Abutilon theophrasti

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5439889
Taxonomy
Kingdom: Plantae
Phylum: Magnoliophyta
Class: Magnoliopsida
Order: Malvales
Family: Malvaceae
Genus: Abutilon
Species: theophrasti
Scientific Name
Abutilon theophrasti
Medik
Common Names

velvetleaf, butterprint, buttonweed, Indian mallow, velvetleaf Indian mallow, pie-maker

Contents

Overview

Appearance

Abutilon theophrasti is an erect annual herb with a shrub like growth habit. They can reach 7 ft. (2.1 m) in height and are often unbranched. Stems are erect and covered with soft hairs. The plant’s taproots have fibrous root systems.

Foliage

Leaves are alternate, heart-shaped, and acuminate (gradually tapering to a point). Leaves are approximately 2-6 in. (5.1-15.2 cm) long and wide. They are densely hairy on both surfaces, with toothed margins. Leaves have palmate venation (veins originate from a common point). The leaves emit an unpleasant odor when crushed.

Flowers

Flowers can be found singly or in clusters. They are yellow with 5 petals and 0.4-1 in. (1-2.5 cm) in diameter. Flowering occurs from July through August

Fruit

Abutilon theophrasti fruit is a circular capsule fruit about 1 in. (2.5 cm) in diameter. Each capsule contains a ring of 'prickles' around the upper edge. Fruits contain 2 to 3 seeds each.

Ecological Threat

Abutilon theophrasti is a native of China. Cultivated as a source of fiber and oil; it has escaped cultivation invading orchards, cotton, corn, soybeans, and vegetable fields causing serious damage. Abutilon theophrasti seeds can remain viable in the soil for over 50 years. It is especially invasive in disturbed habitats. It is found across the United States.

Herbicide Resistance[1]

Populations of this plant exist in the United States that are resistant to Photosystem II inhibitors (C1/5)

Resources

  1. The International Survey of Herbicide Resistant Weeds. Online. Internet. Heap, I., The International Survey of Herbicide Resistant Weeds. Online. Internet. Friday, November 15, 2013.

Cited References

Images from Bugwood.org

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