Vernal pools at Enchanted Rock

Enchanted Rock is known for its vernal pools, shallow depressions in the stone where water accumulates and fosters plant life. In past years I’ve seen water in some of the vernal pools there, but on April 12th all the ones I noticed had no water standing in them. That didn’t mean there wasn’t residual moisture that plants were still taking advantage of. In the first picture you see a closeup of a vernal pool only a few inches across filled with stonecrop plants (Sedum nuttallianum).

The middle picture shows a much larger vernal pool with plenty of lush vegetation in it. The flowers are spiderworts (Tradescantia sp.) and the cacti are prickly pears (Opuntia engelmannii). Below, notice how a bunch of vernal pools had obligingly lined up.

Two days ago I posed a few questions. Robert Parker proved by his answers that he’d been holding out on us and that he’s really Mr. World Geography.

Which river touches the most countries? It’s the Danube, which borders or passes through 10 countries: Germany, Austria, Slovakia, Hungary, Croatia, Serbia, Bulgaria, Romania, Moldova, and Ukraine, in that order. The river that touches the next highest number of countries is the Nile, with 9.

Which country is the least densely populated? It’s Mongolia, with not quite 2 people per square kilometer. Greenland (whose name is misleading because it’s largely covered with ice) has a significantly lower population density but it’s not an independent country (Denmark owns it).

Which country borders the greatest number of other countries? Russia and China tie at 14 apiece.

© 2021 Steven Schwartzman