Nepenthes izumiae
Nepenthes izumiae
118 malingaliro
Taxonomy
| Banja: | Nepenthaceae |
|---|---|
| Mtundu: | Nepenthes |
| Order: | Caryophyllales |
Mwachidule
Nepenthes izumiae is a highland pitcher plant endemic to Sumatra, known only from two peaks in the Barisan Mountains north of Bukittinggi, West Sumatra. It grows mostly as an epiphyte in mossy montane forest at 1,700 to 1,900 m and has very dark, often purplish-black pitchers.
Nepenthes izumiae is a climbing plant growing up to 8 m tall, with a green to reddish stem. Its leaves are linear, lanceolate or spoon-shaped, up to 28 cm long and 8 cm wide, sometimes with a frilled edge, and the tendril often joins the underside of the leaf before its tip.
Lower pitchers are egg-shaped at the base and cylindrical above, up to 30 cm (12 in) tall and 6 cm wide, with fringed wings. The peristome widens to up to 3 cm at the sides and back, and its ribs end in teeth up to 8 mm long. A triangular or hook-shaped crest is often present under the lid. Lower pitchers are typically purplish black, though their hairs can give an orange or brown sheen; the peristome is purple, black or dark brown, sometimes with paler teeth. Upper pitchers are smaller, up to 20 cm tall, narrowly funnel-shaped below and cylindrical above, and usually lighter in colour.
It appears most closely related to the Sumatran endemics N. lingulata and N. singalana. It lacks the long appendage of N. lingulata and differs from N. singalana in its lid crest, broader leaves and mainly epiphytic habit. Natural hybrids with N. dubia and N. jacquelineae are known.
Zambiri za Geographic
Native Region: Barisan Mountains north of Bukittinggi, West Sumatra, Indonesia (endemic)
Zanyengo: Tropical highland (1,700-1,900 m)
Nepenthes izumiae grows in upper montane mossy forest at 1,700 to 1,900 m, where conditions are moist and sunlight is diffused. It is most often epiphytic on moss-covered branches, but also grows on the ground over a layer of moss; the original description calls it strictly epiphytic. At one site the vegetation is dominated by Dicranopteris and Dipteris ferns. It grows alongside N. dubia and N. gymnamphora. To protect it, the exact locality was not published.
Makhalidwe Athupi
Kukula Kwambiri: Climbs to 8 m; lower pitchers up to 30 cm (12 in), upper up to 20 cm
Mlingo wa Kukula: Moderate
Mtundu wa Msampha: Pitfall Trap
The pitchers are pitfall traps. In upper pitchers the glandular, digestive region covers the lower part of the inner surface below the hip. Lower pitchers have a toothed peristome and a crest under the lid, while upper pitchers have a narrower peristome with much smaller teeth.
Kalozera Wosamalira
Zofunikira Zowala
In the wild it grows in diffused sunlight in mossy forest. Bright, diffuse light is excellent, and artificial lighting can be adequate if it is bright enough.
Bright light year round; no seasonal rest tsiku ndi tsiku
Zofunikira za Madzi
Mtundu: Purified water (distilled, reverse osmosis or rain) is safest
Njira: Water from above and let the excess drain. Do not keep the pot standing in a tray of water: plants sitting in trays often have dwarfed root systems.
pafupipafupi: Often enough to keep the mix evenly moist
Chinyezi: Very high: at least 60%, ideally near 90%
Nthaka
A 50:50 mix of long-fiber sphagnum moss and perlite is a good general starting point. After about a year, knock the plant out of its pot and look at the roots; if they are not exploring the mix, try a different one.
pH: Acidic (sphagnum based)
Kutentha
Chilimwe: Days 77-86°F (25-30°C), nights about 18°F cooler
Zima: Same as summer; tropical, grows all year
Kudyetsa
pafupipafupi: Optional; at most once or twice a month into the pitchers
Plants that catch insects need no feeding. Growers who want to fertilize can pour a small amount of orchid or epiphyte fertilizer into the pitchers once or twice a month, starting small and watching the effect. Fertilizing is optional.
Kufalitsa
Njira: Stem cuttings: cut green stems into segments with about two leaves each, trim each leaf to about a third of its size, set the lower half in the mix and keep the cutting at very high humidity. Roots usually form within about a month. Seed needs a male and a female plant flowering at the same time; it is short-lived and should be sown at once.
Zovuta: Moderate
Malangizo Oyamba
Treat it as a highland Nepenthes: humid, bright but diffuse light, and clearly cooler nights.
Kusaka zolakwika
Leaf edges burning and tendrils failing to form pitchers: humidity too low. A small plant with a weak root system: the pot has been standing in water.
Malangizo Kukula
Buy propagated plants General
Its only known populations are small and unprotected, so choose plants raised in cultivation.
Humidity makes the pitchers Troubleshooting
It lives in moist, mossy cloud forest. Keep humidity high, at least 60%.
Cool nights Advanced
It grows wild at 1,700-1,900 m. Let nights fall about 18°F (10°C) below the day.
Zochititsa chidwi
It is named after Izumi Davis, wife of Troy Davis, one of its describers.
Before it was named it was known as 'Nepenthes species B'.
Flowering-size plants were already in cultivation, labelled N. singalana from Mount Talakmau, before it was described.
Stewart McPherson considers it at significant risk from poaching, and its only known sites are outside national parks.
The IUCN Red List assessed it as Least Concern in 2018 (Clarke, assessment T48973443A143970314).
Chikumbutso
Charles Clarke first mentioned the plant in his 2001 monograph Nepenthes of Sumatra and Peninsular Malaysia as 'Nepenthes species B', unsure whether it was an unusual variety of N. singalana. Troy Davis, Charles Clarke and Rusjdi Tamin formally described it in the journal Blumea in 2003. The holotype was collected in the Barisan Mountains north of Bukittinggi on 13 July 2000 and is held at the herbarium of Andalas University in Padang. Stewart McPherson treated it in detail in Pitcher Plants of the Old World (2009).
Malamulo
- Nepenthes izumiae, Wikipedia
- Nepenthes izumiae, Caryophyllales Network: Nepenthaceae (after Clarke, Davis & Tamin 2003, Blumea 48: 179-182)
- Nepenthes: species of Sumatra, The Carnivorous Plant FAQ (Barry Rice)
- Nepenthes: basic cultivation, The Carnivorous Plant FAQ (Barry Rice)
- Nepenthes: advanced cultivation, The Carnivorous Plant FAQ (Barry Rice)
- Thumbnail guidelines on growing a tropical pitcher plant, The Carnivorous Plant FAQ (Barry Rice)
Mafunso ofunsidwa nthawi zambiri
Likupezeka Kuti Mugule
Mitundu Yogwirizana
Khalani Osinthidwa Nepenthes izumiae
Lembetsani kuti mulandire malangizo osamalira, maupangiri akukulira, ndi zosintha zenizeni Nepenthes izumiae ndi zomera zina zodya nyama.