Markéta Teodoridu:
Stachyuraceae | Stachyurus
2. Stachyurus yunnanensis Franchet; J. Bot. (Morot). 12: 253. 1898.
????? yun nan jing jie hua
Stachyurus callosus C. Y. Wu ex S. K. Chen; S. esquirolii H. Léveillé; S. oblongifolius F. T. Wang & T. Tang; S. yun nanensis var. pedicellatus Rehder.
Shrubs evergreen; 1-3 m tall. Bark dark gray. Petiole 1-2.5 cm; stout; leaf blade elliptic-oblong to oblong-lanceolate; rarely obovate-lanceolate; 7-15 x 2-4 cm; leathery or thinly leathery; both surfaces glabrous; midvein conspicuously raised abaxially; lateral veins 5-7-paired; inconspicuous on both sides; base cuneate or obtuse; margin serrulate throughout; apex acute; acuminate; caudate-acuminate; or obtuse. Spikes 12-22-flowered; 3-8 cm; peduncles short; 5-10 mm. Flowers subsessile; bract triangular; ca. 1.5 mm; apex acute; bracteoles triangular-ovate; ca. 2.5 mm; apex acute. Sepals ovate-orbicular; ca. 3.5 mm. Petals yellow to white; obovate-orbicular; 5.5-6.5 x ca. 4 mm; apex obtuse. Ovary bottle-shaped; glabrous; style ca. 6 mm. Fruit globose; 6-7 mm in diam. Fl. Mar-Apr; fr. Jun-Sep. 2n = 24*.
Evergreen broad-leaved forests on mountain slopes; thickets at forest margins; 800-1800 m. Chongqing; N Guangdong (Yangshan); SW Guangxi; Guizhou; W Hubei; W Hunan; Sichuan; Yunnan [N Vietnam].
This fairly widely distributed species is characterized by having leaves elliptic-oblong to oblong-lanceolate; and leathery or thinly leathery. Plants from Gongshan; NW Yunnan; have leaves relatively long caudate; and those from Emei Shan; Sichuan; have somewhat larger leaves. Some plants with obovate-lanceolate leaves look very similar to Stachyurus obovatus; and differ only in having relatively shortly caudate; narrower leaves; with their margins serrulate throughout.
The length of the fruit stalk shows some variation between and within populations. However; the difference is so tenuous that it seems not justifiable