A Gardening forum. GardenBanter.co.uk

If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed. To start viewing messages, select the forum that you want to visit from the selection below.

Go Back   Home » GardenBanter.co.uk forum » Gardening Discussions » Edible Gardening
Site Map Home Register Authors List Search Today's Posts Mark Forums Read Web Partners

Difference in green v. black walnut trees?



 
 
LinkBack Thread Tools Search this Thread Display Modes
  #1  
Old 01-07-2003, 02:20 AM
Claire W. Gilbert
external usenet poster
 
Posts: n/a
Default Difference in green v. black walnut trees?

Hi,

I just moved to Redwood City, California, and there is a walnut tree on the
property with green walnuts. How can I tell the difference between English
walnuts and black walnuts in terms of the green fruit (now on the tree) or
the leaves, etc.?

Thank you very much.

Claire Gilbert




Ads
  #2  
Old 01-07-2003, 01:44 PM
Pat Kiewicz
external usenet poster
 
Posts: n/a
Default Difference in green v. black walnut trees?

Claire W. Gilbert said:

I just moved to Redwood City, California, and there is a walnut tree on the
property with green walnuts. How can I tell the difference between English
walnuts and black walnuts in terms of the green fruit (now on the tree) or
the leaves, etc.?


Common [English]: walnut 5-7 leaflets, terminal leaflet large, leaflet margins smooth
edged, leaves are aromatic when crushed. Nuts vary greatly in size and shape but
typically have shallow fissures and the shells are light coloured. The bark is smooth
when young and grey in colour, only becoming fissured after about 15 years.

Black walnut: 9-17 leaflets, terminal leaflet small or absent, leaflet margins finely
serrated, leaves are not aromatic when crushed. [picture] In addition the midrib
underside the leaf is covered with fine hair. Leaflets tend to angle down from the
midrib. Nuts vary greatly in size and shape but typically have deep fissures and the
shells are dark coloured. The bark is ridged from a young age.

Hybrid walnut: 7-12 leaflets, terminal leaflet quite large, leaflet margins coarsely
serrated, leaves are not aromatic when crushed. The midrib underside the leaf is
hairless. Leaflets do not angle down from the midrib. Nuts vary greatly in size and
shape but typically have deep fissures and the shells are dark coloured. The husks
are green, lightly textured and very aromatic. The bark is ridged from a young age.

(courtesy http://www.walnuttrees.co.uk/FAQ.htm#species_look)

BTW, 'English' walnuts produce much less juglone than black walnuts -- but are
sometimes grafted onto black walnut or hybrid rootstock, which would make them
far more likely to cause walnut wilt in suceptible plants than purely English walnuts.


--
Pat in Plymouth MI

Any technology distinguishable from magic is insufficiently advanced.
(attributed to Don Marti)

 




Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is Off
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
Black Walnut tree fruits wanted td United Kingdom 14 13-10-2011 10:52 PM
Culinary herbFAQ part 7/7 Henriette Kress Edible Gardening 0 31-03-2003 01:56 PM
Black walnut fruits wanted td United Kingdom 4 22-03-2003 11:28 AM
Strings of small green pearls madgard Gardening 9 18-03-2003 01:20 AM
Not All is Black Inside the Nation's Biggest Wildfire Re-elect Gore in 2004 alt.forestry 0 19-10-2002 01:59 AM


All times are GMT +1. The time now is 07:23 PM.


Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.SEO by vBSEO 3.6.1
Copyright 2004-2014 GardenBanter.co.uk.
The comments are property of their posters.