Passerina (plant) large enough to cover them. This gives the plants a characteristic plaited or corded appearance. The flowers of some species are borne in terminal spikes, whereas other species bear them in a four-flowered head. Bracts, usually broader than leaves and larger than the flowers, subtend each flower. This is one helpful distinction between specimens of "Passerina" and plants in the genus "Struthiola". The calyx has four sepals, forming a flask-shaped or subcylindrical tube. At the mouth the sepals spread into lobes that are shorter than the tube. There are no petals, but the lobes of the sepals are quite colourfully
Glandularia gooddingii Glandularia gooddingii Glandularia gooddingii is a species of flowering plant in the verbena family known by the common name southwestern mock vervain. It is native to the southwestern United States and northern Mexico, where it occurs in sandy and rocky desert habitat. It is a perennial herb producing several hairy, decumbent to erect stems up to 45 centimeters long. The hairy leaves are generally divided at the base into a few lobes, which are edged with large teeth or small lobes. The plant blooms in large, dense, head-like spikes of many flowers. Each flower has a calyx of hairy sepals