mucilaginous

The first is contained in great abundance in flax and cotton-seed, the sun-flower, and many other of the mucilaginous seeds.
Domestic Animals|Richard L. Allen
Taste: Slightly acid and mucilaginous when raw; after cooking somewhat suggesting white meat of chicken.
Our Edible Toadstools and Mushrooms and How to Distinguish Them|William Hamilton Gibson
He mentions the mucilaginous testa possessed by many seeds, but which only becomes noticeable when they have been moistened.
Makers of British Botany; a collection of biographies by living botanists|Various
It also exudes from the articulations of its abdomen a yellow mucilaginous liquid, of a pungent and disagreeable odour.
The Insect World|Louis Figuier

All plants communicate to water some mucilaginous material which is carried over along with it.
Discovery of Oxygen, Part 2|Carl Wilhelm Scheele

Medical definitions for mucilaginous

mucilaginous

[ myōō′sə-lăj′ə-nəs ]

adj.

Resembling mucilage; moist and sticky.