Native to Mexico, from whence the first roots were brought by Coxe, in 1827. The flowers are large and lilac purple, the roots tuberous. The tincture is prepared from the dried and finely pulverized root.
It has been much used by the Old School as an active cathartic, generally in connection with other drugs. Its action was found to be violent, and in overdoses dangerous.
The symptoms contained in Allen's Encyclopaedia, vol. 5, p. 181, are from Noack and Trinks' Materia Medica, to which we add a small proving by Jeanes, made with the fourth dilution, in 1844.
Great restlessness with anxiety.
INNER HEAD. 
Pain in head; smarting in skin of forehead.
HEARING AND EARS. 
LOWER FACE. 
TASTE, SPEECH, TONGUE. 
Biting and smarting of tongue.
INNER MOUTH. 
Stinging on tongue and in fauces.
HICCOUGH, BELCHING, NAUSEA AND VOMITING. 
Flatulent and frothy eructation with abatement of pain.
Nausea and vomiting.
Pain in right hypochondrium.
ABDOMEN AND LOINS. 
Severe griping, cutting pain in bowels, agg. at night.
Pain in middle of abdomen and in region of left superior flexure of colon.
Pain in cecum.
Flatulent rumbling in bowels.
Colic; violent pains in small intestines, as if abdomen would be cut to pieces.
Inflammation of intestines.
Stools: violent, excessive; bloody; watery, with weak pulse; sour smelling; with great restlessness and anxiety.
Before and during stool: cutting colic.
Pain in sigmoid flexure of colon.
Soreness of anus.
Diarrhea in infants: child is quiet all day, but screams and tosses about all night.
Infantile diarrhea, general coldness, blueness of face.
URINARY ORGANS. 
Pain and pressure in region of bladder.
MALE SEXUAL ORGANS. 
Thrilling sensation in urethra whilst urinating.
NECK AND BACK. 
Severe pain about superior margin of left scapula.
UPPER LIMBS. 
LOWER LIMBS. 
Smarting on inside edge and at root of left great toenail, with heat, tearing and pulsation.
Pain in large joint of great toe.
Burning of soles of feet.
LIMBS IN GENERAL. 
Aching in arms and legs, most right side.
Fainting fits; weakness.
Excessive uneasiness and tossing about of limbs.
Night: severe cutting, griping pain in bowels agg.; child screams and tosses.
Great disposition to perspiration of head and superior parts of body.
LOCALITY AND DIRECTION. 
Right: pain in hypochondrium; aching in arm and leg.
Left: pain in superior flexure of colon; severe pain about superior margin of scapula; smarting on inside edge and at root of great toenail.
As if abdomen would be cut to pieces.
Pain: in head; in right hypochondrium; in middle of abdomen; in region of left superior flexure of colon; in region of bladder; in thigh; in large joint of great toe.
Violent pains: in head; in small intestines.
Severe pain: about superior margin of left scapula.
Tearing: at root of great toenail.
Severe griping, cutting pain: in bowels.
Aching in arms and legs.
Stinging: on tongue and in fauces.
Biting: of tongue.
Smarting: in skin of forehead; of tongue; on inside edge and at root of left great toenail.
Burning: of soles of feet.
Soreness: of anus.
Pressure: in region of bladder.
Pulsation: in great toe.
Thrilling sensation: in urethra.
Dryness: of lips.
Compare: Camphora (diarrhea with coldness), Coloc. (colic).
| Source: || The Guiding Symptoms of Our Materia Medica Vol. 06, 1888
| Description: || Clinical materia medica of Jalapa
| Remedies: || Jalapa
| Author: || Hering, C.; Raue, C.G.; Knerr, C.B.; Mohr, C.
| Year: || 1888
| Editing: || errors only; interlinks; formatting
| Attribution: || Legatum Homeopathicum