Four-leaved senna, black grain, pig’s senna, tropical sensitive-pea
Synonym(s)
:
Chamaecrista absus (L.) Irwin & Barneby
Family
:
Caesalpiniaceae
General Info
Description
An erect annual herb, 15 to 60 cm tall. Leaves paripinnate; rachis bearing a linear gland between leaflets. Petioles 2 to 2.5 cm long; stipules linear attenuate, 2.5 to 4 mm long, persistent. Flowers yellow or reddish yellow, borne in few flowered racemes; calyx hairy, 4 mm long, petals 6 mm long, obovate-cuneate, reddish-yellow. Fruit pod, compressed, thin, linear oblong 2.5 to 4.5 cm long. Seeds 5 to 8 per pod, dark brown.
Herb Effects
Reduces blood pressure and induces muscles to relax slightly (seed); diuretic and stimulant (seed receptacle).
Chemistry
Active Ingredients
Sitosterol-beta-D-glucoside, iso-chaksine and chaksine (seed); rhein (hydrolysis of pod)
For conjunctivitis and skin diseases (leaf and seed); found efficacious in cases of ringworm, and form one of the ingredients of aphrodisiacs (seeds).
Reference
Chandel et al., Biodiversity in Medicinal and Aromatic Plants in India.
Cheema MA. Priddle OD. Pharmacological investigations of isochaksine. an alkaloid isolated from the seeds of Cassia absus Linn. Arch Int Pharmacodyn Ther1965 Dec;158(2):307-13.