Yellow Rattle (Cockscomb, Rattle Basket, Hay Rattle)
Do not Feed
Common Name: Yellow Rattle (Cockscomb, Rattle Basket, Hay Rattle)
Latin Name:Rhinanthus minor
Family Name: Orobanchaceae
Yellow Rattle is a parasitic plant whose roots grow into the roots of grass and weaken it. It is thought to be toxic to livestock and is often avoided by grazing animals, and the seeds (which rattle in their pod when dry, thus giving the plant its name) are said to contain iridoids that have been known to contaminate cereals.
We can find no research regarding its safety in the tortoise diet, so in the absence of any evidence we would recommend that you do not feed this plant to your tortoise.