| 31. | Its underside is smooth and its dorsal surface is densely covered with prickles.
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| 32. | Huixt�n in the Nahuatl language means " the place of the prickles ."
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| 33. | The plant is known for the sharp prickles on its stem and leaves.
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| 34. | It is a shrub with prickles on the stems.
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| 35. | "Smilax havanensis " is a perennial vine armed with prickles.
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| 36. | "Rubus miser " is an arching shrub with curved prickles.
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| 37. | Stems are purple, hairy and with relatively few, weak curved prickles.
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| 38. | "Rubus durus " is a reclining perennial with curved prickles.
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| 39. | "Rubus eggersii " is a reclining perennial with curved prickles.
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| 40. | Stems do not have prickles, but petioles do.
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