It ends at Stoke Canon where it meets the river Exe.
Bishopric of Culm - Chełmno - was created in 1243.
Culm Valley Light Railway was created in 1873.
Culm Valley Light Railway ended in 1880.
The answer is culm.
The grass stem bearing an inflorescence is called culm. It can be seen in wheat, barley, paddy and in many wild grasses.
culm
Roger Crombleholme has written: 'Birmingham Railway Museum guide book' -- subject(s): Birmingham Railway Museum 'The Culm Valley Light Railway' -- subject(s): Culm Valley Light Railway 'Callington railways' 'The Culm Valley light railway, by Roger Crombleholme, Douglas Stuckey [and] C. F. D. Whetmath'
A river can be as long as a country! For example the Mississippi River is almost as long as the U.S vertically.
The river Alt is 28kilometers long.
The Charles River is about 81mi long.
The Missouri River is 2,341 miles long and is the longest tributary to the Mississippi River.