|Colchicum 'Glory of Heemstede'|
Colchicums can be frustratingly difficult to identify, and that's as true of the wild forms as it is of the garden forms. Among the garden forms, some stand out for certain characteristics or combinations of characteristics. Things to look for are the width of the tepals, the presence or absence of tessellation, the size of the flower, the shape of the flower, the blooming season, the presence or absence of a white throat, the presence or absence of color on the outside of the tube (the structure which looks like the stem of the flower but is not). Some are fragrant (in the good sense), some have an odor (i.e. something not particularly pleasant).
And they vary in the intensity of their color. The one shown here, now over a century old, is 'Glory of Heemstede', and it has the most intense color of any of the colchicums I know.