Utricularia spinomarginata is a terrestrial lithophytic

Lithophyte

Lithophytes are a type of plant that grows in or on rocks. Lithophytes feed off moss, nutrients in rain water, litter, and even their own dead tissue....

 carnivorous plant

Carnivorous plant

Carnivorous plants are plants that derive some or most of their nutrients from trapping and consuming animals or protozoans, typically insects and other arthropods. Carnivorous plants appear adapted to grow in places where the soil is thin or poor in nutrients, especially nitrogen, such as acidic...

 that belongs to the genus

Genus

In biology, a genus is a low-level taxonomic rank used in the biological classification of living and fossil organisms, which is an example of definition by genus and differentia...

 Utricularia. It is endemic to the northern Thailand

Thailand

Thailand , officially the Kingdom of Thailand , formerly known as Siam , is a country located at the centre of the Indochina peninsula and Southeast Asia. It is bordered to the north by Burma and Laos, to the east by Laos and Cambodia, to the south by the Gulf of Thailand and Malaysia, and to the...

 province of Phitsanulok

Phitsanulok Province

Phitsanulok is a provinces of Thailand, located in the north. Neighboring provinces are Loei, Phetchabun, Phichit, Kamphaeng Phet, Sukhothai, Uttaradit. In the north-east it also has a short border with Xaignabouli of Laos....

 on Phu Soi Dao, where it is only known from the type locality

Biological type

In biology, a type is one particular specimen of an organism to which the scientific name of that organism is formally attached...

. It grows on wet cliffs at altitudes around 2000 m (6,562 ft). Utricularia spinomarginata is easily distinguished from other members of section Phyllaria

Utricularia sect. Phyllaria

Utricularia sect. Phyllaria is a section in the genus Utricularia. The sixteen species in this section are small or very small lithophytic or epiphytic carnivorous plants native to the mountains of Asia, ranging from India to China and New Guinea. One species, Utricularia striatula, is an exception...

by its deeply dissected yellow-white to pink-white 5-lobed corollas and the marginal spine-like hairs on the obovoid seeds. It has been found growing in the presence of U. phusoidaoensis

Utricularia phusoidaoensis

Utricularia phusoidaoensis is a terrestrial lithophytic carnivorous plant that belongs to the genus Utricularia. It is endemic to the northern Thailand province of Phitsanulok on Phu Soi Dao, where it is only known from the type locality. It grows on wet cliffs at altitudes around...

. It was first formally described by Piyakaset Suksathan (of the Queen Sirikit Botanic Garden

Queen Sirikit Botanic Garden

The Queen Sirikit Botanical Garden in Amphoe Mae Rim, Chiang Mai Province, Thailand was opened in 1992 and is maintained under the auspices of the Thai Ministry of Natural Resources and Environment. The facility's purpose is to conduct and promote botanical research, biodiversity and to conserve...

) and John Adrian Naicker Parnell (of Trinity College, Dublin

Trinity College, Dublin

Trinity College, Dublin , formally known as the College of the Holy and Undivided Trinity of Queen Elizabeth near Dublin, was founded in 1592 by letters patent from Queen Elizabeth I as the "mother of a university", Extracts from Letters Patent of Elizabeth I, 1592: "...we...found and...

) in 2010 from collections made by Suksathan in 2007.