"Nature's beauty cannot be expressed more perfectly than in its flora."(from the description of this section)
IMO this statement is too restrictive, and, because lichen ("lichens" is also an accepted plural designation) are often mistaken for plants, I shall, absent objection, post occasional images of lichen here.
The rocks upon which these colorful lichens grow are "glacial erratics". Boulders scraped up from the Canadian shield or further north and carried south by the last glacial expansion. Those boulders from the far north were left on the floor of a scraped valley in what is now Harding County , South Dakota, when that last (for now) glacier melted and receded to the North some 10,000 to 11,000 years ago...give or take a millennium. The newly exposed boulders quickly became substrate for lichen colonization. Lichen of different sorts have since then been competing for territory on the boulders' exposed surfaces. For a time the ancestors of these very lichen served as food for the reindeer of the tundra that followed the receding glacier northward. The lichen's processes of invasion, defeat of the locals, colonization, and later succumbing to being locally invaded by another neighboring colony on the boulder is an incredibly accurate recapitulation of the history of expansion, migration, invasion, and re-settlement of different sub populations of our own species in and from Africa, where we evolved, to ultimately cover the rest of the Earth save for Antarctica.
Lichen are far older than our species. They are symbionts - fungal organisms containing different sorts of algae and/or cyanobacteria...the latter being among the earliest forms of cellular life to have appeared on our planet.
And, to my eye, many lichen rightly take their place as things of beauty right alongside any flower blossom one might place in competition.
Egad....did I get carried away? Guess so....
Presenting: a few scenes from a multi-act, continuing lichen performance entitled: "The Territorial Imperative"