Golden needle grass is also known as daylily, yellow cauliflower.

Daylily, also known as yellow cauliflower, golden needle grass, for the lily family daylily perennial herbaceous plants, daylily genus of certain species of roots with neurotoxicity. China is the world's daylily plant species, the most widely distributed countries, about 12 species and some varieties, has been identified as poisonous species of wild yellow crocus, northern sunflower crocus, northern daylily, small yellow crocus. After grazing sheep foraging toxic campanula roots, can cause pupil dilation, blindness, paralysis and bladder paralysis and other symptoms, softening of the brain and spinal cord white matter, optic nerve degeneration, commonly known as the "blind eye disease". The disease mainly occurs in grazing goats, sheep, cattle, pigs, rabbits, horses, chickens, dogs, etc. can also be poisoned.

Morphological features:

Perennial herb, rhizome thick and short, with fleshy fibrous roots, most of the expansion of the long narrow fusiform. Leaves are basal in clusters, striped lanceolate, 30-60cm long, about 2.5cm wide, abaxially covered with white powder. Large orange-yellow flowers in summer, scape longer than leaves, up to more than 1m high; panicle terminal, with 6～12 flowers, pedicel ca. 1cm, with small lanceolate bracts; flowers 7～12cm long, perianth base stubby funnel-shaped, up to 2.5cm long, perianth 6 pieces, spreading, outwardly reflowering, outer whorl of 3 pieces, 1～2cm wide, inner whorl of 3 pieces up to 2.5cm wide, slightly undulate at the edge; stamens 6. Filaments long, attached to perianth throat; ovary superior, style slender.

The main characteristics of this species are: the root is nearly fleshy, with fusiform expansion in the middle and lower part; the leaves are generally wider; the flowers bloom in the morning and wither at night, unscented, orange-red to orange-yellow, and there is generally a ∧-shaped picking spot on the lower part of the inner perianth lobes. These characteristics can be distinguished from other species produced in this country. The flowering and fruiting period is May-July.