I have never heard of a common name for Colquhounia. I suppose "Himalayan Mint Shrub" is as good as any, though really it tells you nothing more than it's a shrub, it's in the mint family, and it comes from the Himalayas. Boring! If Dee or plantsplus don't manage to post a mystery flower in the next few days, I suggest someone else should have a go. It's an activity that seems to revive interest in this forum. I remember 2-3 years ago we had the same sort of thing quite regularly.

It's a Desmodium (tick trefoil). Not sure of the species. The little triangular segments of the seed pod will stick to clothing, pets, etc.

Two Globularia hybrids are commonly used here: x indubia and 'Blue Eyes'.

Check out Narcissus papyraceus. This is a fall blooming narcissus often grouped with the paperwhites. But it typically has a pretty strong scent.