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Eupatorium altissimum, with the common names tall thoroughwort and tall boneset, is a perennial herbaceous plant in the Asteraceae family with a native range including much of the eastern and central United States and Canada. It is a tall plant found in open woods, prairies, fields, and waste areas, with white flowers that bloom in the late summer and fall.
Eupatorium altissimum is a perennial herb sometimes more than 150 cm (5 feet) tall.
Leaves and stems are covered with whitish hairs. Leaves are opposite on the stem and either are sessile or have very short petioles. They are narrow, 5–12 centimetres (2–5 in) long and 8–30 millimetres (0.3–1.2 in) wide.[2] Leaves are lanceolate with 3 prominent veins underneath and teeth appearing only above the middle of the leaves.[3]
E. altissimum produces a large number of small dull white flower heads in a large flat-topped array at the top of the plant. Each head generally has 5 disc florets but no ray florets.[4]
The species is often confused with Brickellia eupatorioides (false boneset) because the flowers look similar and because both grow on limestone soils. However, the leaves of E. altissium are opposite with 3 prominent veins, while the leaves of B. eupatoioides are alternate with 1 prominent vein. Also, E. altissium flower heads consist of 5 florets, while the flower heads of B. eupatorioides have 6 to 15 florets.[5]
Eupatorium altissimum is part of Eupatorium even when that genus is defined narrowly to include about 40 species of mostly white-flowered plants of North America, Asia, and Europe.[6][7]
E. altissimum is native to eastern and central North America, from Ontario in the north, Nebraska in the west, Texas and the Florida Panhandle in the south, and Massachusetts in the east.[8] It almost always grows on limestone soils in prairies, open woods, fields, and neglected areas.[3]
The plant blooms from August to October.[3] It attracts various pollinators and is a larval host plant for Schinia trifascia (three-lined flower moth.[9]
It can hybridize with Eupatorium serotinum.[4]
Eupatorium altissimum, with the common names tall thoroughwort and tall boneset, is a perennial herbaceous plant in the Asteraceae family with a native range including much of the eastern and central United States and Canada. It is a tall plant found in open woods, prairies, fields, and waste areas, with white flowers that bloom in the late summer and fall.
Eupatorium altissimum es una planta herbácea de la familia Asteraceae natural de Norteamérica, desde Ontario hasta Nebraska, este de Texas, Florida, y Massachusetts. Casi siempre crece en suelos de caliza, al igual que Brickellia eupatorioides, con la que se confunde a menudo. Se pueden hibridar con Eupatorium serotinum.[2]
Eupatorium altissimum es una hierba perenne a veces alcanzan un tamaño de más de 150 cm de altura. Las hojas y tallos están cubiertos de pelos blanquecinos. La planta produce un gran número de pequeñas cabezas de flores blancas en una gran variedad de cimas planas en la parte superior de la planta. Cada cabeza tiene generalmente 5 floretes del disco, pero no flores liguladas.[2][3][4]
Eupatorium altissimum fue descrita por Carlos Linneo y publicado en Species Plantarum 2: 837. 1753.[5][6]
Eupatorium: nombre genérico que viene del griego y significa "de padre noble". Cuyo nombre se refiere a Mitrídates el Grande, que era el rey del Ponto en el siglo I aC y a quien se le atribuye el primer uso de la medicina. De hecho, las especies de este género, a lo largo del tiempo, han tomado diversas denominaciones vulgares referidas sobre todo a la medicina popular, esto sirve para resaltar las propiedades de Eupatoria, aunque actualmente este uso se ha reducido algo debido a algunas sustancias hepatotóxicas presentes en estas plantas.
altissimum: epíteto latíno que significa "el más alto".[7]
Eupatorium altissimum es una planta herbácea de la familia Asteraceae natural de Norteamérica, desde Ontario hasta Nebraska, este de Texas, Florida, y Massachusetts. Casi siempre crece en suelos de caliza, al igual que Brickellia eupatorioides, con la que se confunde a menudo. Se pueden hibridar con Eupatorium serotinum.
Eupatorium altissimum est une espèce de plantes nord-américaine de la famille des Asteracées.
Eupatorium altissimum là một loài thực vật có hoa trong họ Cúc. Loài này được L. mô tả khoa học đầu tiên năm 1753.[1]
Bài viết tông cúc Eupatorieae này vẫn còn sơ khai. Bạn có thể giúp Wikipedia bằng cách mở rộng nội dung để bài được hoàn chỉnh hơn. Eupatorium altissimum là một loài thực vật có hoa trong họ Cúc. Loài này được L. mô tả khoa học đầu tiên năm 1753.
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