CAS - California Academy of Sciences Vascular Plants (CAS:BOT-BC)
57840
urn:catalog:CAS:BOT-BC:57840
urn:catalog:CAS:BOT:504135
Equisetum hyemale subsp. affine (Engelm.) Calder & Roy L. Taylor
Equisetaceae
Howell, John Thomas
32866
1957-08-05
Aug. 5, 1957
United States, California, San Francisco County, Strybing Arboretum, Golden Gate Park, San Francisco.
37.7684707642 -122.4694900513 +-335m. NAD27
Ridges on short, brown shoots with 2 rows of tubercles, on elongated green ones (which, however, represent only the upper portions od long shoots), width one row of tubercles. - P.Rubtzoff, Oct. 21, 1959.