Impatiens noli-tangere, an annual height of 40-80cm, inhabit
mountain streamsides or damp forests in hilly districts. Leaves with
petioles are oblong, the tips dully pointed, 4-8cm in length, the
margins having coarse serrations. Inflorescences droop from the leaf
axils; they hang down 3-4cm-long light yellow flowers with slender
peduncles. The stout part is one of the sepals, its basal part
growing into a spur. There are three petals, but the lower two
connate to become a lip.