Verloove, Filip. “Physalis Ixocarpa Brot. Ex Hornem. And Verbena Litoralis Kunth, New Spanish Xenophytes and Records of Other Interesting Alien Vascular Plants in Catalonia (Spain)”. Lazaroa 24 (January 1, 2003): 7–11. Accessed January 8, 2026. https://revistas.ucm.es/index.php/LAZA/article/view/LAZA0303110007A.