Coefficient of Conservatism:
Coefficient of Wetness:
A. A. Reznicek
Shrubs of this familiar yellow-flowered Forsythia spread vegetatively from cultivation, and are barely established around old homesteads, and along roads and fencerows where garden refuse may have been dumped. First collected in 1965 in Van Buren Co. All the commonly cultivated Forsythias are introduced from eastern Asia.
This mounding shrub with arching branches is one of the commonest species grown, and has the pith chambered between the nodes and solid at the nodes. In addition, several others are cultivated and may escape. The commonest are Forsythia suspensa, the Weeping Forsythia, with ± pendulous branches, three lobed or trifoliate leaves on vigorous shoots, and pith of year old twigs hollow throughout and F. viridissima, the Green-stemmed Forsythia, with pith chambered throughout and simple leaves.