or annual herb, somewhat branched, about 0.5 to 1.5 meters high.
Stems are green and succulent, the vegetative parts with scattered,
stinging, and spreading hairs. Leaves are ovate, 5-15 cm long,
with tapering pointed tips and broad rounded bases, toothed margins,
with scattered hairs on both surfaces. Inflorescence is narrow,
axillary, slender, up to 20 cm in length, of numerous, short
paniculately arranged cymes. Flowers are small, crowded, green,
intermixed with pedicels of fallen flowers. Perianth of the pistillate
flower is 1 to 1.5 cm long. The achenes are straw-colored, compressed
and about 1.5 mm long.
The plant, particularly
the leaves is covered with minute, stinging hairs, which cause
intense itching. The hairs resemble a hypodermic needle with
a large bulbous base, exuding a poisonous substance when the
tip is broken.
Introduced weed in
used and preparation
Hairs can cause contact dermatitis.
Leaves applied locally
Decoction of root used as a diuretic. vThe effects probably due to the
potassium nitrate content of the leaves and roots.
Decoction of roots used for asthma and coughs.
In India, leaf-paste used
for boils; root extract, as diuretic.
• Neuropharmacologic Effect / CNS
Stimulant: Ethanolic extract of F interrupta showed
CNS stimulating effects in mice, probably through interfering with cortical
functions or increasing the effects of some CNS stimulating neurotransmitters.
Livestock toxicity concerns
Fruit is believed to be poisonous to horses.