What steam? All stens grow at diffrent rates...
stem don't grow a stem is a tree never will grow agin
it takes three whole days.
Yes it can grow from stem cuttings
Yes , it can grow through stem cutting.
To find pictures of plants that grow from stems you can type that description into Google Images. The rose is one plant that can grow from a stem.
Stalk
long stem
Branches grow from the stem,in an odd way.
Pumpkins grow from seeds, but they do have a stem as well.
seads, roots, and in "talk" add one more letter
If you put a cut stem in the soil, it is unlikely the sunflower would grow. It would need to grow from seed.
Stem cells