Saturday, March 31, 2012

The Norway maple's March transformations

I have been tracking spring coming to the Norway maple by my balcony by taking photos of two areas of the tree.  One is a branch, a bit farther from the balcony, and the other is a bud quite close to the balcony.  Here's the progress of the branch:

March 23, 2012

March 24, 2012

March 25, 2012

March 27, 2012

March 30, 2012

And here it the progress of the bud:

March 24, 2012
March 25, 2012
March 27, 2012
March 30, 2012

On March 31, 2012, the story of this tree took a different turn.



Friday, March 30, 2012

Sugar maple sprouts

There are lots of sprouts surrounding the sugar maples on Peoples Avenue by the alumni house.


Crabapples in March

When I left work on Friday, March 16, the crabapples were bare, but when I arrived on Monday, March 19, they were starting to show leaves.

A few days later, on Thursday, March 22, the leaves had opened up.


On Friday, March 23, the flower buds were starting to open too.

A week later, on Friday, March 30, they looked like this:

Blooming of the Callery pear

The Callery pears have been in full bloom for about a week now.

March 15, 2012


March 20, 2012

March 29, 2012

Magnolias bloom and wither

The magnolias bloomed when there was a warm spell, and then withered when there was a cold spell.

March 20, 2012


March 20, 2012


March 29, 2012

Tuesday, March 27, 2012

Cottonwood flowers in March

The cottonwood flowers are looking colorful.

Peter Donzelli's tree in March

This tree has a plaque saying it is in memory of Peter Donzelli.  I have been watching this tree for nearly two years, but I don't yet know what kind it is.  As I recall, in late summer, it had fruits that looked like little black beads.

Monday, March 26, 2012

Cherry blossoms in my neighborhood

I think this tree on the corner of 14th and Hutton is a cherry tree.





I can see it from my apartment.

Saturday, March 24, 2012

At Peebles Island, a few flowers and leaves against a backdrop of gray

At Peebles Island, one tree flowers while those around it are bare.




Note the insect in the middle picture.

What could this tree be? I think I'll look in the cherries and plums section of my book.  It does seem to resemble American plum.

And here we have another kind of tree which has nice catkins.

I looked on the internet at pictures of catkins, but I didn't see any that matched this. A lot of catkins in The Sibley Guide to Trees seem to be more yellow and fuzzy.  Could it be that these will turn more yellow and fuzzy when spring is a little farther along? Here's what the trunk of the catkin tree looks like:

Also amid the gray leaflessness, there are some green leaves in the understory.

Here's a closer look at the source of the green leaves. I'm thinking common buckthorn because that's what was in the understory here in summer, but other than that, this doesn't especially look like buckthorn. Is it another understory tree that is less noticeable in summer?



Closer to the shore, the boxelders and the weeping willow are showing leaves.


And the red maples are flowering.




Monday, March 19, 2012

Red maples flower

Last fall, I tracked the changing colors of the red maples that I pass by on my way to and from work.  Now those red maples are starting to flower.  The one on the north end is red, while the one next to it is yellow.  The Sibley Guide to Trees indicates that female flowers are usually red while male flowers are usually yellow.


Leaves starting on the crabapples

When I got to work today, the beginnings of leaves had appeared on the crabapples!


Flowering ash

Today I finally photographed what I've been wondering about since at least March 7. In fall 2010, I took notes on the trees between home and work, recording what I thought they were while they had leaves so that I would know after the leaves dropped. According to my notes, I concluded that the trees on the west side of 15th Street from Hutton Street to Jacob Street were green ash. But if they are all the same, why is one flowering but the others not? Are they really all the same kind of tree? But the trunks do look the same. And the flowers that came out do look like the picture of green ash flowers in The Sibley Guide to Trees. I guess that does happen sometimes. In the past few days as the red maples have come out, not all flowered at the same time.  Is the one that is flowering in a location that is warmer or gets more sun?

Here's the one that is has been flowering for two weeks:


And here are two photos of the next tree down the street:



This one, a little farther down the street, is flowering a little, but not as much as the first, and it just started, while the first one has been at it for a fortnight.