Potassium in soil helps plants have stronger stalks and be more immune to crop disease.
Dried Wheat Stalks are called 'straw'
sepals
Fodder
Celery stalks should not be fed to horses. The strings get it stuck between their teeth and it can cause gum disease! Celeriac, being a root vegetable, would be outside a horses normal forage. If you a serious about trying it consult with you vet.
haulm
zooids
corn
Antennea's they are on stalks, like a bugs.
external gill stalks
straw
The ansawer is called covering.