Thanks, Iris. Does it have a serious answer as well? :-)

I ask because I can't find a UK botanical reference that separates them, and
horticultural sources seem to apply the same cultivar names to either
specific quite happily.

"Iris Cohen" wrote in message
...
What's the difference between H. algeriensis and H. canariensis, by the
way?


H. algeriensis is always found in the company of camels. H. canariensis is
bright yellow, but it doesn't sing.

Iris,
Central NY, Zone 5a, Sunset Zone 40
"If we see light at the end of the tunnel, It's the light of the oncoming
train."
Robert Lowell (1917-1977)