Pluchea glutinosa explained

Pluchea glutinosa was a species of flowering plant in the sunflower family that was endemic to the Island of Socotra in the Indian Ocean, part of the Republic of Yemen.^{[1] [2]}

The plant has not been observed in the wild since the 19th Century and is presumed extinct.

Notes and References

1. https://www.biodiversitylibrary.org/page/180995#page/386/mode/1up Baker, John Gilbert. 1890. Journal of the Linnean Society, Botany 25: 327-328
2. http://www.tropicos.org/Name/2725729 Tropicos, Pluchea glutinosa (DC.) Bojer ex Baker