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| habit--Rubus trivialis is a vine | leaf--what kind of leaf complexity is shown here? what kind of leaf margin? |
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| stems - the stems have prickles that are retrorse (pointing downward). They also have slender bristles scattered amongst the prickles. | flower--notice how the petals are crumpled like paper. Are the petals free or fused? |
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| flower closeup--see how numerous the stamens are? This is a common characteristic of the Rosaceae. | |
