11. The other species are characterized by a staminode that is homologous to the only stamen of monandrous orchids. 12. Inside the mouth are long filamentous stamens and a flat, hairy, yellow sterile stamen called a staminode . 13. Inside the mouth are long filamentous stamens and one flat, yellow-hairy sterile stamen called a staminode . 14. Inside the flower are shiny filamentous stamens holding anthers and a flat, densely hairy sterile stamen called a staminode . 15. The inflorescence is a panicle of flowers resembling penstemons, widely tubular with two lobed lips and a hairy staminode . 16. Within the mouth are long stamen filaments bearing anthers, and a flat, hairless, sterile stamen called a staminode . 17. Pointed lobes curl away from the mouth of the flower, revealing a hairy yellow sterile stamen known as a staminode . 18. The flowers are blue-purple, glandular on the outer surface and mostly hairless inside except for the hairy staminode . 19. The mouth of the flower has hairs along the floor and a tuft of hairs at the tip of the staminode . 20. The mouth of the flower has three lower lobes streaked with dark lines, a hairy throat and a long-haired, protruding staminode .
