Squirting cucumber | |
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A fruit of the squirting cucumber | |
Scientific classification | |
Kingdom: | Plantae |
(unranked): | Angiosperms |
(unranked): | Eudicots |
(unranked): | Rosids |
Order: | Cucurbitales |
Family: | Cucurbitaceae |
Subfamily: | Cucurbitoideae |
Tribe: | Bryonieae |
Genus: |
Ecballium A.Rich. |
Species: | E. elaterium |
Binomial name | |
Ecballium elaterium (L.) A.Rich. |
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Synonyms | |
Elaterium Mill. |
Elaterium Mill.
Ecballium is a genus of flowering plants in the family Cucurbitaceae containing a single species, Ecballium elaterium, also called the squirting cucumber or exploding cucumber (but not to be confused with Cyclanthera explodens). It gets its unusual name from the fact that, when ripe, it squirts a stream of mucilaginous liquid containing its seeds, which can be seen with the naked eye. It is thus considered to have rapid plant movement.
It is native to Europe, northern Africa, and temperate areas of Asia. It is grown as an ornamental plant elsewhere, and in some places it has naturalized.
It is suspected to provide food for the caterpillars of the tortrix moth Phtheochroa rugosana.
This plant, and especially its fruit, is poisonous, containing cucurbitacins. In the ancient world it was considered to be an abortifacient.
Elaterium is the plant extract used as a purgative. It is extracted from the juice of the fruit of Ecballium elaterium.
To prepare the extract, the fruit is sliced lengthwise and slightly pressed, the greenish and slightly turbid juice obtained is strained and set aside, and the deposit of elaterium formed after a few hours is collected on a linen filter, rapidly drained, and dried on porous tiles at a gentle heat. Elaterium has been produced in light, thin, friable, flat or slightly incurved opaque cakes, of a greyish-green color, bitter taste and tea-like smell. The extract is soluble in ethanol, but insoluble in water and diethyl ether. The official dose used to be 1 1⁄2 grain, and the British pharmacopeia at the beginning of the 20th century directs that the drug is to contain from 20 to 25% of the active principle elaterinum or elaterin. A resin in the natural product aids its action.