Gentiana scabrida aka Gentiana Scabrida

Gentiana scabrida is native to the alpine zones of Taiwan and the northern Philippines (Luzon), with the species name 玉山龍膽 ("Yushan gentian") and Japanese ニイタカリンドウ both honouring Mt Yushan, Taiwan's highest peak. It was originally described as a Taiwan endemic by Hayata in 1908; only in 1995 was the Philippine Gentiana luzoniensis reclassified as G. scabrida subsp. luzoniensis, formally extending the range. GBIF and the World Checklist of Vascular Plants both record the species as native to Taiwan (TDWG TAI) and the Philippines (TDWG PHI), with no documented occurrences elsewhere.

Gentiana scabrida is a variable species with five accepted infraspecific taxa recognised in GBIF and the Catalogue of Life: subsp. scabrida (the Taiwanese type), subsp. horaimontana (basionym Gentiana horaimontana Masam.), subsp. itzershanensis (basionym G. itzershanensis T.S.Liu & Chin C.Kuo), subsp. luzoniensis (the Philippine population, basionym G. luzoniensis Merr.) and subsp. punctulata S.S.Ying. A separate variety G. s. var. punctulata, the "black-spotted gentian" (黑斑龍膽), shows particularly dark flower spotting; published genetic analyses cited on Chinese Wikipedia suggest it sits closer to G. itzershanensis and may eventually be split off as its own species.

Gentiana scabrida produces small bell-shaped flowers borne on a low plant only 10–15 cm tall. The corolla is pale yellow to yellow and is marked in the throat with dark yellow or brown spots, a freckled pattern that distinguishes it from the deep-blue trumpets typical of better-known European gentians. As a member of genus Gentiana the flowers are pentamerous (five-parted), in line with the genus description of "mostly large trumpet-shaped flowers" though here scaled down to alpine proportions.

Gentiana scabrida is a small alpine herb, with measured plant heights of only 10–15 cm. The stems are rough to the touch (the species epithet scabrida refers to this roughness) and bear lanceolate leaves that fold inward along the midrib, reinforcing its low, tufted habit suited to exposed high-elevation sites.

No horticultural source specifically addresses Gentiana scabrida — the species is essentially absent from PFAF, Useful Tropical/Temperate Plants, the RHS, and Oregon State Landscape Plants. The Wikipedia overview of the genus Gentiana notes that "many gentians are difficult to grow outside their wild habitat," and as a high-elevation Taiwan/Philippines alpine endemic G. scabrida fits the profile of a specialist alpine subject rather than a general garden plant. Expect cultivation outside its native cool, well-drained, high-elevation conditions to be challenging.

Gentiana Scabrida should be watered regularly, allowing the soil to dry out between waterings.

Gentiana Scabrida loves a well-draining soil. Perlite and vermiculite help with drainage, while coco coir adds organic matter, so a good potting soil mix will have all three. You can improve store-bought soil by adding some perlite to it.

Gentiana Scabrida thrives in bright and direct sunlight. To ensure your plant receives enough light to survive, place it less than one foot from a window. The current weather in your area may affect the placement in your home. For example, if you live in a region that has longer and more intense periods of sunlight, then you may want to place the plant farther away from the window to avoid direct sunlight and reduce the risk of sunburn. Alternatively, if you live in a region with relatively milder temperatures and less intense sunlight, then you may be able to place the plant closer to the window for increased exposure. Ultimately, the current weather in your area should be taken into consideration when determining the best placement for your Gentiana Scabrida Horaimontana.

The growth rate of Gentiana Scabrida is slow and it doesn't necessitate additional fertilizing. By changing the soil in its pot annually, the plant should be provided with adequate nutrition. It is crucial to keep in mind that plants derive their energy from the sun, not fertilizers.

The toxicity level of this plant has not been officially confirmed by Ploi. If there is a possibility of ingestion of plant material with an uncertain toxicity by you, a family member, or a pet, it is advisable to seek the assistance of a medical professional.