摘要

‘Yuhu 4’is derived from the cross of Dendrobium officinale from Yunnan Province and Yandang Mountain in Zhejiang Province. The clustered stems are 30–50 cm high,0.8–1.0 cm thick,with many nodes,and the internode is 2.0–3.5 cm long. The leaf alternate and oblong-lanceolate. The raceme is 3 to 6 cm long with 3–5 flowers(yellow green). Flowering occurred from April to June. It is suitable for industrial planting in Henan Province because of its fast growth,high yield and active ingredients.

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