How could one resist a wine district with its own dialect, Boontling, which, according to Wikipedia, is “now mostly spoken by ageing counter-culturists”? Its northern limit is known locally as “the deep end” and the district’s special, tiny, mint-scented flower, whose perfume some pick up in its wines, is called pennyroyal. But it wasn’t vocabulary that drew me to Anderson Valley in Mendocino County during a recent visit to northern California. It was the quality of its wines, especially its Pinot Noir.