Runhao Deng Journal Entry

I had identified a flower, which initially could be identified as part of the Verbena genus, part of the Verbenaceae family, where it is native to the Americas. The flowers were visually similar to that of the Verbena bonariensis. After further research, I was able to confirm that these flowers were indeed Verbena bonariensis, by identifying the square stems and the presence of stiff trichomes (stem hairs). This also does make sense, given that the Verbena bonariensis had been reported in the Calgary area.

The stiff stem hairs on the Verbena bonariensis is an adaptation which likely benefits the species by increasing area on the stem of the plant, which can help to stabilize tissue temperature. These hairs also play a role in breaking the wind so that it can remain rooted in the ground. (http://www.microscopy-uk.org.uk/mag/indexmag.html?http://www.microscopy-uk.org.uk/mag/artmar00/hairs.html)

A common adaptation between all the observations is the ability to photosynthesize, through the use of chloroplasts which hold the pigment chlorophyll. Chlorophyll allows for the observed plants to transform sunlight and carbon dioxide into oxygen and sugar molecules. This allows for the plants to have consistent and regular access to nutrients, other than those underground.

Publicado el septiembre 25, 2020 10:55 TARDE por runhaodeng