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FOC | Family List | FOC Vol. 17 | Lamiaceae | Pogostemon

10. Pogostemon griffithii var. latifolius C. Y. Wu & Y. C. Huang, Fl. Yunnan. 1: 744. 1977.

宽叶 kuan ye chang zhu ci rui cao

Herbs. Stems erect, to 2 m tall, densely appressed pubescent. Petiole 0.5-1.5 cm; leaf blade ovate to broadly ovate, 5.5-8.5 × 3.5-5.8 cm, herbaceous, adaxially appressed pubescent, abaxially densely pubescent, base obtuse, margin irregularly double serrate, apex acute; lateral veins 3-paired, conspicuously raised abaxially. Spikes cylindric, (1.5-)5-10 × ca. 1.2 cm, terminal and axillary; verticillasters many flowered, densely appressed pubescent; peduncle 0.5-3.5 cm; bracteoles ovate-lanceolate to lanceolate, 2-2.5 mm, densely pubescent, ciliate. Calyx narrowly campanulate, 4-5 mm, pubescent outside; teeth equal, triangular-lanceolate, ca. 1/2 as long as calyx tube. Corolla bluish, ca. 6 mm, sparsely pubescent on upper lip outside. Bearded parts of stamens exserted. Fl. Mar.

* Dense valley forests; ca. 700 m. Yunnan (Ximeng Xian)

The typical variety in Myanmar has leaves 10 × 2.5–3 cm, calyx ca. 4 mm, spikes 2–6 cm × 8 mm. Pogostemon griffithii var. latifolius may be only a form, but more material is needed for resolution.


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