1859年，约瑟夫·道尔顿·胡克正式描述[注 2]了劳氏猪笼草。[1]约瑟夫·道尔顿·胡克的原始描述和插图刊登于斯宾塞·圣约翰于1862年出版的《远东森林生活》（Life in the Forests of the Far East）中。[7]关于基纳巴卢山的劳氏猪笼草斯宾塞·圣约翰这样写道：[注 3][7]
约翰·缪尔黑德·麦克法兰在其1908年的专著《猪笼草科》中发表了修改后的描述和插图。[18]此外，约翰·缪尔黑德·麦克法兰还在1914年的《林奈学会杂志》（Journal of the Linnean Society）[19]和1919年的《园艺标准百科全书》（The Standard Cyclopedia of Horticulture）[20]上发表了关于劳氏猪笼草的文章。
劳氏猪笼草的上位笼很独特，其笼盖外翻，下表面具许多长须，有如一个生化马桶一般。长须间上积累了大量白色物质，而这些白色物质是什么一直被学者们争论不休。20世纪60年代，J·哈里森（J. Harrison）认为这些白色珠子是蜗牛卵。[52]1961年至1964年，E·J·H· 科纳（ E. J. H. Corner）领导了皇家学会对基纳巴卢山的考察，他写道：[注 7][53]
暗色猪笼草与劳氏猪笼草的自然杂交种（N. fusca × N. lowii）由罗伯特·坎特利和查尔斯·克拉克在沙捞越的巴杜拉威山发现。[4]最近也在特鲁斯马迪山也发现了该自然杂交种的单一植株。[69]查尔斯·克拉克后来发现，在沙巴的克罗克山脉，特别是在阿兰伯山顶峰附近也存在该自然杂交种。[4]该自然杂交种的捕虫笼中部略微收缩，颜色为绿色至暗紫色。[4]
安西娅·飞利浦和安东尼·兰姆在其专著《婆罗洲的猪笼草》中提及了劳氏猪笼草与窄叶猪笼草的自然杂交种（N. lowii × N. stenophylla）。因1985年，约翰·布里格斯在沙巴门塔波山采集到了劳氏猪笼草与窄叶猪笼草的自然杂交种的标本，所以其也被称之为门塔波山猪笼草[5]。在婆罗洲北部也存在几个原生地，包括了文莱的巴贡山。[5]
德国Marabini博士最早通过让葫芦猪笼草和劳氏猪笼草杂交获得了一批子代猪笼草，他将这批子代命名为Nepenthes x briggsiana，他声称该杂交种是以葫芦猪笼草为母本，以劳氏猪笼草为父本杂交而来的杂交种，在获得种子以后，他将一部分种子寄给了多位猪笼草种植者——这其中包括了美国加利福尼亚州的猪笼草种植者比尔·鲍姆加特尔(Bill Baumgartl)，比尔将植株进行组织培养克隆，并以加州当地著名的食虫植物苗圃California Carnivores的老板彼得·达马托(Peter D'Amato)的名字来为这种猪笼草命名，这件事情引起了彼得·达马托的注意，他自豪地将这种猪笼草放在自己的苗圃展示区，并在其代表作《野性花园》里提到该杂交种[注 9][76]：
“
这个可爱而有活力的杂交品种N.ventricosa x lowii是由德国的约翰内斯·马拉比尼杂交获得的的，它们的形态可能相当多变。其捕虫笼具有很宽开口，笼唇边缘有一圈细齿，捕虫笼到腰部逐渐变细，底部呈球状。盖子较大且竖立。其中一种名为N.x'Peter D'Amato'的个体由比尔·鲍姆加特尔命名，其捕虫笼较小且具有色彩浓郁的金色。其他个体的捕虫笼可能相对较大，但是颜色较浅。
A little way further we came upon a most extraordinary Nepenthes, of, I believe, a hitherto unknown form, the mouth being oval and large, the neck exceedingly contracted so as to appear funnel-shaped, and at right angles to the body of the pitcher, which was large, swollen out laterally, flattened above and sustained in an horizontal position by the strong prolongation of the midrib of the plant as in other species. It is a very strong growing kind and absolutely covered with its interesting pitchers, each of which contains little less than a pint of water and all of them were full to the brim, so admirably were they sustained by the supporting petiole. The plants were generally upwards of 40 ft long, but I could find no young ones nor any flowers, not even traces of either.
Ascidia magna, curva, basi inflata, medio constricta, dein ampliata, infundibuliformia; ore maximo, latissimo, annulo O.
