What is the definition of a Habano? I see it in Don's description of his Nicaraguan filler and know it is used in the name of a wrapper variety (Habano 2000). Aside from that, I have no idea.
From http://www.en.cigarclan.com/index.php/component/content/article/888
'Habano' may refer to the characteristics - and thus the genetics - of tobacco plant used to produce the cigar leaves. To be more precise it is called a cultivar, meaning a plant that is specially selected for desirable characteristics and that can be maintained among generations by simple propagation. Habano, habano 2000, habano 1998 are cultivars belonging to the Nicotiana tabaccum L. species because they have different characteristics that can naturally transfers from parents to children, but they are not sufficiently different to be considered different varieties. Other N. tabaccum L. cultivars used in the cigar industry are for instance Corojo 99, Criollo 98, Piloto Cubano, Connecticut, Indonesia, Cameron, etc.
Used in this context 'habano' stands for the cultivar of the Nicotiana tabaccum L. plant that produced the cigar leaves. The conventional way to write it is Nicotiana tabaccum 'habano'.