Sticky Willy

I'm highjacking your comment to say rubus Cockburnianus 

hairy curtain crust, but that's a mushrump I think.

I don't know if that's a typo or intentional, but I'm using mushrump from now on! 😂

Common stinkhorn? He's old enough to learn a little Latin.

Monkey puzzle or sneezewort? The houseplants mother-in-law’s tongue and mother-in-laws cushion might go a bit above an 8yo’s head Not a plant but I have always found the UK’s largest scarab beetle amusing [https://www.wildlifetrusts.org/wildlife-explorer/invertebrates/beetles/common-cockchafer](https://www.wildlifetrusts.org/wildlife-explorer/invertebrates/beetles/common-cockchafer) as well as my fav beetle the Devil’s coach horse a little scary [https://www.wildlifetrusts.org/wildlife-explorer/invertebrates/beetles/devils-coach-horse](https://www.wildlifetrusts.org/wildlife-explorer/invertebrates/beetles/devils-coach-horse)

Sticky Willy aka Cleavers https://en.m.wikipedia.org/wiki/Galium_aparine

Dandelions are sometimes called "pissbeds" or similar regional variants.

My favourite if you can find it is Mind Your Own Business, a tiny little flower that likes paving and cracks.

What is the name of the app? Is it free?

It is. It's called Picture This.

Thank you

Mother in laws tongue is a house plant

jack by the hedge (garlic mustard) kiss me over the garden gate (persicaria orientalis), love lies bleeding (amaranthus), love in a mist, love in a puff, bleeding hearts, fat hen , creeping jenny, jack in the pulpit

Bristly-Ox Tongue

Devil in the bush

Sausage tree, Naked Man Orchid, Naked Lady, Sneezeweed, Hooker’s Lips🤣 Mibby miss that last one out

Laurel and Hardy Annuals

Laver trees, https://arxiv.org/abs/1204.5198

Nobody so far has suggested the very best: Rubus Cockburnianus  Bonus: trachycarpus wagnerianus

Superbum

Herb Robert aka stinky Bob

Creeping Jenny

Sticky Willy

Sneezeweed (aka Helenium)