It was intro-duced as a soil building cover crop on sandy soils. Today, a management concern, these pest plants can be very invasive to natural areas. As pretty as they are, they are an invasive and poisonous plant (deadly to livestock and horses) that was introduced as a cover crop around 1914, yet they serve as host for the Ornate Bella Moth. Many invasive species are first introduced purposely by humans to be used as ornamentals in the lawn or garden. Showy rattlebox (Crotalaria spectabilis Roth)(Syn. This species is Introduced in the United States. illeg. The larvae often feed upon and destroy the seeds, a positive when it comes to weedy invasive plants. This one, smooth rattlebox, Crotalaria pallida, is an import from Africa. Sesbania punicea (Spanish gold, rattlebox, or scarlet sesban) is an ornamental shrub with reddish-orange flowers.It has deciduous leaves and grows to a height of 15 feet (4.5 m). Rattlebox Sesbania punicea. showy rattlebox Crotalaria spectabilis Roth . Hitchc. Flashback to November when the Crotalaria spectabilis, aka Showy Rattlebox, was in full bloom. Invasive species are classified as such due to its foreign nature to the environment in question and its ability to cause environmental or economic harm. Showy rattlebox, a tall legume that’s invasive in South Carolina, is vital to the bella moth as food and home. Considering the high invasive potential of some other Crotalaria species such as C. retusa and C. spectabilis, and given that C. maypurensis is listed as invasive in Cuba (Oviedo et al., 2012), the risk of introduction of C. maypurensis beyond its current distribution is therefore moderate to high. At JDSP there are seven rattlebox species, but just two are native to the park. Fairchild’s writings suggest a variety of exotic rattlebox plants in the genus Crotalaria were introduced to South Florida about 100 years ago. Invasive Listing Sources. Crotalaria retzii A.S. Photo credit: Doug Mayo Commonly known as Showy Rattlebox, Showy Crotalaria is a fast growing summer annual that germinates in early spring and flowers in late summer. The nonna-tive species can spread easily and effectively through seed dispersal (each pod contains 20+ seeds). ... Invasive Species. South Carolina Exotic Pest Plant Council; Taxonomic Rank. The first noted occurrence of exotic Crotalaria in the park was in 1992. This plant has a high demand for water, and thrives in swamps or wet areas. [anomalous]), sometimes called showy crotalaria, is a non-native, annual legume native to Indomalaysia. The website also provides access to a database and images of herbarium specimens found at the University of South Florida and other herbaria. Among them is Crotalaria spectabilis, showy rattlebox, which particularly stands out with its 6- to 8 feet-tall plants and beautiful yellow flowers. Showy rattlebox can be poisonous to livestock, particularly when Showy crotalaria is a common weed in the Panhandle that is toxic to livestock. The Atlas of Florida Plants provides a source of information for the distribution of plants within the state and taxonomic information. Website developed by The University of Georgia - Center for Invasive Species and Ecosystem Health and the National Park Service in cooperation with the Invasive Plant Atlas of New England, Invasive Plant Control, Inc., USDA Forest Service, But all parts of the plant contain toxins poisonous to farm animals. States Counties ... State Lists - This map identifies those states that have this species on their invasive species list or law. ; C. sericea Retz., nom. Smooth rattlebox is an upright plant with leaflets of three, and produces a large, dense spike of showy … All rattlebox species have two things in common: yellow flowers and a pea-pod fruit that rattles when ripe. 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