Appearance
It is an annual plant growing in arable land and disturbed ground. It grows to 10–50 cm tall, with a single, erect, hairless stem, branching toward the top. The leaves are oval, broadest near the tip, 1.5–3 cm long, with a finely toothed margin. The flowers are small, yellow-green, with two to five basal bracts similar to the leaves but yellower; flowering lasts from mid spring to late summer.
Uses
It is highly poisonous. Active ingredients are extracted from it for use in pharmaceutical industry. It is also a plant used in the Chinese traditional medicine.References:
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