I get a lot of requests online for help identifying wild foods – especially fungi. I welcome these – it is a pleasure to help people improve their knowledge and gives me an opportunity to sharpen my identification skills. Win-win. But I feel a little guidance to people looking for help with ID would make the exchange more useful to both them and me. So here are a series of guidelines – my “rules” if you like – with an explanation of why.
Its easiest to start with a genuine example of exactly how NOT to ask for help. I will mostly refer here to the identification of fungi, but most of the lessons are transferable to plants. This was a Tweet, but I have received many similar on this website, facebook and by email. (I have changed the pictures for convenience).
“Are any of these edible?”
I’m hope you will see immediately a few ways in which this isn’t a great way of asking somebody you’ve never met for advice on a potentially life and death matter!
Pls or thnx don’t take up that much space, even if you are restricted to 150 characters.
The enquirer doesn’t seem to be interested in what species the fungi are. I once had such an enquiry from somebody who referred to themselves as a “gourmet”! How undescerning can you get!?
Sand, grass and even McDonalds are technically edible. Wild plants and fungi can range from deadly to delicious, but the vast majority fall somewhere between. Check out my blog on The Spectrum of Edibility.
The implication is that the enquirer has no interest whatsoever in the plant or mushroom if it is inedible. This is a really good way of alienating the person who has presumably taken a good deal of time and effort getting to know their subject. Worse still (this really annoys me), I regularly get sent pictures of large quantities of fungi that people have picked with no idea whatsoever what species it is. I don’t know what it is about fungi that make otherwise reasonable people disengage their brains! For all they know it could be incredibly rare, highly poisonous, or both. Even if the species turns out to be common or edible, it is still a rather thoughtless way of going about your business. More often than not, the mushrooms that have been thoughtlessly ripped from the ground turn out to be inedible. Presumably the errant picker then just chucks them in the bin, or compost if the mushrooms are lucky.
Most importantly of all, it is, at best unfair, at worst complete foolishness, to ask a stranger whether you should eat something. There have been several cases of online misidentification by knowledgeable and well-meaning experts that have lead to acute poisoning and even death. Many fungi forums have banned discussions on edibility.
My policy is to offer my thoughts only on the identity of the plant or mushroom:
It is for the individual to decide whether to (a) agree with the identification and (b) proceed to eat the item.
Even when identity is established and edibility ascertained, there are still a great many wild foods – fungi especially – that are generally edible, but cause an adverse reaction in some people. (This is true of almost any new food – not just wild foods!). You can only find out if a new food is for you by eating a small quantity of the specimen, well cooked and on its own, then waiting for a few hours. This puts a lot of people off and that’s fair enough. Personally I feel the possibility of an hour or two’s mild gastric discomfort is a small price to pay for a delicious new wild food on the menu!
The enquirer may well have spent sleepless nights poring over identification guides, struggling with his or her limited experience before finally looking for outside help. But the message shows no evidence of that. It looks rather more like they have pointed their camera phone at a few things that have caught their eye then sent it for diagnosis without really going to any trouble. Really, there are some pretty good website ID guides a click away if they are genuinely interested!
This is why I ask that ID enquiries include a “best guess” – even by complete novices. Identification skills only improve by honing observation skills and investing some meaningful time.
You wouldn’t expect a doctor to diagnose your illness by just letting them look at the top of your head. In the same way, it is very difficult – often impossible – to identify a plant or fungi with just a picture of its leaf or cap. On a recent foray with a professional mycologist I was surprised that at least a third of the species we found could only be definitively identified with a microscope. Even with a mushroom in hand or an excellent set of pictures it is often only possible to say which genus a mushroom may be part of.
If you can only send one picture, try to ensure it includes as much as possible of the following:
- Scale – place a knife, coin, hand etc in the picture
- Cap from above
- Cap from below – this may require picking a mushroom and placing it upside down beside growing specimens.
- Cross-section if possible
- Focus – please do your best to make sure the picture is reasonably well defined.
Here are some examples of useful ID pictures:
5. Habitat and location
The more information you can include, the better. The specific habitat in which the mystery species is growing can be an important clue to its identity. In the case of many mushrooms the host or partner organism (often a specific species of tree) is essential for accurate identification. Remember that a tree’s roots reach as far out from its trunk below ground as its branches do above ground. General habitat is also important – was the plant/mushroom growing coastally? On flooded ground? On bare soil? Geographic location can also help to eliminate certain species – eg. Scots Lovage doesn’t grow in S England, Alexanders don’t grow in Scotland etc.
It is not my intention here to dissuade anyone from asking for help with plant or mushroom identification. I hope only to help people frame their requests in a more useful way – for them and me!
Here are some examples of good ID help pictures and accompanying requests (all in under 150 characters!):
These turned out to be blushing bracket (probably!), cortinarius bolaris (poisonous!), and greater cuckoo flower (now one of my favourite salad greens!). All these were pictures I took myself and puzzled over before asking for help!