RSA - California Botanic Garden Herbarium (RSA:RSA)
RSA0127479
eac7672a-e8f4-43b6-870a-7e16a53914aa
866430
Carduus pycnocephalus L.
Asteraceae
R. G. Swinney
16525
2014-05-15
United States, California, Los Angeles, San Gabriel Mountains. Azusa Peak, 0.06 miles s. of Glendora Ridge Mtwy., 1.34 mi. due east of Hwy. 39, 0.15 miles e. of north Garcia Trailhead, in Colby Fire burn area of Jan. 2014.; Azusa
34.15611 -117.88833
625-63 meters
2051-2081ft.
Colby Fire burned the southern 3/4 of the peak area, all plants below burn area, all plants here collected in the burn area, ridgetop, firebreak runs through the middle of the peak, disturbed grassy area in the southern portion, far n. area of peak was unburned, singed Quercus agrifolia agrifolia in the north portion of peak, formerly coastal sage scrub and chaparral, now with perennial seedlings, annuals and resprt. perennials.
Dominants include Marah macrocarpa, Bromus diandrus, Avena barbata, Calystegia macrostegia ssp. arrida, Centauria mellitensis, and Erodium botrys, with Acmsipon maritimus, Lupinus hirsutissimus, L. sparsiforus, L. bicolor, L. succulentus, Carduus pycnocephalus, Amorpha californica, Solanum douglasii, Stellaria media, and etc.