The white flower above is known by several names: Indian pipe, Ghost plant and Corpse plant. Like squawroot, Indian pipe can’t meet its own nutritional needs since it has no chlorophyll. It leads a parasitic life just as squawroot does.
While squawroot gets its nutrition by directly tapping into the roots of oak trees, Indian pipe gets its nutrition more indirectly. It’s host organism is a fungus, a member of the Russulaceae family. This fungus gets its nutrition from tree roots. However the Russulaceae fungus has a symbiotic relation with its tree, so the tree benefits from the relationship. (This kind of symbiotic relationship between a fungus and a tree is known as a mycorrhizal relationship). However squawroot just sponges off the fungus, benefiting only itself. Since Indian pipe feeds off a fungus which feeds off a tree, Indian pipe ultimately is depending on the tree and its ability to photosynthesize and make food.
Unlike squawroot which has many flowers emerging from each stalk, Indian pipe only has a single flower per stalk. The stalk of the Indian pipe does not have true leaves, but it does have scales. Typically Indian pipe is white, but sometimes it has a pinkish cast. In rare cases, it’s actually red. Like other flowering plants, it depends on a pollinator (like bees) to reproduce. Once it has been pollinated, it quickly goes from white to an ugly black. I’ve never taken a photo of one of these ugly, withering black flowers because …. well, because they’re ugly. But next time I see one, I will.
Earlier this spring I saw many wildflowers during my walks in the forest. However, now that the forest floors are dark and shady, the flowers have mostly disappeared. Since Indian pipe doesn’t depend on sunlight, its flowers will be emerging off and on throughout the summer the whole way into September. Nonetheless Indian pipe is not a common plant because it’s parasitic lifestyle is so dependent on a number of conditions being just right.
I’m going to close with a couple more photos of Indian pipe, then some links to sites where you can learn more.
- Monotropa uniflora: Indian pipe article at Wikipedia
- Russulaceae: This is the family of fungus on which Indian pipe feeds.
- Mycorrhiza: This describes the symbiotic relationship between some fungus and members of the plant kingdom.
- Indian Pipe: A nice article about Indian pipe by the Somers Land Trust of New York.
More on Plants without Chlorophyll