diff --git a/frontend/src/app/search-taxonomy/taxonomy-autocomplete.component.html b/frontend/src/app/search-taxonomy/taxonomy-autocomplete.component.html
index 37bd01b0..9b26e504 100644
--- a/frontend/src/app/search-taxonomy/taxonomy-autocomplete.component.html
+++ b/frontend/src/app/search-taxonomy/taxonomy-autocomplete.component.html
@@ -1,34 +1,3 @@
-<div [(ngbCollapse)]="isCollapseTaxonomy">
-  <div class="well well-sm well-margin">
-    <div class="row">
-      <div class="col-xs-12 col-sm-12 col-md-6 col-lg-6">
-        <small class="font-sm">Règne:</small>
-        <select [formControl]="regneControl" class="form-control form-control-sm">
-          <option *ngFor="let regne of regnes" [value]="regne">{{ regne }}</option>
-        </select>
-      </div>
-      <div class="col-xs-12 col-sm-6 col-md-6 col-lg-6">
-        <div *ngIf="regneControl.value !== null">
-          <small class="font-sm">Groupe:</small>
-          <select
-            [formControl]="groupControl"
-            class="form-control form-control-sm"
-            id="sel1"
-            placeholder="Taxonomiques"
-          >
-            <option
-              class="clickable"
-              *ngFor="let group2 of regnesAndGroup[regneControl.value]"
-              [value]="group2"
-            >
-              {{ group2 }}
-            </option>
-          </select>
-        </div>
-      </div>
-    </div>
-  </div>
-</div>
 <h5 > {{ label }} </h5>
 <div class="input-group">
   <input
@@ -49,18 +18,8 @@ <h5 > {{ label }} </h5>
     [required]="isRequired"
     [placeholder]="placeholder"
   />
-  <div class="input-group-append" *ngIf="displayAdvancedFilters">
-    <button
-      (click)="isCollapseTaxonomy = !isCollapseTaxonomy"
-      [attr.aria-expanded]="!isCollapseTaxonomy"
-      class="btn btn-sm btn-outline-shadow"
-      matTooltip="Filtrer les taxons proposés à l'autocompletion  par règne et groupe INPN"
-    >
-      <i class="fa fa-filter" aria-hidden="true"></i>
-    </button>
   </div>
-
-  <ng-template #rt let-r="result" let-t="term">
+ <ng-template #rt let-r="result" let-t="term">
     <span [innerHTML]="r.search_name"> </span>
   </ng-template>
 </div>
diff --git a/frontend/src/app/search-taxonomy/taxonomy-autocomplete.component.ts b/frontend/src/app/search-taxonomy/taxonomy-autocomplete.component.ts
index 073346d9..d63673fd 100644
--- a/frontend/src/app/search-taxonomy/taxonomy-autocomplete.component.ts
+++ b/frontend/src/app/search-taxonomy/taxonomy-autocomplete.component.ts
@@ -65,23 +65,15 @@ export class SearchAutocompleteTaxonomyComponent implements OnInit, OnChanges {
     // ** Pour changer la valeur affichée */
     @Input() displayedLabel = 'nom_vern';
     /** Afficher ou non les filtres par regne et groupe INPN qui controle l'autocomplétion */
-    @Input() displayAdvancedFilters = false;
     @Input() isRequired = true;
     @Input() placeholder = '';
     isInvalidDirty = false;
-    searchString: any;
-    filteredTaxons: any;
-    regnes = [];
-    regneControl = new FormControl(null);
-    groupControl = new FormControl(null);
-    regnesAndGroup: any;
     noResult: boolean;
     isLoading = false;
     @Output() onChange = new EventEmitter<NgbTypeaheadSelectItemEvent>(); // renvoie l'evenement, le taxon est récupérable grâce à e.item
     @Output() onDelete = new EventEmitter<TaxonBase>();
     @Output() emptyInput: EventEmitter<boolean> = new EventEmitter<boolean>();
-
-    public isCollapseTaxonomy = true;
+    
     public config = MainConfig;
     constructor(private _dfService: DataFormService) {}
 
@@ -113,23 +105,6 @@ export class SearchAutocompleteTaxonomyComponent implements OnInit, OnChanges {
                     this.onDelete.emit();
                 }
             });
-
-        if (this.displayAdvancedFilters) {
-            // get regne and group2
-            this._dfService.getRegneAndGroup2Inpn().subscribe((data) => {
-                this.regnesAndGroup = data;
-                for (const regne in data) {
-                    this.regnes.push(regne);
-                }
-            });
-        }
-
-        // put group to null if regne = null
-        this.regneControl.valueChanges.subscribe((value) => {
-            if (value === '') {
-                this.groupControl.patchValue(null);
-            }
-        });
     }
 
     ngOnChanges(changes) {
@@ -184,8 +159,6 @@ export class SearchAutocompleteTaxonomyComponent implements OnInit, OnChanges {
                 if (search_name.length >= this.charNumber) {
                     return this._dfService
                         .autocompleteTaxon(this.apiEndPoint, search_name, {
-                            regne: this.regneControl.value,
-                            group2_inpn: this.groupControl.value,
                             limit: this.listLength.toString(),
                         })
                         .pipe(