RSA - California Botanic Garden Herbarium (RSA:RSA)
5da09672-acc5-4f39-a0e0-c7fc67540e59
747096
Conium maculatum L.
Apiaceae
A. C. Sanders
36835
2009-05-19
T. B. Salvato
United States, California, Los Angeles, Montebello Hills, under SCE powerlines S of Montebello Blvd. and W of Plaza Dr., S of large shopping mall called Montebello Town Center; El Monte 7.5’
34.0336111 -118.085 +-1000m.
1000; 1000
110-137 meters
360-450ft.
Working oil field with access roads and scattered pump pads. Hillsides, mostly loam over sandstone with cobbles; very dense, c. 1.5 m tall, coastal sage scrub with Eriogonum fas., Baccharis pil., Artemisia cal., Encelia far., etc. and taller plants of Sambucus mex., Heteromeles, etc. At least partially (perhaps entire area) “revegetated” from severe disturbance a few decades past; almost no native annuals, no bulb plants, no Marah, scant Opuntia.
Fairly common annual to 2 m tall, in open areas esp. moist N-facing slopes; fls. white. Forming dense local colonies, many dead stems from last year.