Tuesday, April 7, 2015

Profligate Man-willow

A single willow tree – a male – grows in a dry canyon in the rocky hills just east of Laramie.  This is hardly willow country.  But years ago a seed landed on a well-shaded spot where water runs off the canyon rim when it rains.  It germinated successfully and obviously grew well enough.  Maybe there was a series of wet years back then.  Now in maturity it produces a canopy full of flowers in late winter and early spring, long before the leaves appear.

Views from the ground:
Male willow flowers in full bloom.
In the deepest shade, catkins still are mostly silky fur.
A month ago the minimalist flowers – just a hairy bract, a few nectar glands and several stamens – were hidden in furry catkins emerging from buds.  Now most catkins have elongated, and the yellow anthers and pollen are clearly visible.  “Prolific” comes to mind when I think about the amount of pollen on this tree … yet that seems inappropriate when the likelihood of landing on a receptive female is so low.  Maybe “profligate” is better.

Views from the canyon rim:
Looking west; willow in center.
Looking east, up canyon; willow lower right.
Lots of bees and flies were visiting the catkins, but in looking through all my photos I found none.  A breeze picked up while I was on the canyon rim, and many of the photos were largely out of focus.  So I took some of the guys home for portraits.
The willow is in one of several small limestone canyons just east of town.  We’re lucky to have them so close.  They’re short and not very deep, but still there’s enough of interest in and around them to make for pleasant nature walks.  From my house, a 10-minute drive and 15-minute walk lead to the willow.

It’s dry country as Google Earth shows.  Scattered junipers and limber pines grow on rocky slopes, canyon rims and in drainage bottoms.  Otherwise it’s mostly grass and shrubs.  Just upstream from the willow canyon is an interesting area of flat-lying mostly-barren limestone with small hardy plants growing in crevices.
The canyon is only twenty feet deep at the most, but it’s narrow and winding, with enough rock to make it scenic.  As the season progresses, it will be interesting to see if any limestone endemics grow on the rocks – plants restricted to calcareous habitat.
Small but scenic limestone canyon.
Layered limestone has lots of crevices, nooks and crannies – habitat for tough plants.
Field assistant surveys from rim.
Looking downstream towards Laramie.
An artist's view:
"Up the Wash" by Laramie artist John D. Baker.
“Observation and study of the natural world informs my artwork … I try to get at the visual essence of a thing or a view that inspires me to make an image.”

This is my monthly contribution to Lucy Corrander’s amazing Tree-following phenomenon. For the latest news about trees and their followers from around the world, see the gathering now underway.

20 comments:

  1. Wonderful canyon walls. Love the close-ups of the Willow!
    Have a great day!
    Lea

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  2. It's fascinating, Hollis! I've never been around willows enough to watch that transformation in the catkins...

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    1. Nor I ... I'm learning a lot, Amy -- seems to be a big part of tree-following.

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  3. Your field assistant is indispensable and adorable! I love those Google Earth shots. I was researching area vegetative patterns recently, and the images gave me such a clear picture of habitation, lakes, forests, prairies, and various ecosystems in my community. Fascinating stuff. Your images--particularly those of the Willow--are breathtaking, Hollis! I enlarged most of them to enjoy the beauty.

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    1. Thanks, PP! The photography is challenging ... but rewarding enough to keep trying. I'm so glad digital photography came along.

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  4. Thank you so much for your comment and observation about the nature of the branches on my new tree. This could indeed help with an ID. What a superb post here. 'Pussy willow' heads, as we call them here in the UK, are showing as a welcome sign of spring. I particularly like your Field Assistant!

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  5. Beautiful photos and a well put together post! Thanks for sharing all the extra information. The painting by Baker is quite beautiful.

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    1. Thanks, Anna. And I will pass it along ... so far that is my favorite of John's paintings.

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  6. I remember your first post on this tree and we worried about you falling down the hill trying to get a good photo ! thankfully you have managed safely and have some great shots of your tree. Were you are is so different to were I live so find it very interesting following your posts.
    Amanda xx

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    1. I often think that when I read posts from UK tree followers ... the landscapes are so lush! It's drier here, and a lot of the land is public and undeveloped.

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  7. What a fascinating post, as usual!
    That looks very difficult terrain from the Google Earth view. How amazing the willow survived here, but how sad that he is alone.
    I love all your images, especially the painting, the rocks, the catkins - and of course the dog!
    All the best :)

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    1. Thanks sb :) My new dog is great in the field, but she rarely stays still long enough for a photo!

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  8. Amazing landscape! How I would like to have a 'piece' of that layered limestone for my rock garden!
    Nothing says spring better than the willow's catkins!

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    1. Thanks, bi ... even though it's a small canyon it's still interesting and scenic ... I think mainly because of the rock.

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  9. When I think of willow, I think of river banks, so it's wonderful to see you tree in such a dry place. Beautifully composed photos too :)

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    1. Thanks, Tim. That tree in the dry canyon was a surprise to me ... part of its charm :)

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  10. The photos are fabulous, Hollis. Profligate man-willow, indeed.

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