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Chinese Plant Names | Family List | Primulaceae | Lysimachia

Lysimachia siamensis Bonati


Description from Flora of China

Herbs perennial, 15--35 cm tall. Stems prostrate, ascending, often branched in upper part, with grayish brown multicellular hairs. Leaves opposite, upper 2 pairs ± crowded; petiole 1/3--1/2 as long as leaf blade, narrowly winged, pilose; leaf blade ovate to elliptic-ovate, 1.5--4 X 1--2.2 cm, with multicellular hairs, base broadly cuneate, apex acute. Inflorescences at apex of stems and branches, in loose or compact capitate clusters, 2--4-flowered. Pedicel 3--8 mm, densely pubescent. Calyx lobes lanceolate, 6--7 mm, abaxially pilose. Corolla yellow; tube ca. 2 mm; lobes elliptic to elliptic-lanceolate, 0.9--1.2 cm, epunctate, apex acute. Filaments connate basally into a ca. 2.5 mm high tube, free parts 2--3 mm; anthers dorsifixed, opening by lateral slits, 1.6--1.8 mm. Ovary pubescent apically; style ca. 7 mm. Capsule globose, shorter than persistent calyx. Fl. Apr-May.

Grassy mountain slopes; 300--500 m. S Yunnan [Myanmar, Thailand, Vietnam]


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