Overview

Distribution

National Distribution

United States

Origin: Native

Regularity: Regularly occurring

Currently: Present

Confidence: Confident

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Global Range: Kauai, Oahu, Molokai, Maui, Hawaii.
Mesic and wet forests.

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Ecology

Habitat

Comments: Mesic to wet forest, in open areas or streambeds, straggling or climbing. (120-)680-1980 m.

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Conservation

Conservation Status

National NatureServe Conservation Status

United States

Rounded National Status Rank: N2 - Imperiled

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NatureServe Conservation Status

Rounded Global Status Rank: G2 - Imperiled

Reasons: Kauai (Rare. I think I have seen it only once there.), Oahu (Recorded only from the Waianae Mountains. I have not seen any on the island.), Molokai (I have not seen any.), Maui, Hawaii.
Generally rather rare.
Mesic and wet forests.

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Wikipedia

Phytolacca sandwicensis

Overview[edit]

Phytolacca sandwicensis, also known as the Pokeweed of Hawaii, is a member of the Phytolaccaceae family and is a flowering and fruit bearing species endemic to the Hawaiian Islands. Locally it is referred to as pōpolo kū mai.

The genus Phytolacca has about 25 different species within it. They are commonly found in North America, South America, East Asia, New Zealand, with one species being found on the Hawaiian Islands.

The pokeweed of Hawaii can grow to a size of anywhere from 1 to greater than 3 feet in height and can spread to over 10 feet in diameter. This low and wide style of growing has made it an up-and-coming favorite for landscapers. The pokeweed has been used by the natives there for thousands of years. They would gather the berries of the plant and crush them to make a dark purplish dye for tattooing. The berries themselves are not consumable by humans or mammals, but birds have been able to adapt to combat the toxins which are emitted and do eat the fruits which aids in the process of seed dispersal. Phytolacca sandwicensis is often found in open areas or creek bottoms in wet forests at altitudes ranging from as low as 300 feet above sea level on up to 6500 feet above sea level.

Description[edit]

Phytolacca sandwicensis is a non woody plant which grows to a moderate height of over 3 feet tall and 10 feet across. The flowers which it produces range in color from dark pink, pink, to white typically. The flower is unique because it blooms on a spike of sorts known as inflorescense, which also bears the fruit of the plant. The fruit is typically dark purple in color. The pokeweed has green oval shaped leaves which can be either glaborous, meaning it has no fuzz or hairs, or they can be puberulent, meaning they have hair or fuzz.

Habitat[edit]

Phytolacca sandwicensis is a terrestrial species endemic to the Hawaiian Islands of the Pacific Ocean. It is a rather rare plant to find in the wild. The pokeweed of Hawaii can be found in open areas or stream beds within wet or mesic forests. It is capable of withstanding various elevation extremes ranging from around 300 feet above sea level to 6500 feet above sea level. Phytolacca sandwicensis requires a wet environment to survive with a moderate amount of sunlight exposure. It is capable of living in open areas with lots of light exposure, but for landscaping purposes it has been found that a limited amount of sunlight produces a more desirable color and shape. The pokeweed of Hawaii also prefers to reside in a cinder or organic soil which is well drained.

Pests and Disease[edit]

The pokeweed of Hawaii is susceptible to harm by ants, scale, aphids, and mealy bugs. Scale are tiny parasitic insects that attach themselves to plants and live off of the sap in the plant. The insects appear as tiny bumps and commonly are mistaken for a disease. Mealy bugs are very similar to scale in that they too feed off of the sap of the plant. They have a waxy white outer layer and accrue in bumps which resemble meal. Aphids again feed off the sap but they are simply insects. Ants cut off portions of leaves and bring them back to their colonies for consumption.

Uses[edit]

Traditional Uses[edit]

Traditionally the plant was used by the native islanders as a dye for tattooing. They found that crushing the berries created a desirable purple colored dye.

Modern Uses[edit]

Today Phytolacca sandwicensis is starting to be used as a landscaping choice. The low stature and brilliant coloring combine with the unique berry covered flowering spike make it a potentially ideal plant for covering ground. The plant also seems to be able to respond well and recover from moderate trimming and pruning.

Toxins[edit]

Phytolacca sandwicensis is poisonous to both humans and mammals. It is one of only a few poisonous plants on the Hawaiian Islands. The plant contains multiple triterpene toxins, but the main one is alkaloid phytolaccine. The result of consuming or ingesting the plant is intense digestive discomfort. Also the poison can have an adverse affect on the central nervous system. It also prohibits the creation of any new red blood cells. Birds are able to consume the berries of the plant and be ok. This is because the outer shell of the seeds is not penetrated during ingestion. This means the poison is not released and the bird is able to pass the seeds through its gut and excrete them. This process also aids in the dispersion process.

References[edit]

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