Piptocoma discolor – A Tree in the Aster Family

In February of 2009, a young sapling shot up next to a rock in our back yard. One of the people working on a project for us told us to cut it down – that it was a weed. But Dario, our gardener at the time said, in Spanish, something along the lines of “Oh, no, don’t cut that one down. It’s a salvia silvestre.” He clearly was quite fond of it. Later that same month we had some strong winds and one of the trees that fell down was, to Dario’s dismay, a salvia silvestre.

Piptocoma discolor

So I was curious. It’s certainly not the Salvia in the mint family that we know from the Northern Hemisphere, but the leaves are a little reminiscent of sage to the touch. What plant is it, then?

After I saw the one that fell, I learned to recognize the mature tree. It has a trunk that reminds me of one of my favorite savanna trees – Miconia rubiginosa.


Piptocoma discolor Miconia rubiginosa trunk

Having the images here side by side, I see that the trunks aren’t all that similar. The grooves of the “salvia” on the left are lighter in color and straighter than those of the Miconia on the right. Nevertheless, the bark in both cases is deeply grooved and the trunks of the mature trees are roughly similar diameters.

In an abandoned pasture, the “salvia” is likely one of the tallest of the trees there, but if it’s growing along side a quebrada (a spring, sometimes seasonal) it’s just one among other tall ones. When in bloom, it’s possible to see that the flowers are white, but that’s about all you can tell from the ground. The flowers are high up in the crown of the tree, impossible to reach.
Piptocoma discolor Piptocoma discolor

I decided my only hope of seeing a flower close-up would be to wait until our sapling matured enough to bloom, with luck while it was still short enough for me to reach the flowers.

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Housekeeping

A wise scientist (or is that an oxymoron?), once said to me and a few others that blogging should be fun. I couldn’t agree more, but it hasn’t been as much fun as I’d like it to be lately, trying to keep this blog going while dealing with the consequences of incredible La Niña rainfall amounts and just keeping ye ole finca maintained. Then I get guilty when I fail to work up another plant. So I’ve decided to do something a little different, to keep the fun in it.

The true focus of A Neotropical Savanna is learning how to identify the plants I’m surrounded by. I like having a record of how I arrived at the name, because I can always go back and look it up when I forget, which is becoming more frequent than I’d like these days. Once I have the name, then I can learn more about the plant through all kinds of research, but I do need that name. I’d like to keep that focus on this blog, but I wander off sometimes – into rain reports and plant blog carnivals for instance.

My solution is to move to another blog that I started awhile back but didn’t do much with. It’s called An Accidental Botanist. At that site, I’d like to lighten up a little, keep my posts a little shorter, and generally have a little more fun with it. My first post of this year at that site is about Berry Go Round #31, with a small and inadequate tribute to Laurent Penet for starting it.

I’ll keep A Neotropical Savanna up, and I’ll do a little housekeeping on it. I’ll move the weather and other “off-topic” posts over to Accidental and I may freshen up some of the older posts with better pictures as the opportunity arises. I’ll even keep working on plant identification posts, but I’ll have relieved myself of the pressure to get something up with any regularity.

Life is short enough as it is.

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Fourteen Inches of Rain

Sunday afternoon 14 inches of rain [see update, below] fell on Boquete, Panama, in the hours between 2 and 9 PM. Most of that was concentrated between 3 and 6 in the afternoon.

The top graph is of wind direction, with North at both the top and the bottom and South in the center, to accommodate 360 degrees stretched out in a straight line. The bottom graph is rainfall rate in inches per hour. Note the scale – maximum is 5 inches per hour. Most home rain gauges capture up to 5 inches, assuming it will be read once per day.

Boquete Rain Apr 22

Boquete is not here where we are, but the personal weather station that recorded these data is located 6 miles due north of us and uphill by 1740 feet (530 m).

The river that flows through Boquete flooded, of course, and a resident of the area has posted photos of the damage at Picasa.

For us, on that day, the intense rains were of much shorter duration and occurred at the time of a secondary peak in the Boquete rain. Note that our scale goes to only 4.5 inches/hour.

Potrerillos Rain Apr 22

This particular episode may have been related to a trough located near the Intertropical Convergenze Zone and possibly also by the activity of Tropical Storm Frank in the Pacific.

Whew.

Update – 6 Sep 2010. Boquete Weather Watchers has published a correction to their 14-inch figure. It turns out their rain gauge was out of calibration. They’ve estimated that they received about 7 inches of rain on the day of August 22. That’s about what we got. Their rainfall graph is still correct for relative rain rate – it’s just that the scale is way off. Lesson learned for rain gauge calibration. We’re working on ours now.

Still, 7 inches is a lot of rain in one day. And the floods did happen.

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It’s Not Fair

While some parts of the world swelter and others suffer from severe drought, we continue to be deluged with rain. It’s most likely due to La Niña, we know, but that doesn’t make it any easier, and we really do wish we could spread this wealth around.

In July we broke the monthly record for rainfall since Señor Espinosa started keeping track of rain in our area in 1992. The previous record – for September 1999 – was 55.3 inches. This July we exceeded that amount by exactly 4 inches; our total was 59.3 inches.

It rained 29 of the 31 days in July and on one of those days, it rained more than five inches.

July Rain Days, 2010

Meanwhile, our average temperature has been 71 degrees F.

We have a few more tidbits at our weather archives page.

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