nen888 said:
^hi Earthwalker..they are all good species....all great to grow...but there are some good strains of A. longifolia/sophorae (for your presumed interest) in your area
Umm I'm a little lost , I just researched the acacia thread and 2 question's I'm pondering but can't find the answer to is histamine toxic ??? And if the subtype longifolia sophorae is of the Tryptamine verity will it contain any histamine at all ?? As I've read as followed
A. longifolia, genetically, either contains mainly tryptamines or mainly histamines..
there are 2 or more sub-types of A. longifolia, [plus sub-species 'sophorae', once a seperate species and itself variable]..
..of true longifolia, two major features seem to indicate the more likely presence of tryptamines:
1) phyllode shape & texture - slightly broader/shorter with shiny dark green is histamine sub-type, plant tends to be more prostrate;
- longer/narrower with paler green, more leathery texture is tryptamine sub-type.
2) flowers - longer, larger, denser, brighter yellow; certain aroma, is histamine type;
- slightly shorter, sparser, less bright yellow is tryptamine type.
..there appears to be a third (not common) form of longifolia which is higher in tryptamines than most..
NB. the toxicity of the histamines is not well known but is probably not acute..they have been bio-assayed at 20-30mg without serious adverse effects; the kind of activity is not understood well either..Histamine is an endogenous neurotransmitter or hormone, and vasodilator ..
Thanx
lol I got all excited for a few mins thanx nex !! 
