Recollection of One‐Leaved Henckelia monophylla Endemic to Arunachal Pradesh, India Along With Its Typification and Notes on Conservation

Key Points

• This research aims to recollect and typify Henckelia monophylla, assessing its conservation status after nearly 190 years.
• Identification of previously collected specimens.
• Designation of a second-step lectotype.
• Discussion of conservation status and threat assessment.
• Henckelia monophylla was recollected after 189 years since its last observation.
• A specimen was designated as the second-step lectotype.
• Conservation status and potential threats to the species were identified.