(a textual research on the names and facts of plants)
[source] it is the whole plant of Cyperaceae.
[plant morphology] Primula bifida
Herbs annual, variable, glabrous or slightly pilose. The stem is thin, 25-50 cm high, 3-5 prismatic under the inflorescence. Leaves linear to narrowly linear, 10-30 cm long, 1-3 mm wide; sheath leathery, upper end nearly truncate. Umbels are solitary or compound, 3-7 cm long; bracts 3-4, leaflike; 1-2 of them are usually longer than inflorescence; spikelets ovate oblong, 5-10 mm long; scales are numerous, spirally imbricate, brown with pale or green midrib, bald; stamens 1-2; stigma flat, upper part ciliate, stigma 2. Nutlets oblong ovate, 1-1.2 mm long, with 7-9 longitudinal lines. The heading time is autumn.
In paddy fields or grasslands. It is distributed in most areas of China.
[chemical constituents] dihydrocyperquinone and tetrahydrocyperquinone were isolated from the whole plant.
[function indications] textual research on the names and facts of plants: "decoction can promote urination. "
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