Field notes, v1294
Page 201
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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.