Senecio ampullaceus, also known as Texas ragwort,[1] Texas squaw-weed, Texas groundsel,[3] and Texas butterweed,[4] is a species of Senecio in the family Asteraceae, receiving its Latin name ampullaceus from its flask shaped flower-head.[5] It is recommended for landscape use in its native Texas.[6]
The seedlings of S. ampullaceus often have a purplish color on the undersides of their leaves in the winter, especially along their midrib.[3] Flowering in early–mid spring,[7] Texas ragwort is a tall annual,[8] growing to from 20 centimeters (7.9 in) to 80 centimeters (31 in) tall and similar to S. quaylei.[7]
Stems and leaves: The leaves with broadly winged leaf stalks, grow from single stems; the nodes between leaves getting shorter and shorter higher on the stem. Ovate leaves with pointed tips 3 centimeters (1.2 in) to 10 centimeters (3.9 in) long by 1.5 centimeters (0.59 in) to 4 centimeters (1.6 in) wide with tapered bases. Leaves at the lower portion of the plant have more teeth on their edges than the leaves at the upper portion of the mature plant.[7]
Stems and leaves are covered loosely and unevenly with a mat of fine hairs, occasionally having no hairs.[7]
Flowers: Flowering stalks have 10 to 30 flower heads which as a group make a flat top to the whole plant. Each flower head is surrounded by 2 to 8 bractlets or mini-leaves, each 1 millimeter (0.039 in) to more than 2 millimeters (0.079 in). Approximately 13 green to grayish bracts, 7 millimeters (0.28 in) to 10 millimeters (0.39 in) long surrounding 8 ray florets and an 8 millimeters (0.31 in) to 10 millimeters (0.39 in) corolla.[7]
Fruits: One seeded fruits with rigid pappus.[7]
Roots: Roots relatively thin and branching.[7]
S. ampullaceus prefers altitudes of 100 meters (330 ft) to 800 meters (2,600 ft) in open sandy or disturbed sites.[7]
Native:
or
Current:
{{cite book}}: CS1 maint: location (link) {{cite journal}}: Cite journal requires |journal= (help) {{cite journal}}: Cite journal requires |journal= (help) Senecio ampullaceus, also known as Texas ragwort, Texas squaw-weed, Texas groundsel, and Texas butterweed, is a species of Senecio in the family Asteraceae, receiving its Latin name ampullaceus from its flask shaped flower-head. It is recommended for landscape use in its native Texas.
Senecio ampullaceus es una especie de plantas de la familia Asteraceae. Originaria de los Estados Unidos.[3][4]
Las plántulas de S. ampullaceus a menudo tienen un color morado en el envés de sus hojas en el invierno, especialmente a lo largo de su nervio medio. La floración se produce a principios-mediados de primavera.[5] Los tallos son simples, los nodos entre las hojas cada vez más cortos cuanto más alto en el tallo. Hojas ovadas con puntas de 3 a 10 centímetros de largo por 1,5 a 4 centímetros de ancho, con bases cónicas. Las hojas en la parte inferior de la planta tiene más dientes en sus bordes que las hojas en la parte superior de la planta madura. Los tallos y las hojas están cubiertas de forma desigual, con una alfombra de pelos finos, a veces sin pelos. Presentan de 10 a 30 cabezas de flores que en conjunto forman una parte superior plana de toda la planta. Cada cabeza de la flor está rodeado por 2 a 8 brácteas cada una.
Senecio ampullaceus fue descrita por William Jackson Hooker y publicado en Botanical Magazine 63: pl. 3478. 1836.[6]
Ver: Senecio
ampullaceus: epíteto que deriva del latín y significa la forma de su inflorescencia[7]
Datos: Q7450366
Multimedia:
Especies: Senecio ampullaceus
Senecio ampullaceus es una especie de plantas de la familia Asteraceae. Originaria de los Estados Unidos.
Senecio ampullaceus adalah spesies tumbuhan yang tergolong ke dalam famili Asteraceae. Spesies ini juga merupakan bagian dari ordo Asterales. Spesies Senecio ampullaceus sendiri merupakan bagian dari genus Senecio.[1] Nama ilmiah dari spesies ini pertama kali diterbitkan oleh Hook..
Senecio ampullaceus adalah spesies tumbuhan yang tergolong ke dalam famili Asteraceae. Spesies ini juga merupakan bagian dari ordo Asterales. Spesies Senecio ampullaceus sendiri merupakan bagian dari genus Senecio. Nama ilmiah dari spesies ini pertama kali diterbitkan oleh Hook..
Senecio ampullaceus là một loài thực vật có hoa trong họ Cúc. Loài này được Hook. miêu tả khoa học đầu tiên năm 1836.[1]
Senecio ampullaceus là một loài thực vật có hoa trong họ Cúc. Loài này được Hook. miêu tả khoa học đầu tiên năm 1836.
