In botany and mycology, a haustorium is a rootlike structure that grows into or around another structure to absorb water or nutrients. For example, in mistletoe or members of the broomrape family, the
Hyaloperonospora parasitica: hyphae and haustoria
Haustoria of creeping mistletoe in a scribbly gum
A coconut sprout, the edible haustorium of germinating coconut seeds
Mistletoe is the common name for obligate hemiparasitic plants in the order Santalales. They are attached to their host tree or shrub by a structure called the haustorium, through which they extract w
Haustorium
…a haustorium (plural haustoria) is a rootlike structure that grows into or around another structure to absorb water or nutrients. For example, in mistletoe or members of the broomrape family, the structure penetrates the host's tissue and draws nutrients from it. In mycology, it refers to the appendage or…
European mistletoe (Viscum album) attached to a dormant common aspen (Populus tremula)
European mistletoe growing on an apple tree (Malus domestica); despite the mistletoe's presence, the apple tree is still able to bear fruit.
The Mistletoe Seller by Adrien Barrère