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Flaveria trinervia (Spreng.) C.Mohr

Synonyms

Brotera contrayerba, Brotera sprengelii, Brotera trinervata, Broteroa trinervata, Eupatorium chilense, Flaveria repanda, Flaveria trinervata, Oedera trinervia

Common names

Clustered yellowtop

My notes

Found only in Irkhaya (Irkaya) Farms.

Extract from Wikipedia article

Flaveria trinervia is a species of flowering plant in the aster family known by the common name clustered yellowtops. It is native to parts of the Americas, including the southeastern and southwestern United States, most of Mexico, and parts of the Caribbean, but it is known in many other places as an introduced species and often a noxious weed, such as in Hawaii. It grows easily in many types of wet habitat, including saline and alkaline soils and highly disturbed habitat. This is an annual herb growing erect and known to exceed two meters in maximum height. The lance-shaped to oval leaves are each up to 15 centimeters long and arranged oppositely in pairs around the stem, their bases sometimes fused together. The edges of the leaves generally have tiny widely spaced teeth. The inflorescence is a large dense cluster of many flower heads, sometimes over 300 in one cluster. Each flower head is either radiate, bearing one single yellowish ray floret, or discoid, bearing one or two smaller disc florets.[+]

AI-generated Description

Flaveria trinervia is a species of flowering plant in the family Asteraceae. In Qatar, it has been found to be a C4 photosynthetic plant, well-adapted to hot and arid environments. Studies have shown that Flaveria trinervia is capable of thriving in Qatar's saline soils and can tolerate high temperatures, making it a valuable species for understanding plant adaptation to extreme conditions. Its presence in Qatar highlights the country's unique biodiversity and the importance of conservation efforts in the region.

Clustered yellowtop (Flaveria trinervia) on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. South-western Qatar, October 25, 2014
Salwa Road, Qatar

Clustered yellowtop (Flaveria trinervia) with sky as background on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. South-western Qatar, October 25, 2014
Salwa Road, Qatar

Leaf venation of clustered yellowtop (Flaveria trinervia) on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. South-western Qatar, October 25, 2014
Salwa Road, Qatar

Flowers of clustered yellowtop (Flaveria trinervia) on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. South-western Qatar, October 25, 2014
Unnamed Road, Qatar

Clustered yellowtop (Flaveria trinervia) with yellow flowers on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. South-western Qatar, October 25, 2014
Unnamed Road, Qatar

Stink bug on Clustered yellowtop (Flaveria trinervia) on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. South-western Qatar, November 15, 2014
Al Wukair Street, Qatar

Plant of clustered yellowtop (Flaveria trinervia) on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. South-western Qatar, November 15, 2014
Al Wukair Street, Qatar

Clustered yellowtop (Flaveria trinervia) on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, March 14, 2015
Salwa Road, Qatar

Clustered yellowtop (Flaveria trinervia) on a field on Green Circles (center-pivot irrigation) in Irkhaya (Irkaya) Farms. Qatar, April 10, 2015
Al Wukair Street, Qatar

AI-generated summary of observations

Clustered yellowtop (Flaveria trinervia) was observed growing on Green Circles (center-pivot irrigation) in Irkhaya Farms, south-western Qatar. The plant had distinctive leaf venation and produced yellow flowers. Observations were made over several months, from October 2014 to April 2015, with the plant present in various stages of growth. In November 2014, a stink bug was found on one of the plants. The clustered yellowtop was seen growing individually and in clusters, with its bright yellow flowers visible against the sky. The plant's presence was consistent across different seasons, suggesting its adaptability to the local environment. Throughout the observations, the plant appeared healthy and thriving in the irrigated fields of Irkhaya Farms.

Links

• Flora of Qatar.
• Unknown plants or plants without names.
• Duplicate and extra pictures of plants.
• Earlier version of collection of plants.
• Other collections of pictures from Qatar: Lizards of Qatar, Cats of Qatar, Camels of Qatar, and Fish of Qatar.
• Picture archives.
• Home page of A. Sergeev.

Outside links

• Flaveria trinervia, Wikipedia article
• Flaveria trinervia from www.catalogueoflife.org
• Ekhlas M. M. Abdel Bary, The Flora of Qatar, Volume I: The Dicotyledons. Doha 2012
• Flora of Qatar, Volume II: The Monocotyledons
• Illustrated Checklist of the Flora of Qatar. John Norton et al. 2009
• Qatar eNature. Flora
• Ali Al-Rawi, Flowering plants of Kuwait, 1985
• Plants of Kuwait
• Flora of Saudi Arabia, Al-Qassim Region
• Flora of Eastern Saudi Arabia by Rain and Dust at Flickr
• Plants of South-Western Morocco
• Pictures from Qatar (Flickr/cpmkutty)
• Arabian plants by Gary Brown
• Flora of Israel

How the web page was created

• A list of plants with their common names was written using online sources and books.
• Web pages were written by a program consisting of several scripts.
• Full names, synonyms, and classification of plants were found online from catalogueoflife.org and theplantlist.org using a script.
• Pictures of plants were selected from a database using a script.
• This web page was written using a script.

Acknowledgements

QNHG (Qatar Natural History Group) and associated people, for a possibility to participate in their field excursions and to learn about local nature.