Common name: Stiff Bottle Brush
Botanical name: Callistemon rigidus
Family: Myrtaceae (Myrtle
family)
Introduction Stiff Bottle Brush is a
stiff erect shrub, mostly 2-3 m tall. Leaves linear to
narrow-inverted-lanceshaped, mostly 5-7 cm long, 3-4 mm wide, margins
thickened. Leaf blade is thick, rigid, rarely channelled, lower surface dotted
with glands, lateral veins generally obscure. Flower spikes are 7-10 cm long,
4-6 cm in diameter. Rachis and hypanthia pubescent at first. Filaments are
2-2.5 cm long, red, anthers dark. Capsules are about 7 mm in diameter, round
with an opening, closely-packed on the branch. Capsules is good identifying
feature for this species. Like all
Bottle-Brushes, Stiff Bottle Brush is native to Australia.
Chemical constituents: Callistemon citrinus has a total of
24 active constituents, of which the most common one is 1,8-cineole,
with a 61,2% and alpha-pinene (α-pinene)in a concentration of 13,4%. Other
active constituents found on this herb includes: α-pinene, β-pinene, α-terpinene,
linalool, trans-pinocarveol, terpinen-4-ol,geraniol and α-terpineol.
Medicinal uses:
·
Antibacterial properties
of the essential oils.
·
Powdered flowers for
cold malaria and cough and dry flowers in a migraine.
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