- Scientific Name: Mackaya neesiana (Wall.) Das
- Ref: Fl. Assam 3:447. 1939
- Synonym: Ruellia neesiana Wall., Asystasia neesiana (Wall.) Nees, Asystasiella neesiana (Wall.) Lindau
- Chinese Common Name: 白接骨 bái∙jiēgǔ, 尼氏拟马偕花 Ní-shi nǐ∙mǎxiéhuā, 尼氏号角花 Ní-shi hàojiǎo∙huā
- Family: Acanthaceae
- Genus: Mackaya
- Distribution: Evergreen broad-leaved forests, moist banks, streamsides, disturbed sites, ditches, trails; 100-1800 m. Anhui, Fujian, Guangdong, Guangxi, Guizhou, Hubei, Hunan, Jiangsu, Jiangxi, Sichuan, Taiwan, Yunnan, Zhejiang [India, Indonesia, Laos, Malaysia, Myanmar, Thailand, Vietnam].
- Photo: 07/25/2012, Mt. Emei, Sichuan
- Note: Asystasiella neesiana (Wall.) Lindau in FRPS 70:218, 2002.
Herbs to 1 m tall. Stems 4-angled, sulcate, 2-fariously puberulent to subglabrous. Petioles 0.5-5 cm, glabrous or sparsely pubescent; leaf blade lanceolate to ovate to elliptic to oblong or uppermost sometimes ovate-cordate, 4-25 × 2-11 cm, both surfaces glabrous or slightly pubescent, secondary veins 6-8, base attenuate and decurrent onto petiole (or cordate for uppermost leaves), margin entire to sinuate-crenate to subdentate, apex acuminate. Inflorescences terminal, spikes or racemes, unbranched or with one or more basal branches forming a panicle, 6-15 cm; rachis usually gland-tipped pubescent; bracts and bracteoles triangular, 1-2 × ca. 1 mm, minutely pubescent. Pedicel (0-)1-3 mm. Calyx 4-6.5 mm; lobes linear-lanceolate, usually gland-tipped pubescent. Corolla pink to purplish blue, 4-6 cm, outside gland-tipped pubescent; tube with cylindric basal portion narrow, elongate, 3-4 cm, at least 2 × as long as throat and limb combined; lobes of lower lip ovate, ca. 6 × 8 mm; lobes of upper lip suborbicular, ca. 7 × 7 mm. Stamens with longer pair ca. 5 mm, shorter pair ca. 2 mm; anther thecae subequally inserted. Style 3.6-5.2 cm, glabrous. Capsule 1.8-2.8 cm, gland-tipped pubescent, 4-seeded, basal stalk 1-1.5 cm. Seeds ovate in outline, ca. 4 × 3 mm, compressed. Fl. Jul-Sep, fr. Oct-Jan. (Flora of China)
08/14/2010, Qingliangfeng, Zhejiang
09/09/2015, Hangzhou Botanical Garden