Gentiana phyllocalyx C. B. Cl.

Perennials 3-12 cm tall. Roots few, slender. Stolons to 5 cm. Stems ascending to erect, simple, glabrous. Leaves crowded toward base of stem. Stem leaves 3-5 pairs, widely spaced; petiole 5-8 mm; leaf blade obovate, 0.6-2.6 × 0.4-1.6 cm, base decurrent into petiole, apex rounded and emarginate, veins 1-3. Flowers terminal, solitary, sessile. Calyx pale yellow-green; tube broadly tubular, 3.5-4.5 mm; lobes linear to lanceolate, 3-4 mm, subequal, apex obtuse, veins indistinct. Corolla blue, with dark blue stripes, broadly tubular to tubular-campanulate, 3-4.7 cm; lobes ovate to broadly ovate, 3-4 mm, margin entire or erose, apex obtuse; plicae horizontally truncate, margin erose. Stamens inserted at basal part of corolla tube; filaments 1.2-1.4 cm; anthers linear to ellipsoid, 2.5-5 mm. Style 4-5 mm, linear; stigma lobes suborbicular. Capsules ovoid-ellipsoid, 2.3-2.5 cm; gynophore to 4.6 cm. Seeds compressed, orbicular, 1.4-1.6 mm. Fl. and fr. Jun-Oct.

Himalaya (Nepal to Bhutan), S.E. Tibet, N. Burma, W. China.

SE Xizang, NW Yunnan [Bhutan, India, N Myanmar, Nepal, Sikkim].

3800-5500 m

Grassland and rocky slopes, stony pastures, scrub; 3000-5200 m.

Flowering and fruiting from June to October.

Gentiana phyllocalyx is occurring in SE Xizang, NW Yunnan of China, Bhutan, India, N Myanmar, Nepal, Sikkim.

Perennials 3-12 cm tall. Roots few, slender. Stolons to 5 cm long. Stems ascending to erect, simple, glabrous. Leaves crowded toward base of stem. Stem leaves 3-5 pairs, widely spaced; petiole 5-8 mm long; leaf blade obovate, 0.8-2.6 cm long, 0.5-1.5 cm wide, base decurrent into petiole, apex rounded and emarginate, veins 1-3. Flowers terminal, solitary, sessile. Calyx pale yellow-green; tube broadly tubular, 3.5-4.5 mm long; lobes linear to lanceolate, 3-4 mm long, subequal, apex obtuse, veins indistinct. Corolla blue, with dark blue stripes, broadly tubular to tubular-campanulate, 3-4.5 cm long; lobes ovate to broadly ovate, 3-4 mm, margin entire or erose, apex obtuse; plicae horizontally truncate, margin erose. Stamens inserted at basal part of corolla tube; filaments 1.2-1.4 cm long; anthers linear to ellipsoid, 2.6-5 mm long. Style 4-5 mm long, linear; stigma lobes suborbicular. Capsules ovoid-ellipsoid, 2.3-2.5 cm long; gynophore to 4.6 cm. Seeds compressed, orbicular, 1.4-1.6 mm long.

Growing in grassland and rocky slopes, stony pastures, scrub; 3200-5000 m.

Gentiana phyllocalyx là một loài thực vật có hoa trong họ Long đởm. Loài này được C.B.Clarke mô tả khoa học đầu tiên năm 1883.

叶萼龙胆（学名：Gentiana phyllocalyx）是龙胆科龙胆属的植物。分布于灌丛、石砾山坡、山坡草地、岩石上以及中国大陆的云南、西藏等地，生长于海拔3,000米至5,200米的地区，多生于山坡石地草甸、山坡草甸和溪边，目前尚未由人工引种栽培。