rb
index 3a9d6d3ebc..5e1d805d3d 100644
--- a/spec/lib/queries/taxon_name/filter_spec.rb
+++ b/spec/lib/queries/taxon_name/filter_spec.rb
@@ -121,6 +121,39 @@
     expect(query.all.map(&:id)).to contain_exactly(genus.id, root.id)
   end
 
+  context '#latinized' do
+    let!(:fem_genus) {
+      g = Protonym.create!(name: 'Rosa',
+        rank_class: Ranks.lookup(:iczn, 'genus'), parent: root)
+      TaxonNameClassification::Latinized::Gender::Feminine.create!(taxon_name: g)
+      g
+    }
+
+    let!(:fem_species) {
+      s = Protonym.create!(
+        name: 'blanda',
+        rank_class: Ranks.lookup(:iczn, 'species'),
+        parent: fem_genus
+      )
+      TaxonNameClassification::Latinized::PartOfSpeech::Adjective.create!(taxon_name: s)
+      s
+    }
+
+    specify '#latinized true' do
+      query.latinized = true
+      expect(query.all.map(&:id)).to contain_exactly(
+        fem_genus.id, fem_species.id
+      )
+    end
+
+    specify '#latinized false' do
+      query.latinized = false
+      expect(query.all.map(&:id)).to contain_exactly(
+        genus.id, original_genus.id, species.id
+      )
+    end
+  end
+
   specify "#nomenclature_group 1" do
     query.nomenclature_group = "Species"
     expect(query.all.map(&:id)).to contain_exactly(species.id)