Hi Lin.
I can now see an open, yellow tubular flower and yes, Hetty was referring to the form but in order to be able to determine anything one has to see the flowers and leaves. There are many Dyckia sp. and hybrids which could be difficult to separate, however in order to first determine that it is a Dyckia one really needs to see the whole plant, we know how some plants are mis-named or have had a name change somewhere in history.
There's one on the following site which has a similar form, but the flowers are not as long.
http://www.bromtravels.nl/ht/d...
