Yes, I'll certainly try to collect seeds from the pyrethrum - I'll let you know how it goes.
That is a lovely astragalus! I like the sagebrush behind it in the photo too - just picked one up at the local rock garden club plant sale in May.
Did you scarify the seeds? It's not necessary but will give the quickest germination for most Fabaceae. Since I grow most seed indoors, I do want quick germination and often get it in a day or two after scarifying by rubbing the seeds on a flat file to abrade through the hard seed coat.
Yes, I'd say it's either Edraianthus tenuifolius or E. graminifolius - looks like it has recovered nicely!
