Nepeta cataria is a perennial plant of the family Labiatae, genus Nepeta, with a strong, basally woody, much-branched stem, about 40-150 centimeters high, nearly 4-angled at the base, obtusely 4-angled at the upper part, shallowly sulcate, and covered with white pubescence. Its leaves yellow-green, stem square purplish, cross-section yellow-white, spike slightly black purple yellow-green. The odor of thorns is clear and fragrant, with flat taste, warm nature and non-toxicity, it has the effect of suppressing phlegm, expelling wind and cooling blood, and can be used to treat colds, headaches, chills, fever and sweating, vomiting and other illnesses.

The above information is for reference only, the specific identification of grass species also need to be combined with more features and professional knowledge to judge.