Wahlenbergia marginata Thunb DC

[After Georg Goran Wahlenberg, 19th century Swedish professor of botany and from Latin, margo = margin]

Synonymy: Wahlenbergia gracilis DC., Campanula gracilis G. Forst.

Common names: Southern rockbell.

Uses: In Cambodia, Laos, and Vietnam, Wahlenbergia marginata (Thunb.) DC. is used to treat pulmonary diseases. In Indonesia, the plant is used to treat skin eruption.

Fig. 339. Wahlenbergia marginata (Thunb.) DC. From: KLU Herbarium 14125. Field collector & botanical identification: Nakaike. 15 June 1969. Geographical localization: Japan, open place near seashore, Shizuoka Pref., Numazu-shi, Senbonhama.

Physical description: It is a slender herb which grows to a height of 50 cm in a geographical area, ranging from India to Papua New Guinea, Australia and Japan. Leaves: spiral, simple, without stipules and sessile. The blade is lanceolate-linear, 1,7 cm x 1 mm-2 cm x 2 mm, laxly serrate and recurved. The calyx is 5-lobed and 4 mm long, the lobes being triangular. The corolla is tubular, 5-lobed, purplish, 5 mm x 8 mm. The fruits are conical, membranaceous, 5-lobed, indehiscent, 8 mm x 4 mm capsules filled with numerous tiny seeds (Fig. 339).

Fig. 339. Wahlenbergia marginata (Thunb.) DC. From: KLU Herbarium 14125. Field collector & botanical identification: Nakaike. 15 June 1969. Geographical localization: Japan, open place near seashore, Shizuoka Pref., Numazu-shi, Senbonhama.

Pharmaceutical interest: The pharmacological property of Wahlenbergia marginata (Thunb.) DC. remain unexplored. However, the plant is known to

OH OH

OH OH

Wahlenoside B

produce a series of phenylpropanoids glycosides such as wahlenoside B (Tan RX eta/., 1998) and lobetyolin (Ma WG etal., 1997).

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