(Malayalam: ഞെരിഞ്ഞിൽ) (Tamil: நெருஞ்சி) is an annual plant in the caltrop family (Zygophyllaceae) widely distributed around the world, that is adapted to grow in dry climate locations in which few other plants can survive.
It is an invasive species in North America. Like many weedy species, this plant has many common names, including goat’s-head, bindii, bullhead, burra gokharu, bhakhdi, caltrop, small caltrops, cat’s-head, devil’s eyelashes, devil’s-thorn, devil’s-weed, puncture vine, puncturevine, and tackweed.
Tribulus terrestris is known in Tamil as Nerunjil, yanai vanangi, thirikandam, siru nerunjil. This whole plant is used in the form of decoction to treat urinary tract infections, urolithiasis, dysmenorrhea, edema.
Gokshura is believed to contribute to overall physical, as well as sexual, strength by building all the tissues, especially shukra dhatu (reproductive tissue) but it is not considered as a particular vajikarana (sexual functions) herb. It is believed to be useful in kidney, bladder, urinary tract and uro-genital related conditions, where it is said to act as a diuretic.
A tea made out of them is given to treat fevers of all kinds. Tribulus terrestris, which improves human sperm motility and viability, may be due to its antioxidant properties. On the basis of the results, the researchers concluded that Tribulus terrestris can be used as a safe therapeutic alternative to current modalities for the management of motility dysfunction in males.
One study found that administration of Tribulus terrestris extract can produce statistically significant increases in levels of testosterone, dihydrotestosterone, and dehydroepiandrosterone, and produces effects suggestive of aphrodisiac activity.
“Tribulus terrestris may safely and effectively improve desire in women with hypoactive sexual desire disorder.