Ask a Question forum: Plant Name Question

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Name: Rick
Longmont, Colorado USA (Zone 5b)
Sep 16, 2016 6:32 AM CST
What is the meaning of 'Monham P.P. #10128' in the plant name 'Parthenocissus quinquefolia 'Monham' P.P.# 10128'? I imagine Monham is the name of the plant breeder, but what does the number designate?

Thank you, RPV
Name: Jay
Nederland, Texas (Zone 9a)
Region: Texas Region: Gulf Coast Charter ATP Member I helped beta test the first seed swap I helped plan and beta test the plant database. I was one of the first 300 contributors to the plant database!
Celebrating Gardening: 2015 Plant Identifier Tip Photographer Garden Sages Garden Ideas: Master Level Hibiscus
Sep 16, 2016 8:40 AM CST
'Monham' is the cultivar name. P.P. I believe stands for patent pending, followed by the application number.

Name: Sue
Ontario, Canada (Zone 4a)
Daylilies Birds Enjoys or suffers cold winters Native Plants and Wildflowers Butterflies Annuals
Region: Canadian Keeps Horses Dog Lover Plant Identifier Garden Sages
Sep 16, 2016 9:37 AM CST
Welcome! Jay is correct that 'Monham' is the cultivar name. These are correctly indicated by the single quotes. The PP means the plant is patented and the number 10128 is the patent number. If it had only been applied for it would say PPAF (Plant Patent Applied For). According to the US Patent Office online database, this plant was patented in 1997 by Monrovia. The patent can be viewed here if the link will work:
Name: Rick
Longmont, Colorado USA (Zone 5b)
Sep 16, 2016 8:51 PM CST
Thank you Horntoad and Sooby. This answers my question precisely and completely. I am grateful to you. – RPV

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