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Saussurea americana is a species of flowering plant in the family Asteraceae known by the common name American saw-wort. It is native to northwestern North America from Alaska to far northern California to Montana, where it grows in mountain habitat, such as meadows and forests. It is a perennial herb producing one or more hairy, glandular, erect stems up to a meter tall or more from a thick caudex. The lance-shaped leaves are up to 15 centimeters long and have toothed edges, especially the larger lower leaves. The inflorescence is a cluster of several flower heads, each a bullet-shaped body covered in purple or purple-tinged green phyllaries. The head opens at the tip to bloom with several white to purple tubular disc florets; there are no ray florets. The fruit is an achene tipped with a pappus, the whole unit sometimes exceeding a centimeter in length.
Saussurea americana is a species of flowering plant in the family Asteraceae known by the common name American saw-wort. It is native to northwestern North America from Alaska to far northern California to Montana, where it grows in mountain habitat, such as meadows and forests. It is a perennial herb producing one or more hairy, glandular, erect stems up to a meter tall or more from a thick caudex. The lance-shaped leaves are up to 15 centimeters long and have toothed edges, especially the larger lower leaves. The inflorescence is a cluster of several flower heads, each a bullet-shaped body covered in purple or purple-tinged green phyllaries. The head opens at the tip to bloom with several white to purple tubular disc florets; there are no ray florets. The fruit is an achene tipped with a pappus, the whole unit sometimes exceeding a centimeter in length.
Saussurea americana es una especie de la familia de las asteráceas. Es originaria del noroeste de Norteamérica desde Alaska al norte de California y Montana, donde crece en hábitat montañoso, en las praderas y los bosques.
Es una hierba perenne que produce uno o más tallos erectos glandulares peludos, de hasta un metro de altura o más de una espesa caudex. Las hojas son lanceoladas de hasta 15 centímetros de largo y tienen los bordes dentados, especialmente las hojas bajas más grandes. La inflorescencia es un racimo de varias cabezas de flores, cada cuerpo cubierto de brácteas de color verde morado o teñido de púrpura. El fruto es un aquenio con un vilano, toda la unidad a veces es superior a un centímetro de longitud.
Saussurea americana fue descrita por D.C.Eaton y publicado en Botanical Gazette 6(11): 283. 1881.[1][2]
Saussurea: nombre genérico que fue nombrado por De Candolle en honor de Nicolas-Théodore de Saussure (1767-1845).
americana: epíteto geográfico que alude a su localización en América.
Saussurea americana es una especie de la familia de las asteráceas. Es originaria del noroeste de Norteamérica desde Alaska al norte de California y Montana, donde crece en hábitat montañoso, en las praderas y los bosques.
Saussurea americana là một loài thực vật có hoa trong họ Cúc. Loài này được D.C.Eaton miêu tả khoa học đầu tiên năm 1881.[1]
Saussurea americana là một loài thực vật có hoa trong họ Cúc. Loài này được D.C.Eaton miêu tả khoa học đầu tiên năm 1881.
