Senna alexandrina
| Alexandrian senna | |
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Not evaluated (IUCN 3.1)
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| Scientific classification | |
| Kingdom: | Plantae |
| (unranked): | Angiosperms |
| (unranked): | Eudicots |
| (unranked): | Rosids |
| Order: | Fabales |
| Family: | Fabaceae |
| Subfamily: | Caesalpinioideae |
| Tribe: | Cassieae |
| Genus: | Senna |
| Species: | S. alexandrina |
| Binomial name | |
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Senna alexandrina Mill. |
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| Synonyms | |
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Many, see text |
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Many, see text
Senna alexandrina (Alexandrian senna, in Arabic عشرج or عشرق and see below) is an ornamental plant in the genus Senna. It is used in herbalism. It grows natively in upper Egypt, especially in the Nubian region, and near Khartoum (Sudan), where it is cultivated commercially. It is also grown elsewhere, notably in India and Somalia.
Alexandrian Senna is a shrubby plant that reaches 0.5–1, rarely two, metres in height with a branched, pale-green erect stem and long spreading branches bearing four or five pairs of leaves. These leaves form complex, feathery, mutual pairs. The leaflets vary from 4 to 6 pairs, fully edged, with a sharp top. The midribs are equally divided at the base of the leaflets. The flowers are in a raceme interior blossoms, big in size, coloured yellow that tends to brown. Its legume fruit are horned, broadly oblong, compressed and flat and contain about six seeds.
When cultured, the plants are cut down semi-annually, dried in the sun, stripped and packed in palm-leaf bags. They are then sent on camels to Essouan and Darao, then down the Nile to Cairo or else to Red Sea ports. For the nomadic Ababda, for example, trade in senna provides a significant source of income.
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Wikipedia