In article , Tim Tyler writes
Nasturtiums are indeed naturally pollinated by humming birds:
``Many flowers typically pollinated by hummingbirds, such as nasturtiums,
don't need to be fragrant because their pollination partners have little
sense of smell.''
- http://www.kidsgardening.com/themes/pollinator2.asp
Now the humming bird has been mentioned, the spur's "function"
now seems clear enough - thanks!
And to confirm it, I spent a few minutes this morning nipping off the
end of the spur on a few nasturtiums, squeezing out a drop of liquid and
tasting its sweetness ;-)
--
Kay
"Do not insult the crocodile until you have crossed the river"