Emergency Field Medicine!

Ollie waited, somewhat impatiently, for his first student to arrive. His tail swished behind him in excitement and nervousness as they each started appearing.
First was his new flatmate, Sen!
"Hey Sen!" He greeted, "I'll tell ya when a few more arrive, I'm grateful you're here!" He replied, trying desperately to keep his toes from dancing on the spot.
Next his twilight enshrouded cousin stepped in and admitted this wasn't her usual forte.
"Still glad you could join us, Tethys! I think you'll appreciate it." He said just as Wilder arrived and mentioned something to Tethys! Oooo, interesting! Did they know each other already? Excellent.

The new apprentice requested that he relate the lesson for something he could relate to.
"That's the idea, Wilder! Glad you could join! I'll get started." He said and straightened up.

"So, what you see here are several very common weeds that should be easy to find from the forested tip of Boreas to the southern tip of Auster and should be fairly prevalent everywhere in between. They grow in all kinds of conditions and are great to use when you're in a pinch. Let's say you're traveling or hunting far from here and you get into some trouble. Like, getting in a scrape with a cat, falling off a wall, or getting the unfortunate kick or bite from your prey. And you're far from anyone else who might hear your call to aid you. I want you to take careful stock of these herbs because they will all help keep you alive until you can get more experienced help, or just want to take care of a small annoyance by yourself."

He picked up the feathery leafed yarrow and presented it to his students to pass around.
"This one is called Yarrow. Note the fine feathery leaves and the bunch of small flowers on top. You should be able to identify this before it even starts flowering. This will save your life if you're ever in a place where you are bleeding badly. When you need to use it, crush whatever of the plant you can grab and stuff it into the bleeding wounds. Chewing it into a paste and spitting it into the wounds is best. It'll stop any excessive bleeding. And you can chew and swallow it even if you're also expelling blood from either end."

Then he picked up the rigid Horestail plant which could look similar but the feathery stalk was very different from the Yarrow and had no flowers. He gave it to his students to observe as well after taking the yarrow plant back.
"Here's the Horsetail plant. There are two types, one that grows close to marshes and one that grows in open dry fields. They look very similar to each other but it is important to know the difference when you're bleeding internally, or having a hard time peeing. You can eat the field horsetail for those problems without any issues but only use the marsh horsetail from the wet areas externally, like crushing into your wounds to stop wounds from bleeding. You can use both horsetails to stop bleeding externally. Questions so far?" He asked. Hoping it was becoming obvious to all of them how learning about these could be essential to their survival on expeditions away from home.

"Speech"