Galinsoga parviflora Cav. 1794
IUCN
NCBI
EOL Text
"Erect branched herbs, 30-40 cm high; stem smooth. Leaves opposite, 3-5 x 2-3 cm, ovate, acute, glabrous, serrate, 3-ribbed from base. Heads 4 x 3 mm, many, in axillary or terminal peduncled cymes; peduncles dichotomous, slender; bracts biseriate, 3 x 2 mm, ovate, acute, glabrous; receptacle paleate. Outer row of flowers ligulate, limb deeply 3-lobed, white. Inner flowers tubular, bisexual; corolla 1.5 mm long, 5-toothed; anthers obtuse at base. Achenes 2 mm long, obovoid, truncate, black, 3-4-angled, scabrid; pappus of 3-4 fimbriate hyaline scales."
Galinsoga parviflora[1] is an herbaceous plant in the Asteraceae (daisy) family. It has several common names including guasca (Colombia), mielcilla (Costa Rica), galinsoga (NZ), gallant soldier[2] (USA), and potato weed.[3]
It is also known by the taxonomic name Tridax parviflora[4]
Galinsoga parviflora was brought from Peru to Kew Gardens in 1796, and later escaped to the wild in Great Britain and Ireland. In Britain its name Galinsoga is sometimes popularly rendered as "gallant soldiers", and then sometimes altered to "soldiers of the Queen".
In Colombia it is used as a spice herb in the soup Ajiaco. It can also be used as an ingredient in leaf salads.
In much of the world it is considered a weed.[5]
Description[edit]
Galinsoga parviflora grows to a height of 75 cms. It is a branched herb with opposite stalked leaves, toothed at the margins. The flowers are in small heads. The ray-florets are usually 5, white, about 1 mm long and 3-lobed. The central disk florets are yellow and tubular.[6]
Distribution[edit]
There are a few records of G. parviflora and G. ciliate as a weed in Northern Ireland.[7]
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Notes[edit]
- ^ RNZIH - Horticulture Pages - Weeds - Index of names
- ^ PLANTS Profile for Galinsoga parviflora (gallant soldier) | USDA PLANTS
- ^ "Factsheet - Galinsoga parviflora".
- ^ Tridax parviflora (Galinsoga parviflora) in Profile
- ^ Weed database presentation
- ^ Clapham, A.R., Tutin, T.G. and Warburg, E.F. 1968 Excursion Flora of the British Isles. Cambridge University Press. ISBN 0-521-04656-4
- ^ Hackney, P. (Ed.) 1992. Stewart & Corry's Flora of the North-east of Ireland. Third Edition. ISBN 0-85389-446-9
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| Source | http://en.wikipedia.org/w/index.php?title=Galinsoga_parviflora&oldid=638104222 |
Annual herb to 60 cm. Leaves: petiole up to 1.5 cm; lamina up to 6 × 3.5 cm, ovate, hispidulous or glabrescent; margin subentire to crenate. Peduncle hairs usually short, appressed-ascending, intermingled with a few short glandular hairs. Capitula c.5 mm in diameter. Receptacular scales c.2.3 mm, usually 3-fid. Achenes c.2 mm, puberulent, black. Pappus of very narrowly ovate, ciliate-fimbriate scales, without a terminal projection.
Habit: Herb
Comments: At one time, USFWS assigned G. semicalva var percalva a '3B' status. Kartesz (1999) lumps G. semicalva var percalva into G. parviflora. Kartesz (1999) believes this species to be exotic throughout North America, but USDA-ARS (2005) notes that its "probable native range [extends] from s.w. United States to South America ". Flora of North America Editorial Committee (2006) distinguishes Galinsoga parviflora var. semicalva and considers it native in Arizona, New Mexico, and Texas while Galinsoga parviflora var. parviflora is considered to be introduced in North America.
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parviflora: small-flowered
Isotype for Stemmatella sodiroi Hieron.
Catalog Number: US 1059383
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): L. Sodiro
Locality: Ecuador, South America
- Isotype: Hieronymus, G. H. 1901. Bot. Jahrb. Syst. 28: 601.
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"Notes: Western Ghats & Eastern Ghats, Naturalized, Native of Tropical America"
"In open areas, dry deciduous forests and shola forests"
Flowering class: Dicot Habit: Herb Distribution notes: Exotic