Image from the Biodiversity Heritage Library.
Contributed by Museum of Vertebrate Zoology, University of California, Berkeley.
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Transcription
N.J. Francis
1963.
97.
Journal.
Aug. 13. Strawberry Canyon, Alameda County.
and set modified trap 1640. Ended
observations and entered pen for more
botanical specimens.
Aug. 14. The following plants are the
dominant green and actively growing
forbs in the pen:
Picris echinoide - Bristly Ox-tongue -
the most common weed, growing on
the remains of Medicago and Vicia patches.
Seeds are very small; do not appear to
provide quail food.
Madia sativa - Chile Tarweed.
Quite abundant, mixed with Picris;
seeds are large, at this stage still
held within the fruiting head.
Cirsium lanceolatum - Bull Thistle.
Also fairly common, and mixed
with the two preceding. Seeds small
and unavailable within heads.
Silybum marianum - Milk Thistle.
Few scattered plants, heads when
dry are very tough with strong stiff
spines enclosing seeds, which are
quite large, and used provide
a good supply of food, but are
unavailable until the dry heads
disintegrate.