窄葉豬籠草

窄葉豬籠草（學名：Nepenthes stenophylla）是婆羅洲特有的熱帶食蟲植物。其種加詞“Stenophylla”意為“窄葉的”。其漏斗狀的捕蟲籠可高達25釐米。其在《世界自然保護聯盟瀕危物種紅色名錄》中被列為無危物種。窄葉豬籠草被歸入“大豬籠草系”中，其中還包括博世豬籠草（N. boschiana）、陳氏豬籠草（N. chaniana）、附生豬籠草（N. epiphytica）、艾瑪豬籠草（N. eymae）、法薩豬籠草、暗色豬籠草（N. fusca）、克洛斯豬籠草（N. klossii）、大豬籠草（N. maxima）、寬唇豬籠草（N. platychila）和佛氏豬籠草（N. vogelii）。
其種加詞“stenophylla”來源於希臘文“steno”和“phylla”，意為“狹窄的葉片”，指其葉片的形狀。

**假豬籠草**
自假豬籠草（N. fallax）首次被描述後，其與窄葉豬籠草之間就存在許多爭議。除籠蓋外，假豬籠草的大部分與窄葉豬籠草類似；假豬籠草的模式標本具圓形的籠蓋，而窄葉豬籠草較窄。窄葉豬籠草的原始描述基於一棵由種子發育而來的植株，其種植於英國的溫室中。所以狹長的籠蓋可能是因人工種植造成的異常特徵。
在B·H·丹瑟的開創性著作《荷屬東印度群島的豬籠草科植物》中認為假豬籠草其實是窄葉豬籠草的一個同物異名。這一觀點也可得了之後大多數學者的支持。簡·斯洛爾（Jan Schlauer）考慮到區分這兩個類群僅基於籠蓋形態的不同。他懷疑最初命名為窄葉豬籠草的類群可能是之後被命名的法薩豬籠草（N. faizaliana）。
假豬籠草在《世界自然保護聯盟瀕危物種紅色名錄》中的保護狀況為易危。

**自然雜交種**
N. fusca × N. stenophylla
*N. lowii × N. stenophylla
*N. rajah × N. stenophylla
*N. reinwardtiana × N. stenophylla
*N. stenophylla × N. tentaculata
*N. stenophylla × N. veitchii

**註釋**

**參考文獻**
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**擴展閱讀**
  原生地中窄葉豬籠草的照片- 食蟲植物照片搜尋引擎中 窄葉豬籠草的照片 date=20210119142103