Fraxinus malacophylla Hemsl.

Trees to ca. 10 m. Branchlets ridged, 4-angled when young, brown tomentose; buds naked. Leaves to ca. 25 cm; petiole 2-5 cm; axis densely brown tomentose; leaflets 9-15, sessile or subsessile; leaflet blade elliptic to lanceolate-elliptic, (1.5-)3-8(-10) × (1-)1.5-4 cm, thin leathery, adaxially densely brown tomentose to glabrescent, abaxially densely pale villous to yellow tomentose, especially denser along veins and margin, base cuneate to broadly cuneate, rarely rounded, oblique, margin entire, apex acute or obtuse to retuse; primary veins 7-10 on each side of midrib. Panicles terminal or lateral, ca. 16 cm, many flowered; bracts linear, 2-3 mm. Flowers bisexual, appearing after leaves. Pedicel ca. 3 mm. Calyx cupu-lar, ca. 1 mm, apically truncate or with broadly deltate teeth. Corolla white; lobes linear, ca. 3 mm. Stamens scarcely exceeding corolla lobes. Samara narrowly spatulate, 3-4 cm × 6-7 mm; wing decurrent to about middle of nutlet. Fl. Jun, fr. Sep-Oct.

Trees to ca. 7 m. Branchlets ridged, 4-angled when young, brown tomentose; buds naked. Leaves 9-16 cm; petiole 2-3 cm; axis brown tomentose; leaflets (11-)15-25, subsessile; leaflet blade elliptic to oblong, (1.5-)2.5-4.5 x 1-2 cm, thin leathery, adaxially glabrescent, abaxially yellowish tomentose along veins, base cuneate to broadly cuneate, rarely rounded, oblique, margin entire, apex acute or retuse; primary veins 6-8 on each side of midrib. Panicles terminal or lateral, 5-9 cm, many flowered; bracts subspatulate, 5-7 mm. Flowers bisexual, appearing after leaves. Pedicel ca. 2 mm. Calyx cuplular, ca. 1 mm, apically truncate or with broadly deltate teeth. Corolla white; lobes linear, ca. 3 mm. Samara narrowly spatulate, 2-2.5 cm x 4-5 mm; wing decurrent to about middle of nutlet. Fl. Jun, fr. Sep-Nov.

Guangxi, Yunnan [Thailand]

Yunnan

Secondary forests and dry rocky slopes in calcareous montane regions; 500-1900 m.

* Dry rocky slopes; ca. 2000 m.

Fraxinus retusifoliolata Feng ex P. Y. Bai.

Fraxinus malacophylla is a species of ash tree native to China, where it is found in Guangxi and Yunnan provinces, and Thailand.

白枪杆（学名：Fraxinus malacophylla）是木犀科梣属的植物，是中国的特有植物。分布于中国大陆的广西、云南等地，生长于海拔500米至1,500米的地区，多生于石灰岩山地次生林中，目前尚未由人工引种栽培。