Senna (plant)

cultivation.^[6]

pod containing several seeds.^{[7][8][9][10]}

Xylocopa.^[4] They rely on "buzz pollination" and some within that on "ricochet pollination", which is a secondary pollen presentation where the pollen is not deposited on the pollinator's body by direct contact with the anthers.^[18] The flowers have two sets of stamen: feeding stamens, which are longer, and pollinating stamens, which are smaller in size.^[19] Due to buzz pollination, the pollens from the pollinating stamens get thrown from the anthers and ricochets against the petals multiple times before it settles on the dorsal side of the pollinating bee. The roughness on the petal walls causes the pollen to slow down its speed. The ricocheting effect alone cannot ensure effective pollen dissemination. It is aided by static charges wherein the flying bees become positively charged owing to the friction in the air and the pollen becomes negatively charged because of which they naturally get attracted to the bees body. The pollinator bee ends up carrying the pollen and also gets to feed on the pollen which is on the feeding stamens.^[18]

adapted to many climate

Southeast Asian cuisines, such as Thai, Shan/Burmese and Lao cuisines. They are known as khi-lek in Thai, and are used in curries.^[20]

peristaltic contractions and decrease water absorption from inside the colon, effects that would provide relief from constipation.^[21] The laxative syrup of figs gets most of its effect from the presence of senna.^[22]

Cochrane reviews for treatment of constipation in children and the elderly. Some studies showed limited evidence for efficacy,^[23][24][25] whereas others indicated the study designs were too weak to be certain of senna having utility as a laxative.^[21][26][27]

Eocene epoch has been described from the Rancho clay pit in Henry County, Tennessee (United States).^[28]