Botanical name: Pogostemon quadrifolius Family: Lamiaceae (Mint family)
Synonyms: Mentha quadrifolia, Mentha stellata, Dysophylla velutina
Four-Leaf Shrub-Mint is a large erect herb, 1-2 m tall, stem angled and ridged; whole plant densely grey-velvet-hairy. Flowers are borne in showy long spikes at branch-ends, 10-15 cm long, 0.5-0.8 cm diameter; bracts 0.3-0.4 x 0.1-0.15 cm, ovate-lanceshaped. Flowers are white; tube 0.1-0.15 cm long, 4-lobed. Sepal-tube is about 0.1 cm long, 5-toothed. Stamens are 4, shortly protruding; filaments bearded. Flowers are clustered at axils of bracts. Leaves are usually 4 in a whorl, 6-10 x 0.5-0.8 cm, linear-lanceshaped, pointed at tip, narrowed at base, densely gray-velvet-hairy on both sides. Four-Leaf Shrub-Mint is native to India to Myanmar and China.
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