Self-tutoring about local trees: the tutor mentions the sweetgum for the second time. Back on September 15, 2015, I noted a sweetgum tree in Campbell River. Its star-shaped leaves were how I identified it. Yesterday, I saw one without leaves…
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Category: biology
Dawn redwood, part III: winter mode
Self-tutoring about local trees: the tutor makes another observation about local dawn redwoods. I wrote a few posts about local dawn redwoods, the most recent here. It will lead interested readers back to earlier ones. Dawn redwood is deciduous here.…
Zoology: competitive exclusion principle: American alligator and American crocodile in south Florida.
Self-tutoring about reptiles: the tutor looks into the relationship between the American alligator and crocodile. Only one habitat in the world is shared, naturally, by both alligators and crocodiles: the everglades of south Florida. The American alligator, and the American…
Botany: dawn redwood, part II
Self-tutoring about dawn redwoods: the tutor shares some ideas about identifying them. In my past two posts,
Botany: dawn redwood, part I
Self-tutoring about botany: the tutor shares an exciting find from the field. In yesterday’s post I mention a long connection I have with dawn redwoods, despite only recently becoming acquainted. The dawn redwoods themselves have a story. Scientists discovered dawn…
Botany: artichoke identification
Self-tutoring about botany: the tutor identifies a plant he saw. Yesterday, in a sidewalk garden, I noticed a striking plant. It had big purple flowers, perhaps 8 to 10cm across, consisting of many long filaments. The flowers reminded me of…
Botany: linden (basswood) tree
Self-tutoring about trees: the tutor mentions a linden he’s noticed. In the northwest corner of a local sports field is a hardwood tree, perhaps 70 ft tall. Its trunk is oval; its max diameter might be 18 inches. The bark…
Red elder tree flowers and fruits simultaneously
Self-tutoring about botany: the tutor shares an observation about a red elder. I know of few trees that produce new blooms while their fruit is on. Yet, I (and now you, too) can witness a red elder doing so. In…
Biology: what does sympatric mean?
Biology self-tutoring: the tutor looks up the definition of sympatric. sympatric: inhabiting the same region as two distinct species. On BC’s coast, western hemlock is sympatric with sitka spruce. Source: wikipedia www.merriam-webster.com www.for.gov.bc.ca www.for.gov.bc.ca
What does feverfew look like?
Self-tutoring about plant identification: the tutor identifies the daisy-like plant growing in the backyard. Identifying this one took some time, but I believe it’s feverfew (Tanacetum parthenium). The non-pointed, lobed leaves seem to be decisive, as many plants, apparently, have…
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