Except that's ASIAN water caltrop,
Trapa bicornis. THIS is European. Smaller, but FOUR spikes, at least one of which is always pointed up.
Ironically, both are edible as "water chestnuts" though neither is the "official" water chestnut,
Eleocharis dulcis.) In fact, natans is the one the Italians would use in tetrazzini. It was also popular with some monastic sects, hence the alternate name "Jesuit nut"
Moving on.
Thanksgiving dinner has come and gone, and what few hemp seeds I had are now in the hands of my cousin who can actually legally grow them (I could grow SOME, but I think he lives somewhere where the number of allowable plants is much higher, so a better choice when one doesn't know what one has.) Guess I'll find out next year if any of them grew (or maybe this summer, if we have a get, together then.)
On the receiving side, my hosting cousin gave me (FORCED ON me, actually) the result of a spontaneous cross between his Waltham Butternut squash, and his Trombocino. God knows what I'll do with that! (I usually don't grow ANY squash, it takes up a lot of room and its sort of squash or watermelons.)
This also means I was FINALLY free to take apart my corn ears (which were already falling apart) and get them ready for the next test (if they pop, since they aren't dent anymore).
Dad wants me to start a pot of cat grass for Juniper, which means that I'm actually going to have to go and GET some small grain seeds, as I only have been able to find maybe ten going through my room* (the irony is, the reason I have so little now is that I threw most of mine out when I stopped growing small grain, and the reason I stopped growing small grain WAS Juniper (since he starts chewing on any heads I bring in for floral displays). Does anyone know if einkorn is safe to use as cat grass? I've still got a decent amount of that. I can't think of any reason it WOULDN'T be (I mean it's basically primitive wheat) but I want to double check it isn't like super full of extra silica in the leaves and stems that could cut up his tongue and insides. Luckily I think I saw a packet of cat grass in the local nursery's clear out basket when I was there looking for the Jiffy Pots.
I also have at least one rice grain lying around but, while I am aware you can grow rice "upland style" (in dry ground) after the incident with the mystery grass a few years ago, I am reluctant to give plants descended from rice I have found until I have confirmed it actually IS rice.)