Which plant provides both a spice and a dye?

Which of the following families is not associated with petroplants?

$A$ cultivated plant whose seed epidermis produces abundant cellulosic hairs used in the textile industry and the manufacture of fine-quality paper is:

$Rauwolfia serpentina$ belongs to the family:

Which of the following types of corn has high sugar content?

The flax fibre, the bast fibre or phloem fibres are obtained from