If you know the genus and species of this month’s mystery plant, you could win a free one-year subscription to Fine Gardening . Send your entry, along with your complete mailing address, by December 31st to [email protected] . The winner will be chosen at random from all correct entries.

It took two months to get a correct answer to the last Mystery Plant! We really stumped you this time, but a few gardeners persevered and managed to identify this fascinating plant. It’s Amicia zygomeris , a perennial native to Mexico. This plant grows to 7 feet tall and 4 feet wide and has oddly shaped, glaucus leaves flanked by purple-tinged leaflets. Yellow, pealike flowers appear in autumn. Amicia prefers full sun and fertile, well-drained soil and is hardy in USDA Hardiness Zones 8 to 10. Sharlene Lazin of Blaine, Washington , was chosen at random from all correct entries to receive a free one-year subscription to Fine Gardening . Congratulations, Sharlene!