I wasn't sure what you meant by INCI...i hope this what what you were looking for.

If you look here http://www.carrubba.com/pdf/Carrubba_Botanical_Guide_r.pdf
you can see a list of INCI names, and they generally include the species name of the plant from which the ingredient comes. The problem is that your 绿绒蒿 is a family, not a species, so I don't think the term as you've given it will have a single corresponding INCI term. We would need to know exactly which species of Meconopsis the extract came from.

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Note added at 3 days3 hrs (2011-10-18 02:40:39 GMT)
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Here's an answer! If you put 绿绒蒿提取物 into Google, all the references are to 五脉绿绒蒿, which is Meconopsis quintuplinervia. So your answer should be Meconopsis quintuplinervia extract. :)