What Is the Difference Between Chunlan and Huilan? A Quick Guide to Telling the Two Orchids Apart
Leaf Stalk Ring
The leaf stalk ring is one point that sets them apart, and it is a very obvious one. Chunlan actually has this feature, while Huilan has none at all.
Leaf Count
The number of leaves also differs greatly. The former has rather rough leaves that are wide and long, while the latter is smoother and narrower and shorter than the former. Chunlan has only about four or five leaves, while Huilan has more, with a minimum of seven and a maximum of fifteen.
Leaf Veins
Huilan's leaf veins are actually quite distinctive. If you hold it up to the light, you can see that it has very dense veins that are also transparent, about seven to nine in number. The underside of Huilan's leaves, meanwhile, has raised ridges, and if held up to the light these ridges appear semi-transparent.
Flowers
Chunlan has relatively few flowers, usually just one flower per scape, and two at most. Huilan's number is much greater: generally a single scape carries many flowers, roughly between six and twelve. Overall, this is the orchid with the greatest flower count, though of course this refers to orchids in China, not all flowers, and its flower stalk is relatively thick.
As for blooming time, the former generally blooms in February and March, while the latter blooms from March to May. In short, there are still many differences between them, so if you want to identify them carefully, you certainly can.