See Also: overwintering(medicine)

henna (sh) and overwintering (medicine)


henna (sh)




Tropical shrub or small tree (Lawsonia inermis) of the loosestrife family, native to northern Africa, Asia, and Australia, and the reddish-brown dye obtained from its leaves.

The plant bears small opposite leaves and small, fragrant, white to red flowers. In addition to being grown for its dye, it is used as an ornamental.


overwintering (medicine)


overwintering
Persistence of an infectious agent in its vector for extended periods, such as the cooler winter months, during which the vector has no opportunity to be reinfected or to infect another host.