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Phytolacca

life science Maturity 5-7 Next article →

Phytolacca is a genus of plants found across many parts of the world. These plants are native to North America, South America, and East Asia. You might recognize them by common names like pokeweed, pokebush, or pokeberry. Some people also call them inkberry or ombú. The scientific name comes from two ancient languages. The Greek word "phyton" means plant. The Latin word "lacca" refers to a red dye.

Inkweed (16030956467)
Inkweed (16030956467)

This group of plants includes about 25 to 35 different species. Most of these species are perennial herbs or shrubs. However, some species grow much larger. For example, Phytolacca dioica, known as the ombú, grows as a substantial tree.

Ombú Cartuja 001
Ombú Cartuja 001

Other species, such as Phytolacca weberbaueri from Peru, also reach tree size. These larger plants often have massive, buttressed bases at their trunks. Their wood is very soft and can store a high amount of water. This water storage helps the trees survive through droughts and grass fires.

There are many specific types of Phytolacca living in different environments. Phytolacca americana is the American pokeweed found in North America. In South America, you can find Phytolacca australis and Phytolacca bogotensis. Some species live in specific regions, like Phytolacca sandwicensis in Hawaii. There is also Phytolacca acinosa, which is called Indian poke. These plants are found on every continent except for Antarctica. They have even been introduced to Europe and Australasia.

Watching a Phytolacca plant grow reveals many interesting physical features. The stems can appear in colors like green, pink, or red. They have alternate simple leaves that are pointed at the ends. These leaves can be deciduous, meaning they fall off, or evergreen. The flowers grow in long clusters called racemes at the ends of the stems. These flowers are usually greenish-white or pink. After flowering, they develop into round berries. These berries start out green and ripen into a dark purple or black color.

Many parts of the plant contain substances that are poisonous to mammals. These toxic parts include the leaves, stems, roots, blossoms, and berries. Scientists have identified specific toxins like phytolaccatoxin and phytolaccagenin. They have also found alkaloids like phytolaccine and a glycoprotein. Because of these toxins, humans must be very careful. In the southern United States, people sometimes make a dish called poke sallet. To make it safe, they cook the leaves three times in three different changes of boiling water. However, the roots must never be eaten because they cannot be made safe.

While toxins affect mammals, birds and box turtles play a helpful role. Birds eat the berries without being affected by the toxins. The seeds inside the berries have very hard outer shells. These shells stay intact while they move through the bird's digestive system. The seeds are eventually eliminated whole in new locations. This process helps the plants spread to new areas. This relationship between the plant and the animals is a key part of how the genus survives.

Evidence suggests that plants like Phytolacca have existed for a very long time. Scientists have found fossils that look very similar to these plants. A fossil found in the Cerro del Pueblo Formation in Coahuila, Mexico, shows this connection. This fossil dates back to the Upper Cretaceous period. It is a permineralized fruit that contains berries with six sections, or locules. Each section held a single seed with a curved embryo. While this fossil is similar to Phytolacca, it belongs to a new genus called Coahuilacarpon phytolaccoides.

Inkweed (16030956467)
Inkweed (16030956467)
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🖼️ Images & Media (2)
File:Ombú Cartuja 001.jpg
Ombú Cartuja 001.jpg
File:Inkweed (16030956467).jpg
Inkweed (16030956467).jpg
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