长叶肾蕨(原变种) chang ye shen jue (yuan bian zhong)

Aspidium biserratum Swartz, J. Bot. (Schrader) 1800(2): 32. 1801; Hypopeltis biserrata (Swartz) Bory; Lepidoneuron rufescens (Schrader) Fée; Nephrodium biserratum (Swartz) C. Presl; N. rufescens Schrader; Nephrolepis exaltata (Linnaeus) Schott var. biserrata (Swartz) Baker; N. hirsutula (G. Forster) C. Presl var. biserrata (Swartz) Kuntze; N. rufescens (Schrader) C. Presl ex Wawra.

Middle pinnae 8-19 × 1-2.5 cm, base of pinnae asymmetrical but not auriculate acroscopically; rachis sparsely hairy.

Forests; near sea level to 800 m. Guangdong, Hainan, Taiwan, Yunnan [Cambodia, India, Indonesia, Japan, Laos, Malaysia, Myanmar, Pakistan, Philippines, Singapore, Sri Lanka, Thailand, Vietnam; Africa, SW Asia, Australia, North and South America, Pacific islands].