Pollen, Leaves, Elbows, Violets, and That Bend in Buffalo Bayou
March 28, 2020
Spring came unusually early this year, in case you were too preoccupied with other news to notice. Which brings up the question: how is spring determined?
There’s astronomical spring. And meteorological spring. And actual spring.
And a pandemic. But that’s a different topic. (Keep your fingers out of your face!)
One way we know that actual spring is here in Houston: the mounds of oak pollen and leaves on the ground accompanied by the obnoxious sound and smell of leaf-blowers blowing the pollen and leaves (and dirt) around. (Been very windy too.)
Tree pollen, mostly live oak, is generally highest in March in Houston. And yes, we have had record amounts of oak pollen, which comes from the long dangling male flower of the tree spreading its seed and causing lots of alarming coughing, sneezing, and brain fog. Though it seems that based on a perusal of City of Houston Health Department records, which go back online only to 2013, tree and oak pollen in March 2019 was way worse.
The male live oak flower pollinates the much smaller female flower, but it’s the female flower that turns into acorns. (Yes, we’re talking about tree sex.)
By the way, native live oaks support 425 different species of creatures compared to our beloved but basically useless non-native crepe myrtles, which support only FOUR (4), according to Kelli Ondracek, manager of Natural Resources for the Houston Parks and Recreation Department, who spoke about the City’s riparian restoration projects at a recent Houston Sierra Club meeting.
Not to Panic
Watching leaves fall in the spring (and pollen raining down) may be confusing to people who aren’t familiar with live oaks. As if we don’t have enough to panic about. (Use your elbows!) But live oaks naturally lose their leaves in the spring when new, green leaves push out the old ones. (Hmm, sounds like some politician’s COVID-19 plan.)
Which brings us to meteorological spring, which meteorologists established some time ago based on temperature patterns. Meteorological spring began on March 1 in the Northern Hemisphere and runs through the end of May. Since we’ve been having record warm weather, with an abnormally warm spring predicted, they may have to change that date. Maybe eliminate winter altogether. Just go right to summer.
Astronomical spring came early too, the earliest in 124 years. This arrival of spring is determined by the vernal equinox, which happens when the sun is directly over the earth’s equator, creating a day that is the same length as the night. Astronomical spring arrived Thursday, March 19, at 10:50 p.m. CST.
Spring on the Bayou
So it was spring and time for the Spring 2020 photograph in our ongoing series documenting the same bend in Buffalo Bayou throughout the seasons.
Except that due to the new and different coronavirus COVID-19, our world-renowned photographer, Jim Olive, was on general lockdown with his beloved in the state of California. So we set out to the woods on our own.
“Remember to turn your iPhone horizontal,” Jim texted helpfully from Palm Springs.