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Senna, the sennas, is a large genus of flowering plants in the legume family (Fabaceae, subfamily Caesalpinioideae, [2] tribe Cassieae ser. Aphyllae [3]). This diverse genus is native throughout the tropics, with a small number of species in temperate regions. The number of species is estimated to be from about 260 [4] to 350. [5]
Senna glycoside, also known as sennoside or senna, is a medication used to treat constipation and empty the large intestine before surgery. [1] [5] The medication is taken by mouth or via the rectum. [1] [6] It typically begins working in around 30 minutes when given by rectum and within twelve hours when given by mouth. [3]
Senna obtusifolia, known by common names including Chinese senna, American sicklepod and sicklepod, is a plant in the genus Senna, sometimes separated in the monotypic genus Diallobus. It grows wild in North , Central , and South America , Asia , Africa , and Oceania , and is considered a particularly problematic weed in many places.
Early classification chart are often visualized in a tree structure. Modern charts can also be presented in table or as an infographic. The term "classification chart" came into use in the 20th century. In his 1939 Graphic presentation. (first edition 1919) Willard Cope Brinton was one of the first to devoted a whole chapter on classification ...
Senna barronfieldii is an erect shrub that typically grows to a height of up to 2.5 m (8 ft 2 in). Its leaves are pinnate, 80–150 mm (3.1–5.9 in) long on a petiole 6–14 mm (0.24–0.55 in) long, with eight to thirteen pairs of lance-shaped or elliptic leaflets 10–30 mm (0.39–1.18 in) long and 5–10 mm (0.20–0.39 in) wide.
Senna marilandica has green, round, unbranched stems rising from a shallow, fibrous root system, reaching a height of about 2 m (6 ft). The compound leaves are alternate and pinnate with four to eight pairs of opposite leaflets on each leaf. Leaflets are up to 6 cm (2.5 in) long and 2 cm (0.75 in) wide and are ovate to elliptic in shape. [5]
Senna bicapsularis is a species of the legume genus Senna, native to northern South America, from Panama south to Venezuela and Colombia, and also the West Indies. [1] Common names include rambling senna (formerly "cassia"), winter cassia , Christmas bush , money bush , and yellow candlewood . [ 2 ]
The pin-point method (or point-intercept method) is used for non-destructive measurements of plant cover and plant biomass. [1] [2] In a pin-point analysis, a frame (or a transect) with a fixed grid pattern is placed above the vegetation. A pin is inserted vertically through one of the grid points into the vegetation and will typically touch a ...