Habitat: grassland and wodland
Substrate: moss and grass or leaf litter
Conservation Status: Not of concern
Clavaria fumosa has a similar habit, but is pale smoky brown or pinkish brown. Clavaria rubicudula is also similar, but is pale pinkish and less widespread. Clavaria actua is white, but smaller and it usually has a distinct, translucent white stem. It never forms large clusters, but grows singly or in small groups.
Sources: Roberts, Peter and Evans, Shelley. The Book of Fungi. Chicago, The University of Chicago Press, 2011.
PNW Herbaria: Specimen records of Clavaria fragilis in the Consortium of Pacific Northwest Herbaria database
CalPhotos: Clavaria fragilis photos