Hello everyone,
I gathered these pods in late fall on the family ranch in Montana (Wheatland, Golden Valley and Sweet Grass counties). Dry, clay soil (gumbo when wet). Full sun on the top of a bench (not in a ravine or canyon or along a waterway). All that was left at that time were low, dry stems and the desiccated seed pods.
The image here
https://www.earth.com/earthped... shows a seed pod (upper left corner) that appears to be starting to dry down. It seems to be a reasonable match for the capsules in the pics below.
The brown seeds are plumper than the black seeds. Initially I thought the black ones might be immature, but the couple pics I've run across show
A. crassicarpus has black seeds rather than brown seeds. Maybe it's the brown seeds that aren't mature. I plan to sow some of each to see what, if anything, happens.
Thoughts anyone?