Poppy (Eschscholzia californica Cham.) is a perennial herb of Poppyaceae Poppyceae. Plant height up to 60 cm; stems with longitudinal ribs, dichotomous branches; basal leaves gray-green, three times pinnately lobed, small lobes strip-shaped, cauline leaves are the same as basal leaves; flowers solitary at the top of stems , receptacle cup-shaped, wavy reflexed edges, calyx ovoid, petals triangular fan-shaped, base with orange-yellow spots, filaments filamentous, anthers linear, style short, stigma subulate linear, unequal length; capsule narrow and long conical , the seeds are spherical, with reticulation; the flowering period is April-August, and the fruiting period is June-September.
Hualing grass is native to California, USA, and is widely cultivated throughout China. It likes a cool and dry climate, not heat-resistant, strong cold resistance, likes sunshine, is a fleshy tap root system, requires good drainage, and must have deep and loose soil. The method of propagation is generally by seed propagation