Researchers from the Kunming Institute of Botany and the Xishuangbanna Tropical Botanical Garden of the Chinese Academy of Sciences have identified a new cryptic species of flowering plant. 

The new species belongs to the genus Pedicularis andwas found on Jiaozi Snow Mountain in north-central Yunnan. The researchers named it Pedicularis huiliniana and published their findings in Willdenowia on February 17.

Cryptic species, which are morphologically almost identical to their known relatives, represent a significant yet often overlooked component of global biodiversity.

P. huiliniana belongs to the P. siphonantha complex (Orobanchaceae), a group characterized by its distinctive red, purple, or pink long-tubular flowers with twisted, beaked upper lips (galeas). Although more than 11 species have been recognized within this complex, accurate identification has long posed a challenge, in part because key floral traits are often lost during herbarium specimen preparation.

To address this issue, the researchers coonducted phylogenetic analyses based on DNA regions including nrITS and matK, and made detailed morphological comparisons, ultimately confirming the existence of this new cryptic species.

P. huiliniana is a perennial herb, reaching approximately 10 centimeters in height. It bears rose-red corollas with tubes measuring 40 to 55 millimeters in length. While it closely resembles P. milliana, it can be distinguished by several defining features, including a relatively small middle lobe of the lower corolla lip, a flat lower lip, a deeper anterior cleft in the calyx, and a flattened beak structure.

Field observations indicate that the species is endemic to Jiaozi Snow Mountain in Dongchuan City, where it grows at elevations between 3,900 and 4,300 meters. This location marks a geographic isolation from the main distribution center of the genus in the Himalaya–Hengduan Mountains, a region hosting approximately two-thirds of the world's over 600 Pedicularis species.

Currently, P. huiliniana is only found in a few populations, found in scrub and meadow habitats above 4,000 meters on Jiaozi Snow Mountain. These populations face increasing threats from grazing, tourism development, and outdoor activities. Based on the IUCN Red List Categories, the researchers recommend listing the new species as Vulnerable.