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of wavy walls with characteristic inner projections and showing
few stomata especially at the base, and few narrow, long
unicellular, whip-like, non-glandular hairs. The mesophyll
shows few cluster crystals of calcium oxalate especially near the
base, and traversed by small vascular bundles with slender spiral
vessels. Pollen grains are spherical.

Constituent:
Red rose petals contain a trace of volatile oil, tannin and

gallic acid
The colour is due to the glucoside cyanin.
Uses:

The petals are chiefly used medicinally in the form of acid
infusion, as an agreeable astringent vehicle or as coloring agent.

Lavender Flower

Lavender flower is the dried flowers of Lavandula
officinalis family Labiatae. It yields not less than 0.5% v/w or
volatile oil.
Lavender flower is cultivated in England.

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