SDSU - Vascular Plants of the San Diego State University Herbarium (SDSU)
SDSU03946
3ca38c7b-9719-4170-b197-518a68a18afc
03946
Equisetum hyemale subsp. affine (Engelm.) Calder & Roy L. Taylor
Equisetaceae
Scott C. McMillan (1994-09-01)
The Jepson Manual , 1993, Hickman ed. (based on listed synonymy only; not verified from morphological study.)
Show Determination History
Hide Determination History
Copeland, E. B.
734
1929-06-06
06/06/1929
United States, California, Butte, Jonesville.
40.112844 -121.46867 +-3137m. WGS84
On and near rocky creek-banks; common but not abundant. Inconstant in characters supposed to mark the variety and to distinguish E. robustum A. Br. as a species. Theses are usually two rows of tuberless. “Rosettes” are present, but may be evident or obsolete, and the groove in the sheath-teeth may be evident or obsolete.