|Ozark Downy Phlox - Phlox pilosa|
"A friend in the native plant nursery trade recently asked me to look for plants of Ozark downy phlox (Phlox pilosa var. ozarkana) so seed could be collected. I had really never studied the different expressions of phlox species before. That led to some research and some intense field study and photography of the phlox plants at Bull Creek on our Master Naturalist Wildflower Walk last weekend."
|Pubescence- Click to enlarge|
Microscopic examination clearly showed the glandular pubescence we were looking for.
Linda's explanation peaked my curiosity. "Pubescence" is defined as "soft down or fine short hairs on the leaves and stems of plants or on various parts of animals, especially insects." It required a hand lens to identify it, unlike the other definition, "the time when puberty begins," which was a little more obvious. Since our children are around 50 we don't need to think about that any longer. Clicking on the photograph on the right will give you the chance to enlarge it as Barb was doing above.
|Glandular hairs - REK|
Glandular trichomes produce some kind of secretion such as essential oils such as those in mint plants. In some species such as carnivorous plants, they produce glue like substances to capture insects.
Some other finds from the April 1st Wildflower Walk are in this album.