How much ditchweed did police confiscate in 2007? That would be anyone's guess.
Upon referencing Table 4.38 (Number of marijuana plants eradicated and seized, arrests made, weapons seized, and value of assets seized under the Drug Enforcement Administration's Domestic Cannabis Eradication/Suppression Program, by State, 2007) in the latest version of the Sourcebook of Criminal Justice Statistics, visitors will discover that the column that previously reported on "ditchweed" seizures (in prior years' tables, it was seventh column from the left) is now conspicuously missing.