1859年,約瑟夫·道爾頓·胡克在其對豬籠草屬的分類處理中,再次對長毛豬籠草進行了描述和繪圖,其分佈於《倫敦林奈學會會刊》(The Transactions of the Linnean Society)上。[注 1][8]其插圖和描述還被斯賓塞·聖約翰轉載至他1862年出版的專著《遠東森林生活》(Life in the Forests of the Far East)中。[9]
B·H·丹瑟列出了四份被鑑定為長毛豬籠草的標本。其中包括1892年喬治·達比·哈維蘭在京那巴魯山採集的兩份標本。編號為「Haviland 1656/1232」的標本採集於海拔2400米處。其含雄性花序材料,存放於沙勞越博物館植物標本館中。編號為「Haviland 1813/1353」的標本採集於馬勞伊·帕勞伊高原海拔1650米處;其有可能為愛德華豬籠草。其也存放於沙勞越博物館植物標本館中。其不含花序。1892年3月至4月間,喬治·達比·哈維蘭與兄弟H·A·哈維蘭(H. A. Haviland)一同對京那巴魯山地區進行了考察。這些標本極可能是在此期間採集的。[11][12]
Folia mediocria petiolata, lamina obovato-oblonga v. lanceolata, nervis longitudinalibus utrinque 2-3, vagina caulem fere totum amplectente ; ascidia rosularum ignota ; ascidia inferiora magna, breviter ovata, costis 2 ad os alatis fimbriatis ; peristomio operculum versus in collum elongato 6-12 mm lato, costis altis 3-12 mm distantibus, dentibus 1-3 x longioribus quam latis ; operculo rotundato-cordato v. paulum reniformi, facie inferiore plano ; ascidia superiora magna, parte inferiore ventricosa os versus cylindrica, costis 2 prominentibus ; peristomio operculum versus in collum elevato, 12-22 mm lato, costis altis 3-12 mm distantibus, dentibus 1-3 x longioribus quam latis ; operculo rotundato-ovato v. paulum reniformi, facie inferiore plano ; inflorescentia racemus pedicellis inferioribus 12 mm longis omnibus 1-floris ; indumentum villosum.
This most remarkable plant [N. villosa] resembles that of edwardsiana in so many respects, especially in the size, form and disposition of the distant lamellae of the mouth, that I am inclined to suspect that it may be produced by young plants of that species, before it arrives at a stage when the pitchers have elongated necks.
Kaul, R.B. 1982. Floral and fruit morphology of Nepenthes lowii and N. villosa, montane carnivores of Borneo. American Journal of Botany69(5): 793–803. doi:10.2307/2442970
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Kurata, S. 2008. Nepenthes peltata (Nepenthaceae), a New Species of Pitcher Plant from the Philippines. Journal of Insectivorous Plant Society59(1): 12–17. 引用錯誤:帶有name屬性「Kurata」的<ref>標籤用不同內容定義了多次
Bauer, U., C.J. Clemente, T. Renner & W. Federle 2012. Form follows function: morphological diversification and alternative trapping strategies in carnivorous Nepenthes pitcher plants. Journal of Evolutionary Biology25(1): 90–102. doi:10.1111/j.1420-9101.2011.02406.x
Beaman, J.H. & C. Anderson 2004. The Plants of Mount Kinabalu: 5. Dicotyledon Families Magnoliaceae to Winteraceae. Natural History Publications (Borneo), Kota Kinabalu.
Clarke, C. & J.A. Moran 2011. Incorporating ecological context: a revised protocol for the preservation of Nepenthes pitcher plant specimens (Nepenthaceae). Blumea56(3): 225–228. doi:10.3767/000651911X605781
Meimberg, H., A. Wistuba, P. Dittrich & G. Heubl 2001. Molecular phylogeny of Nepenthaceae based on cladistic analysis of plastid trnK intron sequence data. Plant Biology3(2): 164–175. doi:10.1055/s-2001-12897
Meimberg, H. & G. Heubl 2006. Introduction of a nuclear marker for phylogenetic analysis of Nepenthaceae. Plant Biology8(6): 831–840. doi:10.1055/s-2006-924676
Meimberg, H., S. Thalhammer, A. Brachmann & G. Heubl 2006. Comparative analysis of a translocated copy of the trnK intron in carnivorous family Nepenthaceae. Molecular Phylogenetics and Evolution39(2): 478–490. doi:10.1016/j.ympev.2005.11.023