Are these tails from the same kind of horses ?

Taken in Garry Point Park, Richmond, this morning.
Are there two kinds of tails here ?

 

the first picture shows the reproductive spore bearing stalk. it is called a strobili (the conelike part at the top). the second is a new vegetative stalk that will open up to be picture 3

 

Thanks a lot. That clears up my long standing puzzle.

 

Pic #2 had two species; the thick stems with dark brown scale leaves and just starting to expand are Equisetum telmateia, the slender stems more fully expanded are Equisetum arvense.

Pic #1 also has Equisetum arvense shoots, this time with strobili of Equisetum telmateia.

Pic #3 is all Equisetum arvense.

 

Thanks Michael.