Greetings,
In the fields of biology and ecology, a specific word is used to describe a living organism that no longer inhabits a particular area: extirpated.
An extirpated tree, for instance, grows in other regions of the world, but it no longer exists in a particular place that it formerly occupied.
An appropriate example is the Atlantic White-Cedar tree. This coniferous tree formerly inhabited the state of Pennsylvania, though by the early 19th century all wild populations had been logged. Atlantic White-Cedar is not extinct, however, because its range currently spans the Atlantic coastline. Instead, this tree is considered to be extirpated from Pennsylvania because wild populations no longer grow here.
This past weekend, I encountered something fascinating: a healthy population of Atlantic White-Cedar in Pennsylvania. This population was located within a beautiful bog containing typical bog specialists including cranberry, huckleberry, pitcher plant, sundew, and dozens of other plants.
Interestingly, ecologists and botanists are well aware of these Pennsylvanian Atlantic White-Cedar trees, and even though this population of Atlantic White-Cedar seems to be thriving, the tree is still considered to be extirpated from the state.
But why?
In this brand new video, I discuss the topic and address a few pertinent questions. If you are unfamiliar with the beautiful and majestic Atlantic White-Cedar tree, check out the video!
July through September is mating season for timber rattlesnakes in Pennsylvania, and in this recent Instagram post, I describe a very recent and close encounter with one of these beautiful creatures.
Thanks for reading and watching, and thanks for your continued support!
-Adam Haritan




Plant Profile




While on a volunteer trip in Orlando, Florida, I was desperate for bug spray. In the middle of December, the mosquitoes nibbled on any exposed skin they could find, leaving me and the rest of the unprepared Maryland native participants with patches of red swollen bumps on our ankles and arms. Our guides, a retired couple who volunteers with the state parks, became our heroes on the second day of the trip. During our lunch break, the husband saunters over to us, carrying a branch from a nearby shrub and states, “This is spicebush. Crush its leaves and rub it onto your arms. Keeps the bugs away and helps the itch.” Immediately, we passed the branch around, ripped the leaves off the branch, crumpled them, and rubbed the lemon-peppery scented oil onto our skin.
are endemic to Africa, and three species occur in India.1,2 Belonging to the Brassicales order, this plant family is distantly related to cruciferous vegetables like arugula (Eruca vesicaria ssp. sativa, Brassicaceae) and broccoli (Brassica oleracea var. italica, Brassicaceae) and contains many of the same nutrients and sulfurous phytochemicals.1,3 Moringa species grow as stout-stemmed trees or shrubs. Some species are known as bottle trees and have a large root system that enhances water storage and aids the trees’ survival during periods of drought.1 Members of the Moringa genus have corky gray bark and distinct bi- or tri-pinnately compound leaves that have conspicuous swellings, or pulvini, at…





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