bilabiate

Flower shape terminology diagram labelled, pen and ink with colour.  Illustrating many of the more common terms.

Yellow archangel Lamiastrum galeobdolon plant

Toothwort Lathrea squamaria flower with lack of chlorophyll explaining its parasitic life style

Greater bladderwort Utricularia vulgaris pencil drawing showing flower above the water and the network of veins underwater with the bladder traps to catch aquatic microorganisms