Borage seeds and a problem

I grew borage from seed last year and, despite the weeds, they grew into strong plants. I have been planning to save the seeds to grow some more; I realise that they will self seed anyway, but want to raise the plants myself and position them in other areas of the garden. Some of the seeds are set and I have removed them, but some/part of the plants are not looking very healthy ... they are covered in white as you can see in the photos. I picked these parts off, complete with seed heads and am wondering a) what the white stuff is, and b) if the almost/unripened seeds will be viable; I haven't removed these seeds from the cut stem - just the black ripened seeds. Many of the seeds have already dropped and dispersed. The plant has fallen over, amongst the buttercups (bad gardener 🤦🏼‍♀️). It's a long time since I have grown borage and cannot remember whether the 'white' is normal.
Any thoughts please?