Nepenthes Lowii, H. f.—Caule robusto tereti, foliis crasse coriaceis, longe crasse petiolatis lineari-oblongis, ascidiis magnis curvis basi ventricosis medio valde constrictis, ore maximo ampliato, annulo O, operculo oblongo intus dense longe setoso. (Tab. LXXI.) Hab.—Kina Balu; alt. 6,000–8,000 feet (Low). A noble species, with very remarkable pitchers, quite unlike those of any other species. They are curved, 4–10 inches long, swollen at the base, then much constricted, and suddenly dilating to a broad, wide, open mouth, with glossy shelving inner walls, and a minute row of low tubercles round the circumference; they are of a bright pea green, mottled inside with purple. The leaves closely resemble those of Edwardsiana and Boschiana in size, form, and texture, but are more linear-oblong. I have specimens of what are sent as the male flower and fruit, but not being attached, I have not ventured to describe them as such. The male raceme is eight inches long, dense flowered. Peduncles simple. Perianth with depressed glands on the inner surface, externally rufous and pubescent. Column long and slender. Female inflorescence: a very dense oblong panicle; rachis, peduncles, perianth, and fruit-covered with rusty tomentum. Capsules, two-thirds of an inch long, one-sixth of an inch broad.
We soon came upon the magnificent pitcher-plant, the Nepenthes Lowii, which Mr. Low was anxious to obtain. We could find no young plants, but took cuttings, which the natives said would grow. [...] We at last reached a narrow, rocky ridge, covered with brushwood, but with thousands of plants of the beautiful Nepenthes Lowii growing among them. [...] We sent our men on next morning to wait for us at the cave, while we stayed behind to collect specimens of the Nepenthes Lowii and the Nepenthes Villosa. The former is, in my opinion, the loveliest of them all, and its shape is most elegant. [...] The outside colour of the pitchers is a bright pea-green, the inside dark mahogany; the lid is green, while the glandular are mahogany-coloured. A very elegant claret jug might be made of this shape.
Folia mediocria petiolata, lamina lanceolata v. oblonga, nervis longitudinalibus utrinque c. 3, vagina caulis c. 2/3 amplectente ; ascidia rosularum et inferiora ignota ; ascidia superiora magna, parte inferiore globosa, medio valde constricta, os versus infundibuliformia, costis 2 elevatis, ore expanso operculum versus acuto, peristomio 0, operculo oblongo facie inferiore setis crassis longis, prope basin carina crassa obtusa ; inflorescentia racemus longus pedicellis c. 25 mm longis omnibus 2-floris ; indumentum in partibus iuvenilibus parcum tomentosum v. hirsutum, denique subnullum.
We found ourselves in a strange landscape where low bushes with thick leathery leaves constituted the predominating vegetation. Here and there smaller trees were seen, among them a conifer with trunk and larger branches practically covered with the yellow blossoms of a small, richly flowering, epiphytic orchid. Bright scarlet or snow-white flowers of rhododendron and similar plants were met with everywhere; and most noticeable were the enormous and characteristically shaped pitchers of Nepenthes lowii, hitherto recorded only from Kinabalu and Batu Lawi.
[...] a ringing gonging which we traced to tupaias scampering over the pitchers of N. lowii and banging the old empty and resonant pitchers together. The late Professor J. Harrison of Singapore discovered that a snail laid its eggs in the hairs under the lid and that the tupaias came to eat them.
Most aberrant is N. Lowii, the leaves and the stem of which are coarse, whereas the indumentum is almost absent and the pitchers show a peculiar form and have no peristome, the lid is vaulted, the midrib is keeled but has no appendage, the lower surface is covered with thick hairs, the glands of the inner surface of the pitcher are so large, that the interspaces are reduced to lines. All these characters, however seem to have little taxonomic value. The form of the pitcher is analogous to that of N. inermis of the Montanae group, which also has no peristome. The peculiar bristles on the lower surface of the lid are found less developed in N. Macfarlanei. The large, flat glands on the inner surface of the pitchers are also found in the lower part of the pitchers of N. Rajah. This is the reason why I have not distinguished a separate group for this species.
This lovely and vigorous hybrid ofN.avnr osa x lomii was created by Johannes Marabini in Germany,and can be rather variable.The pitcher shape is wide-mouthed with a thin-toothed peristome,narrowing to a waist,with a bulbous hottom.The lid is large and held upright.One vari cty.named N.x'Peter D'Amato'by Bill Baumgartl,has smaller pitchers sulidly colored blond.Chher clones haive rather sizable pitchers with paler.
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