Home PagePicture ArchivesFlora of QatarFabaceaeSenna occidentalis

Senna occidentalis (L.)Link

Synonyms

Cassia caroliniana, Cassia ciliata, Cassia falcata, Cassia foetida, Cassia laevigata, Cassia macradenia, Cassia obliquifolia, Cassia occidentalis, Cassia planisiliqua, Ditramexa occidentalis, Ditremexa occidentalis

Common names

Coffee senna, coffeeweed, Mogdad coffee, negro-coffee, senna coffee, Stephanie coffee, stinkingweed, styptic weed

Extract from Wikipedia article

Senna occidentalis is a pantropical plant species.[+]

AI-generated Description

Senna occidentalis, also known as coffee senna or western cassia, is a shrub-like plant native to tropical and subtropical regions. In Qatar, it has been naturalized and can be found growing wild, particularly in areas with disturbed soil and full sun. Studies have reported its presence in various parts of the country, including urban and coastal areas. The plant's ability to thrive in Qatar's arid environment is likely due to its tolerance for high temperatures, drought, and saline conditions. Its bright yellow flowers and distinctive seed pods make it a notable sight in Qatari landscapes.

Coffeeweed (Senna occidentalis) taken from Al Jood Street in Onaiza area. Doha, Qatar, April 7, 2015
LinkCoffeeweed (Senna occidentalis) taken from Al Jood Street in Onaiza area. Doha, Qatar, April 7, 2015
Flower of coffeeweed (Senna occidentalis) on Al Jood Street in Onaiza area. Doha, Qatar, December 23, 2015
LinkFlower of coffeeweed (Senna occidentalis) on Al Jood Street in Onaiza area. Doha, Qatar, December 23, 2015
Location on mapsAl Intisar St, Doha, Qatar
Coffeeweed (Senna occidentalis) on Al Intisar Street in Onaiza area. Doha, Qatar, January 18, 2016
LinkCoffeeweed (Senna occidentalis) on Al Intisar Street in Onaiza area. Doha, Qatar, January 18, 2016
Location on mapsAl Intisar St, Doha, Qatar
Coffeeweed (Senna occidentalis) with flowers and fruits on Al Intisar Street in Onaiza area. Doha, Qatar, January 18, 2016
LinkCoffeeweed (Senna occidentalis) with flowers and fruits on Al Intisar Street in Onaiza area. Doha, Qatar, January 18, 2016
Location on mapsAl Intisar St, Doha, Qatar
Opened seed pod of coffeeweed (Senna occidentalis) taken from Al Intisar Street in Onaiza area. Doha, Qatar, February 3, 2016
LinkOpened seed pod of coffeeweed (Senna occidentalis) taken from Al Intisar Street in Onaiza area. Doha, Qatar, February 3, 2016
Brown seeds of coffeeweed (Senna occidentalis) taken from Al Intisar Street in Onaiza area. Doha, Qatar, February 3, 2016
LinkBrown seeds of coffeeweed (Senna occidentalis) taken from Al Intisar Street in Onaiza area. Doha, Qatar, February 3, 2016

AI-generated summary of observations

Observations of Senna occidentalis in Qatar reveal its presence in the Onaiza area of Doha, specifically on Al Jood Street and Al Intisar Street. The plant was found to be thriving, with flowers observed on December 23, 2015, and fruits present on January 18, 2016. The seed pods were seen to open, releasing brown seeds, as noted on February 3, 2016. The plant's ability to produce flowers and seeds in the Qatari environment suggests its adaptability to local conditions. Multiple sightings over several months indicate that Senna occidentalis is a persistent species in the area, capable of surviving and reproducing in Doha's climate. Its growth and development were documented through various stages, providing insight into its life cycle in Qatar.

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Acknowledgements

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