Tag Archives: Erigeron

Erigeron adscendens Turcz.

Napo Fleabane (Erigeron adscendens)

The Napo Fleabane was described in 1851, the species was only ever found once, growing in wet wasteland at an elevation of 4000 to 4500 m somewhere at the foothills of the Antisana volcano in the Napo Province of Ecuador.

The species was never found since and might well be extinct.


edited: 09.09.2019

Erigeron mariposanus Congdon

Foothill Fleabane (Erigeron mariposanus)  

The Foothill Fleabane is known only from material that was collected during the years 1892 to 1900, somewhere at the foothills of the central Sierra Nevada Mountains in Mariposa County of California, USA.  

The species was for some time treated as a synonym of Hartweg’s Fleabane (Erigeron foliosus var. hartwegii (E. Greene) Jepson), from which, however, it differs markedly.  

The Foothill Fleabane is thought to be extinct, the reasons for this, however, appear to unknown. [1]  



[1] Guy L. Nesom: Revision of Erigeron sect. Linearifolii (Asteraceae: Astereae). Phytologia 72 (3): 157-208. 1992  


edited: 09.09.2019