Experimental removal of flower heads of Taraxacum officinale (Common Dandelion) tested whether the presence of these showy yellow flowers affected seed production of Delphinium nuttallianum in natural populations where both species are visited by native bumble bees. Seed production per flower and per plant was independent of dandelion flower presence in the experimental plots. There was no indication of competition for pollination between the two plant species.
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The American Midland Naturalist
Vol. 151 • No. 2
April 2004
Vol. 151 • No. 2
April 2004