Sesbania punicea
(Cav.) Benth. (Rattlebox ) |
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Family: Fabaceae (Pea Family) Synonym(s): Duration: Perennial Habit: Shrub
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Description: Sesbania punicea is a deciduous shrub or small tree, up to 4 meters tall. It has 10-20 cm long compound leaves each with 10-40 small dark-green leaflets in opposite pairs. Each leaflet is oblong and ends in a tiny pointed tip. The showy coral or red flowers appear in spring and early summer in dense sprays (up to 25 cm long) that droop or project outwards. The 2-3 cm long flowers are shaped like pea flowers. A characteristic feature are the seed pods, which are longitudinally 4-winged, oblong, 6-8 cm long, 1 cm broad, borne on short 1.5 cm stalks and may be dispersed by water. The tip of the pod is sharply pointed. The 4-10 seeds are separated by partitions and are freed only when the pod eventually breaks open. The legume genus Sesbania includes a number of annual and woody species, many of commercial value. History: Rattlebox is thought to have a limited natural range; probably confined to the banks and islands of the Parana and Uruguay Rivers in Argentina, western Uruguay and southern Brazil. However, it was widely cultivated after 'discovery' and has been planted in gardens in many countries around the world. Seeds are still readily available from distributors in many parts of the world which will undoubtedly enhance invasions of S. punicea in region of the world where the plants are not yet established. Biology & Spread: Sesbania punicea relies almost exclusively on flowing water for dispersal. The seeds are retained in the pods which fall from the trees and float downstream, dispersing the seeds which sink as the pods disintegrate with time. Ecological Threat: It can fully mature in one year and produces thousands of highly viable seeds that will remain dormant for several years in the soil. This allows it to displace native vegetation and form dense thickets that push out wildlife. It has the greatest environmental impacts near water bodies and along river or stream banks because it can decrease water flow and quality, and reduce recreation for boaters, fishers, and other activities. US Habitat: Thickets, marshy shorelines, disturbed areas. Distribution
Resembles/Alternatives: The only native congener to Rattlebox in North America is a plant called Rattlebush, Sesbania drummondii.
Management: Mechanical: Young plants of Sesbania punicea can be pulled by hand or with a weed wrench. The root system is not very large, especially in waterlogged situations, so pulling is relatively easy. Flooding is not effective, but trees standing in water could be cut below the water line (without an herbicide application).
USE PESTICIDES WISELY: ALWAYS READ THE ENTIRE PESTICIDE LABEL CAREFULLY, FOLLOW ALL MIXING AND APPLICATION INSTRUCTIONS AND WEAR ALL RECOMMENDED PERSONAL PROTECTIVE GEAR AND CLOTHING. CONTACT YOUR STATE DEPARTMENT OF AGRICULTURE FOR ANY ADDITIONAL PESTICIDE USE REQUIREMENTS, RESTRICTIONS OR RECOMMENDATIONS. MENTION OF PESTICIDE PRODUCTS ON THIS WEB SITE DOES NOT CONSTITUTE ENDORSEMENT OF ANY MATERIAL. Listing Source
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Last Updated: 2024-02-08 by TISI |
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