Because my values are not able to pass the url?

My list:

<ion-list>
<ion-item ng-repeat="planta in listaPlantas" href="#/plantaEscolhida/{{planta}}"><i class="ion ion-leaf balanced"></i> {{planta.title.rendered}}
<p ng-bind="thisCanBeusedInsideNgBindHtml">{{planta.content.rendered}}</p>
</ion-item>
 </ion-list>

My Routes

value where this

.state("menu.listagem", {
url: '/listagem', 
views:{
   		'menuContent':{
   			templateUrl:'templates/listagem.html'
   		}}     
 })

values where go to get

.state("menu.plantaEscolhida", {
url: '/plantaEscolhida/:planta', 
views:{
  'menuContent':{
    templateUrl:'templates/plantaEscolhida.html'
  }}     
 })

Controller

angular.module('starter')
.controller('plantaEscolhidaController', function($scope, $stateParams, PlantaService){

	$scope.plantaEscolhida = $stateParams.planta;