Might have trouble pollinatingthis one

[iann]

Or at least pollinating anything else from it. Distinct lack of pollen, although there is a bit on some shorter stamens right in the centre . I usually notice this on hybrids, so I don't know if some other genes have crept in. Others from the same batch of seed are normal.

[iann]

Here's one with pollen.

And here's an Ecinocereus with none.

[iann]

Lastly, plenty of pollen in this Echinocereus flower, but nowhere for it to go.

[el48tel]

Cotton wool bud. Wrap in foil. Put in fridge.
It'll keep 4 months in fridge. Probably until next spring in the freezer.