The genus Amsinckia can be difficult to narrow down to species, but I think we have here in Tucson A. Tessellata and A. menziesii. https://en.wikipedia.org/wiki/Amsinckia
My 8 year old son pointed it out and said "Hey Dad, that's fiddleneck!" So, I brought a little home. This is young - the flowers are just barely coming out and the spines are soft.
Here is a PMax stack with 5x BD darkfield.
And cross-eyed stereo:
And, while it should go in the macro section, I thought I would just continue this post with a 2x Edmund LWD (Mitutoyo clone) stack.
As usual, larger versions and parallel stereo are on my site.
(Dang that kid! )
Mike
Amsinckia (fiddleneck) immature
Moderators: rjlittlefield, ChrisR, Chris S., Pau
- carlos.uruguay
- Posts: 5358
- Joined: Thu Feb 23, 2012 8:05 pm
- Location: Uruguay - Montevideo - America del Sur
- Contact: