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They are shrubs and small to medium-sized trees growing to 3–25 m tall. The leaves are opposite, simple. The flowers are produced in feathery panicles, with a corolla subdivided into four slender lobes; they are white, pale yellow, or tinged pink. The fruit is a drupe containing a single seed. [2]
The leaves are opposite, simple, ovate or oblong, 7.5 to 20 centimetres (3.0 to 7.9 in) long and 2.5 to 10 centimetres (0.98 to 3.94 in) broad, with a petiole 2 centimetres (0.79 in) long, and an entire margin; they are hairless above, and finely downy below, particularly along the veins, and turn yellow in fall.
The drooping panicle with many narrow corolla lobes may appear fringelike, hence the plant's common name. The fruit is a drupe up to 2.5 centimeters long which ripens purple or brownish. The plant reproduces sexually via seed and vegetatively by growing new shoots. It resprouts after its aboveground parts are burned away in the fire.
Invasive species are often grouped by threat levels that vary from county to county from very high impact to remarkable increased growth. The species below are by no means comprehensive and are listed in type order rather than level of threat [ 1 ] [ 2 ] [ 3 ]
Most common hosts are: citrus trees, papayas, sweet potatoes, ornamental plants, sugarcane, panicum grasses, peanut, corn, and other plant species. The citrus root weevil is known to feed on over 270 species of plants from 59 different families. Diestrammena asynamora: greenhouse camel cricket Insecta: Orthoptera: Rhaphidophoridae: None ...
Notable early examples of live plant harbored pests—such as beech scale, chestnut blight, and white pine blister rust—led to the Plant Quarantine Act of 1912 and regulations from the US Department of Agriculture in 1919. Despite these and subsequent regulations, insects and pathogens have continued to be introduced through live plants. [1]
Invasive Plants in Maryland. University of Maryland Extension, Home and Garden Information Center. Maryland: Commonly Planted Invasive Plants. Maryland Department of Natural Resources, Wildlife and Heritage Service. marylandbiodiversity.com Maryland Biodiversity Project. mdinvasivesp.org Maryland Invasive Species Council.
Shrubs can be either deciduous or evergreen. They are distinguished from trees by their multiple stems and shorter height, less than 6–10 m (20–33 ft) tall. [1] [2] Small shrubs, less than 2 m (6.6 ft) tall are sometimes termed as subshrubs. Many botanical groups have species that are shrubs, and others that are trees and herbaceous plants ...
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