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Species
Galinsoga quadriradiata Ruiz & Pav.
IUCN
NCBI
EOL Text
A cosmopolitan weed, native of Mexico.
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Source | http://www.efloras.org/florataxon.aspx?flora_id=110&taxon_id=200023970 |
Galinsoga quadriradiata is a species of flowering plant in the daisy family which is known by several common names, including shaggy soldier, hairy galinsoga, and fringed quickweed. It is found throughout most of the temperate world, but apparently its native home is Mexico. In Portuguese-speaking countries where it is widely naturalized - e.g. in Brazil - it is known as botão-de-ouro. As an agricultural weed it can reduce crop yields by up to 50%.[1]
Description[edit]
This is an annual herb which varies in appearance. The main stem reaches anywhere from 10 to 60 centimeters in height and may branch or not. The petioled leaves are oval and serrated and are covered in a coat of soft hairs. The small flower heads are up to a centimeter wide and have rounded center filled with many disc florets usually in a shade of bright yellow. There are five white ray florets widely spaced around the center, each an oval shape with one or two deep notches in the end. The fruit is a small achene with a large pappus.
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Source | http://en.wikipedia.org/w/index.php?title=Galinsoga_quadriradiata&oldid=633544030 |
Plants 8–62 cm. Leaf blades 20–60 × 15–45 mm. Peduncles 5–20 mm. Involucres hemispheric to campanulate, 3–6 mm diam. Phyllaries falling. Paleae: outer falling, broadly elliptic to obovate, 2–3 mm; inner falling, linear to lanceolate, 2–3 mm, entire or 2- or 3-lobed, lobes to 1/3 total lengths, blunt. Ray florets (4–)5(–8); corollas usually white, sometimes pink, laminae 0.9–2.5 × 0.9–2 mm. Disc florets 15–35. Cypselae: rays 1.5–2 mm; discs 1.3–1.8 mm; pappi: rays of 6–15 fimbriate scales 0.5–1 mm; discs 0, or of usually 14–20, rarely 1–5, white, lanceolate to oblanceolate, fimbriate, sometimes aristate, scales 0.2–1.7 mm. 2n = 32 [48, 64].
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Source | http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=200023970 |
Tetraploids of Galinsoga quadriradiata are native to Mexico. Higher polyploids are found in South America and differ from the tetraploids by their coarsely crenate-serrate leaves, cylindro-campanulate involucres, and usually reddish purple limbs of ray corollas that extend at right angles to involucres.
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Source | http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=200023970 |
1400-1700 m
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Source | http://www.efloras.org/florataxon.aspx?flora_id=110&taxon_id=200023970 |
Habit: Herb
Galinsoga bicolorata H. St. John & D. White; G. caracasana (de Candolle) Schultz-Bipontinus; G. ciliata (Rafinesque) S. F. Blake
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Rights holder/Author | eFloras.org Copyright © Missouri Botanical Garden |
Source | http://www.efloras.org/florataxon.aspx?flora_id=1&taxon_id=200023970 |
Isotype for Galinsoga eligulata Cuatrec.
Catalog Number: US
Collection: Smithsonian Institution, National Museum of Natural History, Department of Botany
Preparation: Unmounted material
Collector(s): J. Cuatrecasas
Year Collected: 1946
Locality: Chinchiná, terrenos de la granja del "Centro Nacional de Investigaciones del Café", y cercanías de la localidad., Caldas, Colombia, South America
Elevation (m): 1350 to 1400
- Isotype:
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Rights holder/Author | This image was obtained from the Smithsonian Institution. Unless otherwise noted, this image or its contents may be protected by international copyright laws. |
Source | http://collections.mnh.si.edu/search/botany/?irn=11301639 |
Isotype for Ageratum perplexans M.F. Johnson
Catalog Number: US 76498
Collection: Smithsonian Institution, National Museum of Natural History, Department of Botany
Verification Degree: Card file verified by examination of original publication
Preparation: Pressed specimen
Collector(s): M. Bang
Year Collected: 1890
Locality: Yungas., La Paz, Bolivia, South America
- Isotype: Johnson, M. F. 1971. Ann. Missouri Bot. Gard. 58: 80.
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Rights holder/Author | This image was obtained from the Smithsonian Institution. Unless otherwise noted, this image or its contents may be protected by international copyright laws. |
Source | http://collections.mnh.si.edu/search/botany/?irn=2148394 |
Type fragment for Galinsoga humboldtii Hieron.
Catalog Number: US 1059392
Collection: Smithsonian Institution, National Museum of Natural History, Department of Botany
Verification Degree: Original publication and alleged type specimen examined
Preparation: Pressed specimen
Collector(s): F. W. Humboldt & A. J. A. Bonpland
Locality: Colombia / Ecuador, South America
- Type fragment: Hieronymus, G. H. 1901. Bot. Jahrb. Syst. 28: 618.
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Rights holder/Author | This image was obtained from the Smithsonian Institution. Unless otherwise noted, this image or its contents may be protected by international copyright laws. |
Source | http://collections.mnh.si.edu/search/botany/?irn=2121042 |