The Texas bluebonnet (Lupinus texensis) is an annual flowering plant endemic to Texas. (i.e. only found in Texas) It comes as no shock, then, that it is also Texas’ state flower!
Fun facts about the Texas Bluebonnet:
- Bluebonnets are a part of the legume (bean) family, and they have a symbiotic relationship between Rhizobia bacteria around their roots. This allows them to grow in terrible soil conditions. Have you ever seen the fields and fields of bluebonnets along the median of Texas state highways?
Freshly dug peanuts Wikimedia Commons
- The seed coats of bluebonnets are hard and tough, and wind, rain, and weather has to work over months–even years–to penetrate the coat and cause germination.
- Bluebonnet seeds actually germinate and sprout in the fall (so you should plant them then). They stay small and inconspicuous during the winter, while they grow a massive root system. Come spring, they grow like crazy and send up a plume of flowers.
- Bluebonnets rely heavily on bees to pollinate their flowers. White on the flowers attracts the bees while pollen is ready (bees can see white very well), and red on the flowers indicates the window for pollination has passed. (Bees can’t see red)
- Texas actually has five state flowers: all of them different bluebonnet (Lupinus) species!
Big Bend bluebonnet Wikimedia Commons
Stay tuned for facts about chrysanthemums next!
While I bide my time, here are some fun facts about the plants in my book. (If you’re just now joining me, check out my other blog post, where I talk a little about my book.)
The agave is a succulent plant native to the hot, arid regions of the Southwest US, Mexico, and tropical parts of South America. It has several adaptations that allow it to not only survive, but thrive in these conditions:
- Thick, tough, and waxy leaves, allow it to retain as much water as possible and prevent evaporation through transpiration. The leaves are also very sharp and have spines along the edges to ward off any animals that might try to eat its leaves….gotta guard that water!! (think, cactus)
- A shallow root system comprised of rhizomes (continuously growing horizontal underground stem that puts out lateral shoots and adventitious roots at intervals), which allows the plant to soak up as much water from rainfall, dew, and any other moisture.
- In addition to producing seeds, agave also produce little offshoots of new plants from their runners, called “pups”.
- When an agave blooms, it’s stalk rises high above the plant, in order to be out of reach of anything that would attack it. The stalks can reach up to 30ft in height! After the bloom finishes, the agave dies.
Here are some more fun facts:
- Agave are not cacti, nor related to cacti…or even aloe. They are hard to place in the phylogenetic tree, because the variations between species are huge, and some species could simply be variations of other wild species. It’s just confusing.
- Agave spines are so sharp and tough, ancient peoples often used them for sewing needles.
- The agave (and saguaro–a cactus) rely on bat pollination for survival. Two species–the lesser long-nosed bat and the Mexican long-tongued bat–migrate from Mexico into the Southern United States every spring. These two species are listed as endangered, and you can read more about them here.
- Agave nectar, as we know it, is derived from the sap of the plant, not the flowers. (Although, there is nectar in the flowers as a treat for pollinators.) Once an agave has been growing for 7-14 years, its leaves are cut off, and the juice is extracted from the piña–or core–of the plant. It then goes on through processing for human consumption. (Now you know why it’s so expensive….)
- Four major parts of the agave are edible: the flowers, the leaves, the stalks (or pups), and the sap–in Spanish aguamiel (“honey water”).
Stay tuned for fun facts about Texas bluebonnets!
This is an example of extreme mate selection in birds. Just watch.
The only other bird I can think of that does this is the mockingbird. My senior high school biology teacher told us about a mockingbird that lived in a nearby tree who mimicked the beeps from the garbage truck going into reverse. Needless to say, my teacher jumped out of bed in a panic on occasion, thinking she forgot it was trash day.