The aboveground branches are perennial and green, and the main branches are mostly in the lower part, often clustered; Whether the verticillate branches of young branches are obvious or not. The main branch has a ridge, the dorsal surface of which is curved, the lower part of the sheath is grayish green, the upper part is grayish brown, the sheath teeth are triangular, grayish white, dark brown or light brown, and the edge is membranous.
The lateral branches are hard and cylindrical; Sheath teeth lanceolate, leathery but membranous at margin, brown in upper part, persistent; Sporangium spike is short rod-shaped or oval. Sporangial spikes are short rod-shaped or oval, with a length of 0.5-2.5 cm, a middle diameter of 0.4-0.7 cm, spikelets at the top and sessile.
Lycopodium japonicum is distributed in all parts of China, and also in Japanese, Korean Peninsula, Himalayan (Indian) and other places. ), Mongolia, Russia, Africa, Europe, North America. Grass-saving is tolerant to semi-shade, likes adequate light, cold resistance, likes humidity and is close to water; Propagation methods include cutting propagation and ramet propagation.
Growth habit of festival grass.
The main growth period of grass-saving is from March to 165438+ 10, and the dormant period is from February of 65438+to February of the following year, which basically does not grow. Roots germinate in early March, and sporangium ears can be produced in some areas in April. The sporangium spike of Sarcandra Sarcandra was formed in early September in Luzhou, Sichuan, with a length of 16 mm and a diameter of 6 mm. When it matures, it will spread out and germinate, becoming weeds in autumn or next year.
Grass-saving grows not only on the ridges of fields, but also on swamps and cultivated land. Japanese sarcoma mainly relies on underground stems to germinate and reproduce spores. Therefore, it can germinate in rice fields without ploughing or manual digging, the germination depth can reach about 30 cm, and the aboveground part can grow to more than 65,438+000 cm. Underground stems have strong viability, are not easy to rot and have strong regeneration ability.