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Botany Photo of the Day
In science, beauty. In beauty, science. Daily.

Corylus avellana 'Contorta'

Corylus avellana 'Contorta'

Although it is a week before I leave on vacation, from now until my return in mid-April the written accompaniment to many of the daily photographs will be shorter than usual. – Daniel

Corkscrew hazel or “Harry Lauder's walking stick” anchors one corner of the Alpine Garden at UBC.

If you've keen eyes, you will note that there are both male and female flowers in this photograph. The long catkins are inflorescences containing many dozens of pollen-producing male flowers, while the small dots of pink here and there are the stigmas (or pollen-receiving structures) of the small, wind-pollinated, apetalous female flowers (apetalous = lacking petals). If you're not certain what you're looking for, the Arkive site mentioned a few days as a resource link has this photograph of a Corylus female flower.

Botany resource link: The Vascular Plant Image Library hosted by Texas A & M University. Eight thousand plant images that are open and available for any educational, non-profit use.

19 Comments

nayla elamin commented:

Daniel,
Have a nice holiday!
Your site brings joy everyday,
thank you
n.

Beverley commented:

Corylus avellana 'Contorta' - Z4 - RHS Index of Garden Plants, Griffiths

Mike commented:

Contorted Filbert, as we call it here in Ohio, is my favorite accent plant, usually gettng to 6/7 feet tall, but i was amazed one day to find myself standing under the canopy of a 30 footer. Interesting form in summer and outstanding winter interest.

Michael F commented:

Hi Mike - Daniel is correct in calling it Hazel, it is a cultivar of Common Hazel (Corylus avellana), not of Filbert (Corylus maxima; a different species)

Ron B commented:

I have heard it called contorted filbert around here since I was a kid. Nevertheless, I prefer corkscrew hazel myself. Jacobson (1996) gives corkscrew hazel, crazy hazel, curly hazel and Harry Lauder's walking-stick.

Jeremy Cherfas commented:

Great notion, to focus on the flowers rather than the branches. A wonderful plant, all, I believe, derived by grafting from a single find in a Gloucestershire hedgerow. http://www.dur.ac.uk/botanic.garden/sciencetrail/ has a brief version of the story.

Christa commented:

Hi,
I just bought a contorted hazelnut in a nursery and I am looking forward to planting it. I live in California, and my soil is clay. It will get morning and noon sun.
What do I need to be aware of in caring for it.
I really love it. It is now 1-2/12 feet high.
Christa

Daniel Mosquin commented:

Hi Christa,

I've posted your question to the garden's discussion forums in the Woody Plants area. I'm not a horticulturist, but there are plenty of great people on the forums who are.

Ron Stimpson commented:

Hi,
I have a curly hazel and it is doing quite well, it is about 4 years old and I have started getting nuts from it, are they edible ?.
Ron.

Carol commented:

our 15 year old corkscrew hazel has suddenly stopped producing leaves in all but one branch. how sad as it is a beautiful 8 foot specimen and our many birds friends love to rest in it.... great for my camera hobby. However the tree really looks dead and the branches are brittle. Also the first signs of fungus are on the branches
We live in a severe snow belt however it never seemed bothered by the winters before.
Any ideas how to bring it back to life?
Carol Aitch

Daniel Mosquin commented:

Carol, that's a better question for the forums (see link right above the the words "Post a Comment")

Karen commented:

I have one of these in my back yard (Merseyside UK)and this year we have nuts on it. I presume we can eat them when they are ripe? x

Daniel Mosquin commented:

Yes, they are edible.

Henry klooster commented:

I have Black Walnut Trees on my will the Corkscrew Hazel survive under or around it
Thanks I LIVE IN KITCHENER ONTARIO CANADA

penelope di leva commented:

I brought a Corylus Avellano from the UK to southern Italy in February. It is growing in a large terracotta pot on a part sunny/part shady balcony.
1) The leaves are turning brown and curling at the edges what is the problem
2) I water it every 3 days, BUT should I leave water underneath to be sucked up, or do I water it from the top? PLEASE HELP, I dont want to loose this lovely plant!

YeVon commented:

Got one of these from QVC and they call it the "Harry Lauder Walking Stick Tree". Was wondering about it's growth pattern. I got a bare root one, planted it 3 months ago and it looks the same as when I planted it -- little tiny buds, no height growth. How do I know if it is supposed to be this way or if it is DEAD? I am in Southern California with brown thumb.

ruth smith commented:

I planted a hazelnut about ten years ago. I blooms but bears no nuts. Why? Also at that same time I planted a walnut tree, hickory nut, and a persimmon. All are big beautiful trees but none bear fruit. Any ideas????

Eric in SF commented:

(I haven't researched the particular trees you mentioned, so this is general advice)

You need a pollinator and possibly a matching tree of the opposite gender.

If you only have a male tree or only have a female tree, you will not get fruit set, even with a pollinator.

If the trees have both sexes, you might be missing a pollinator. Try renting a beehive for a week or two when the tree is feeling sexy in the spring.

ek commented:

I was a primary school teacher who did not like straight lines and who used the arts as the springboard to teach reading, writing and arithmetic (plus science, of course). When I retired, I was delighted that the staff presented me with a contorted filbert because... "You don't have a straight bone in your body, Enid. You have shared your many ideas and talents with us as well as with all the students in the school. This is just you!"

What a wonderful gift. My tree is planted near my door. So many people stop to comment on it, and even gather the 'curls' for crafts.

I knew that it was a good polinator, but I didn't realize the little red nubs were female flowers. We never stop learning, do we!

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