Myosoton aquaticum

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Myosoton aquaticum

Description

Perennial or annual prostrate or erect herbs. Leaves thin, ovate to elliptic, 15-65(-80) by 5-30 mm, base obtuse or cordate, apex acuminate, nerves 3, the lower ones subsessile or with a short petiole up to c. 8 mm; Inflorescence a terminal open cyme with 5-20 flowers; Flowers 10-15 mm diameter. Sepals 5, free, ovate, c. 4.5 by 2.5 mm, with scarious margin, acute mucronate, outside glandular hairy. Petals 5, white, divided almost to the base, slightly longer than the sepals. Stamens 10, filaments dilated at the base, anthers orbicular, yellowish or pale violet, sometimes abortive. Ovary unilocular; Capsule ovoid, longer than calyx, opening by 5, shortly bifid, blunt teeth. Seeds up to 20 per capsule, small, reniform, tuberculate, brown.

Distribution

Aceh present, Asia-Tropical, Berastagi present, Northern Sumatra present, Temperate Eurasia present, tropical Asia to China, Japan, Korea, Vietnam, and Thailand present
Temperate Eurasia, widely introduced in tropical Asia to China, Japan, Korea, Vietnam, and Thailand. In Malesia only recorded from northern Sumatra (Aceh, Berastagi).

Taxonomy

Some authors include this species in the genus Stellaria. Here the viewpoint of Bittrich, l.c., and other recent floristic works in Europe and Asia have been followed.

Uses

Locally used as a vegetable.

Citation

Edgew. & Hook. f. 1874 – In: Fl. Brit. India. p 229
Fries 1943: Fl. Gén. Indo-Chine. p 240
Hara 1979 – In: Enum. Flow. Pl. Nepal. p 57
Jalas & Suominen 1983 – In: Atlas Fl. Eur. p 122
K. Larsen 1989: p. 82. – In: Fl. Camb., Laos & Vietnam. f. 11: 1-6
Gagnepain 1909 – In: Fl. Gén. Indo-Chine. p 263
Lu Dequan & M.G. Gilbert 2001 – In: Fl. China. p 38
Ying 1996: p. 373. – In: Fl. Taiwan, ed. 2. f. 174
Mizush. 1966: Fl. E. Himal. p 82
N.C. Majumdar 1993 – In: Fl. India. p 548
Moench 1992 – In: Fl. Thailand. p 422
Ke Ping 1996: p. 74. – In: Fl. Reip. Pop. Sin. f. 16: 1-9
Pham-hoàng Hô 1991: p. 934. – In: Ill. Fl. Vietnam. f. 2625