Nepenthes graciliflora

{{short description|Species of pitcher plant from the Philippines}}

{{Speciesbox

|image = Nepenthes alata ASR 062007 mt halcon mindoro.jpg

|image_caption = An upper pitcher of Nepenthes graciliflora on Mount Ayam Bukong, a flank of Mount Halcon, Mindoro

|status = LC

|status_system = IUCN3.1

|status_ref = {{cite iucn |author=Clarke, C.M. |date=2018 |title=Nepenthes graciliflora |volume=2018 |page=e.T48972384A143969843 |doi=10.2305/IUCN.UK.2018-1.RLTS.T48972384A143969843.en |access-date=19 November 2021}}

|genus = Nepenthes

|species = graciliflora

|authority = Elmer (1912)Elmer, A.D.E. 1912. [https://www.biodiversitylibrary.org/page/771554 Nepenthaceae.] [pp. 1494–1496] In: [https://www.biodiversitylibrary.org/page/771535 Two score of new plants]. Leaflets of Philippine Botany 4: 1475–1520.

|synonyms =

{{collapsible list|bullets = true

|title=Synonyms

|Nepenthes alata
auct. non Blanco: Danser (1928)Danser, B.H. 1928. [http://www.omnisterra.com/botany/cp/pictures/nepenthe/dansermg/dans11.htm 1. Nepenthes alata Blanco]. [pp. 258–262] In: The Nepenthaceae of the Netherlands Indies. Bulletin du Jardin Botanique de Buitenzorg, Série III, 9(3–4): 249–438.
[=N. abalata/N. alata/N. benstonei/
N. copelandii/N. eustachya/N. graciliflora/
N. mindanaoensis/N. mirabilis/
N. negros/N. philippinensis]Cheek, M. & M. Jebb 2013. Typification and redelimitation of Nepenthes alata with notes on the N. alata group, and N. negros sp. nov. from the Philippines. Nordic Journal of Botany 31(5): 616–622. {{doi|10.1111/j.1756-1051.2012.00099.x}}Clarke, C. & C.C. Lee 2012. [http://www.sbg.org.sg/Bulletin/166_1295.pdf A revision of Nepenthes (Nepenthaceae) from Gunung Tahan, Peninsular Malaysia.] {{webarchive|url=https://web.archive.org/web/20131007001859/http://www.sbg.org.sg/Bulletin/166_1295.pdf |date=2013-10-07 }} Gardens' Bulletin Singapore 64(1): 33–49.Schlauer, J. N.d. [http://www.omnisterra.com/bot/cp_home.cgi?name=Nepenthes+alata Nepenthes alata]. Carnivorous Plant Database.

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Nepenthes graciliflora is a tropical pitcher plant endemic to the Philippines.Cheek, M. & M. Jebb 2013. Nepenthes ramos (Nepenthaceae), a new species from Mindanao, Philippines. Willdenowia 43(1): 107–111. {{doi|10.3372/wi.43.43112}} Long considered a synonym of N. alata, it was restored as a separate species in 2013 by Martin Cheek and Matthew Jebb. It has been recorded from the islands of Bohol, Leyte, Luzon, Mindanao, Mindoro, Panay, Samar, and Sibuyan, and following the redelimitation of N. alata is the most widespread Nepenthes species of the Philippines. It is known from mossy, submontane forest, generally at {{convert|800–1280|m|-3}} altitude, though the type specimen from Sibuyan was collected at only {{convert|300|m|-3|abbr=on}}.

Nepenthes graciliflora belongs to the informal "N. alata group", which also includes N. alata, N. ceciliae, N. copelandii, N. extincta, N. hamiguitanensis, N. kitanglad, N. kurata, N. leyte, N. mindanaoensis, N. negros, N. ramos, N. saranganiensis, and N. ultra.Cheek, M. & M. Jebb 2013. Recircumscription of the Nepenthes alata group (Caryophyllales: Nepenthaceae), in the Philippines, with four new species. European Journal of Taxonomy 69: 1–23. {{doi|10.5852/ejt.2013.69}}Cheek, M. & M. Jebb 2013. Nepenthes ultra (Nepenthaceae), a new species from Luzon, Philippines. Blumea, published online on October 24, 2013. {{doi|10.3767/000651913X675124}} These species are united by a number of morphological characters, including winged petioles, lids with basal ridges on the lower surface (often elaborated into appendages), and upper pitchers that are usually broadest near the base.