English yews, Taxus bacata, as ornamentals |
Sunday, January 26, 2025
The English Yew, Taxus bacata--Ordinary and Fabled
Sunday, March 6, 2022
Plant Story--Weeping Willow, Salix babylonica
I was four years old when my parents rented an old house in Scotia, New York. That was the 1950s; my father shoveled coal into the furnace each morning for heat. The back yard was dominated by a weeping willow tree. I think that was the first tree I learned. The tree was huge. Or, I remember it as huge. I was pretty small during the three years we lived there. The fact that I couldn't reach more than a quarter of the way around the trunk should be modified by remembering how short my reach was, at the beginning of elementary school. But my memory that the tree was taller than the two-story house is surely accurate. A big tree with dangling branches, creating a lot of fallen twigs that my father disliked. But the sticks were great for my games!
weeping willow, Salix babylonica |
Sunday, December 27, 2020
Plant Story--The Stately Colorado Blue Spruce
Colorado blue spruce (Picea pungens, pine family Pinaceae) is native to the central and southern Rocky Mountains, in Idaho and Wyoming south to New Mexico and Arizona, from high elevations (USDA Zone 2) down to Zone 7 (lowest winter temperature, freezing). It is endemic to the United States. and more specifically, the Rocky Mountains. A beautiful tree with bluish foliage, it has been widely planted as an ornamental around the world.
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Colorado blue spruce, Picea pungens |
Sunday, January 26, 2020
Plant Story--Mountain Mahogany, Tough Little Tree
Mountain mahogany, Cercocarpus montanus (rose family, Rosaceae) is a native shrub or small tree of the foothills of the Rockies and across the western U.S. It is not related to the tropical mahoganies (genus Swietenia, chinaberry family, Meliaceae) except in the sense that the common name reflects the color and luster of the wood.
Sunday, December 3, 2017
Plant Story--The Majestic Cottonwood
Sunday, August 13, 2017
Visiting Ontario, Canada--Plants of Toronto
Toronto is not only the city with the largest population in Canada (2.7 million people), but it is the 4th largest city in North America, after Mexico City, New York, and Los Angeles. Greater Toronto has 7 million people. It sits along the north edge of Lake Ontario, so for Canada it is in the far south. Lake effects from the Great Lakes keep Toronto's climate mild, moist and unpredictable.
For me it is always a botanic tour, so here is a brief look at Toronto's plants.
Sunday, June 11, 2017
Visiting Japan--Pruned Trees and Shrubs
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Flowering cherry in Toyko park |
We started in Tokyo, admiring the centuries-old gardens to be found among the skyscrapers.
Sunday, April 9, 2017
Sunday, March 5, 2017
Sunday, November 1, 2015
Plant Story--Franklinia, the extinct American camellia
Sunday, January 11, 2015
Visiting Seattle--Rambling in the Forest at Bloedel Reserve
View from the Ferry, Seattle |
I was on a tour with the Denver Art Museum's Asian Art Association in Seattle. Art tours are great fun: they feature private collections you could not see otherwise and walks through museums led by enthusiastic curators. But this one also took me to Bloedel Reserve on Bainbridge Island for a relaxed afternoon that nurtured my love of plants close to the hustle of a big city.
If, like me, you don’t live in city with ferries, taking a water route to a destination is a treat in itself.
We landed on Bainbridge Island and took the bus (very convenient).
Sunday, January 4, 2015
Plant story-- Holly, holy and Hollywood, a Holly Postscript
1) Is the word holly derived from holy?
and
2) Is Hollywood, California named for a grove of European holly trees?
Sunday, December 28, 2014
Plant Story -- European Holly - Not Always with Spines and Red Berries
European holly, Ilex aquifolium |
First, holly trees vary in the number of spiny leaves. You can see it in any of the photos--some leaves are smooth and others have spines on the edge.
All sorts of people have thought about the variation in the spines. Young plants tend to have mostly spiny leaves. (photo below) On a big tree, the lower branches have more spiny leaves than higher branches.
Sunday, December 21, 2014
Plant Story -- Holly (Ilex aquifolium) Celebrating the Solstice--and Christmas--for Millennia
Sunday, December 7, 2014
Plant Confusion--Hemlock, Both Umbels and Conifers
As a child in upstate New York, I read and reread J. R. R. Tolkien’s The Lord of the Rings until I had memorized a dozen of the poems. This one was one of my favorites. I imagined Tinúviel dancing in a forest under towering hemlock trees.
Sunday, September 7, 2014
Plant Story--Aspen, Populus tremuloides, widespread and speading
Though you may also know some of its relatives, in North America you are likely to know it as well. Quaking aspen is the most widespread tree of North America. Of something like 1,000 trees in North America, it is Number One. Aspen is found from northern Canada to Mexico, from the Pacific to the Atlantic coasts (map at USDA Plants). The elevational range is also great, from sea level to 10,000'.
Sunday, March 23, 2014
Plant Story -- Osage-Orange and the Animals of the Pleistocene
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Osage-oranges on the ground |
Mostly we don't think about what we see and ask "why?" But why does Osage-orange make a huge fruit? Plants are rooted. To get to new areas, something (wind, water, an animal) has to carry the seeds away. Osage-orange fruits seem horribly inefficient at dispersing the plant.
The current answer is: the fruits evolved to be eaten by animals that have gone extinct.
Sunday, March 9, 2014
Visiting Northern Florida--ooh! Magnolias!
Monday, November 18, 2013
Visiting Iceland: A Botanist's Quick Look
Fields of west central Iceland |
Iceland is an island of 40,000 square miles (the size of the state of Kentucky) in the North Atlantic just barely south of the Arctic Circle. There were no humans until 860 AD when a ship from the Faroes stumbled on it. A few years later a ship captained by Raven Floki came to explore. He found it cold and dangerous and named it Iceland. Settlers arrived in 870. They spread across the land, trying to raise crops on an island with shallow soils and a short growing season. Eventually they gave up growing grains and simply raised livestock on the green fields.