[PCA] Hint in article that Wildflowers Declined, because of weeds?

[Craig Dremann]

Dear All,

The sentence in the story, "Many of the gainers have been weedier
mustards and knotweeds, along with various non-native species" may
indicate that it was mainly exotic weed invasions that wiped out most of
the wildflowers, not the global warming?

Sincerely,  Craig Dremann, Redwood City, CA (650) 325-7333