Bk IV:256-273 Clytie is transformed into the heliotrope.
"The god of light no longer visited Clytie, nor found anything to love in her, even though love might have been an excuse for her pain, and her pain for her betrayal. She wasted away, deranged by her experience of love. Impatient of the nymphs, night and day, under the open sky, she sat dishevelled, bareheaded, on the bare earth. Without food or water, fasting, for nine days, she lived only on dew and tears, and did not stir from the ground. She only gazed at the god's aspect as he passed, and turned her face towards him. They say that her limbs clung to the soil, and that her ghastly pallor changed part of her appearance to that of a bloodless plant: but part was reddened, and a flower like a violet hid her face. She turns, always, towards the sun, though her roots hold her fast, and, altered, loves unaltered."
She finished speaking: the wonderful tale had charmed their ears. Part of them denies it could have happened, part says that the true gods can do anything. Though Bacchus is not one of those.