Taxonomy, Demography and Status of Threatened Phlomoides superba (Royle ex Benth.) Kamelin & Makhm.

This study provides a comprehensive taxonomic, demographic, and status assessment of Phlomoides superba (Royle ex Benth.) Kamelin & Makhm., a perennial herb belonging to the tribe Phlomideae Mathieses. The taxonomic history, including the resurrection of the genus Phlomoides based on morphological and molecular studies is elucidated. Also, the growth and flowering phenology, pollination, and breeding mechanisms of P. superba are meticulously described. The species is characterized by its unique morphological features, including thick tuberous roots, bilipped yellow flowers, and trigonous nutlets. The study highlights the challenges faced by the species, including anthropogenic threats like over-exploitation for medicinal purposes, habitat loss due to road widening, and the impact of biotic factors such as insect infestation and grazing by wild animals. The threat status of P. superba is discussed, emphasizing the critical need for conservation efforts. The demography of P. superba is explored, with insights into its reproductive biology, seed set, and germination. The species exhibits poor sexual reproduction and seed germination in its natural habitat, prompting the exploration of alternative vegetative propagation methods. The study presents the successful use of tissue culture techniques for plant propagation and multiplication. Current population status reveals the existence of multiple populations, mitigating initial concerns about its extinction. The article concludes with the recommendation to reevaluate the conservation status of P. superba and underscores the importance of ongoing efforts to preserve this species.