Glaucousness is the visual expression of waxiness on the leaves and stem, and is the preferred term. Plants may be either 'waxy, glaucous' (the normal situation), 'waxy, non-glaucous' (e.g., Mentana), or 'low-wax, non-glaucous' (e.g., AUS 2598). The expression of glaucousness depends on the arrangement of wax deposits rather than the amount of wax (Johnson et al., 1983).
Note that these genes are different from those responsible for waxy endosperm characteristics, which are in the Waxy proteins gene class.

Glaucousness Genes and Alleles:
Link to Glaucousness genes at Komugi

Glaucousness Gene Class

• W1 (Triticum) gene
• W2 (Triticum) gene
• W3 (Triticum) gene
• W4 (Triticum) gene
• w1w2 (Triticum) gene
• Iw1 (Triticum) gene
• Iw2 (Triticum) gene
• Iw3(Triticum) gene
• W1 (Triticum) allele
• w1 (Triticum) allele
• W1^I^ (Triticum) allele
• W2a (Triticum) allele
• W2b (Triticum) allele
• W2^I^ (Triticum) allele
• w3 (Triticum) allele
• w4 (Triticum) allele

Spike Glaucousness Gene Class

• Ws (Triticum) gene
• ws (Triticum) allele