Frangula purshiana subsp. anonifolia

(Greene) J. O. Sawyer & S. W. Edwards

Madroño 54: 173. 2007. (as annonifolia)

Endemic
Basionym: Rhamnus anonifolia Greene Pittonia 3: 16. 1896
Synonyms: Rhamnus purshiana var. anonifolia (Greene) Jepson
Treatment appears in FNA Volume 12. Treatment on page 57.

Plants 1–5 m, usually treelike. Twigs red to brown, glabrescent. Leaves deciduous; blade widely elliptic or obovate, 6–15 cm, herbaceous, base usually cuneate, margins irregularly toothed or entire, apex obtuse to truncate, surfaces not papillate, sparsely hairy or glabrous, not glaucous adaxially when fresh.


Phenology: Flowering Mar–Jun.
Habitat: Coniferous forest edges, stream banks, non-serpentine substrates.
Elevation: 1000–2000 m.

Discussion

Selected References

None.

Lower Taxa

None.
John O. Sawyer† +  and Guy L. Nesom +
(Greene) J. O. Sawyer & S. W. Edwards +
Rhamnus anonifolia +
Calif. +  and Oreg. +
1000–2000 m. +
Coniferous forest edges, stream banks, non-serpentine substrates. +
Flowering Mar–Jun. +
Rhamnus purshiana var. anonifolia +
Frangula purshiana subsp. anonifolia +
Frangula purshiana +
subspecies +