This section is from the book "Handbook Of Hardy Trees, Shrubs, And Herbaceous Plants", by W. Botting Hemsley. Also available from Amazon: Handbook of hardy trees, shrubs, and herbaceous plants.
Allied to the last genus, but differing in the structure of its fruit. Also large plants with ornamental foliage. There are about fifty species, nearly all in the north temperate zone. H. Sphondylium is the Common Hogweed or Cow Parsnip. Named after Hercules,
1. H, flavescens, syn, H. Austriacum (fig. 114). - This species has the foliage more deeply cut than in the native species. Besides this there are several species or varieties in cultivation, but there is much confusion amongst the names: H. eminens, giganteum, Persicum, asperum, and Panaces amongst others. They grow from 6 to 12 feet high, and bear truly enormous umbels containing thousands of flowers, and are very striking objects.
Fig. 114. Heracleum flavescens.
Other members of this order, noteworthy for their ornamental foliage, are : Archangelica atropurpurea, Molopo-spermum cicutdrium, Ndrthex Asafcetida, Smyrnium spp., Silaus spp., Meum athamanticum, etc.