In article ], Chris ]
writes

Now to the subject ... why are two apparently completely different
plants given the same name?
What on earth is there in common between Globe Artichokes and Jerusalem
Artichokes?

Following Dave's excellent description of Jerusalem artichokes;

Globe artichokes - Cynara scolymus, are 'real' artichokes. They are in
fact a cultivated variety of the common thistle. They are grown for
decorative purposes as well as for culinary use. Though they are fully
hardy, they are more popularly grown and used in Southern Europe where
the climate favours them better than in UK. Globes need plenty of
space, and they need to have well enriched soil if they are to produce
edible artichokes. They can be grown from seed or from root offsets
taken in autumn. They seldom produce useable artichokes in their first
year, then they will have 3 or 4 productive years before needing to be
replaced, or left to grow as a foliar and floral display.

The plants will grow to 6 or 7 ft. high and will develop big thistle
like heads. When the heads are fully developed, but before they begin to
harden ready to open as flowers, they are cut off for use. The artichoke
is the fleshy pad at the bottom of the leaves. They are a culinary
delight with a distinctive flavour and can be prepared in may ways.

Cardoons are another plant in the same family as Globe Artichokes. They
are grown for their leaves, stalks and midribs which are blanched during
growth. There are a number of other 'artichokes' grown, such as Chinese
Artichokes, Skirret etc.
--
Alan & Joan Gould, North Lincs.