Dear dewflower (Murdannia japonica)

Dear dewflower (Murdannia japonica) is a plant species in the Commelinaceae, perennial herb, fibrous roots, short main stem, fertile stem emerges from the base of the main stem, erect, hairy, up to 80 cm tall, grows in damp forests, forest borders, shrubs, edges road with an elevation of 200-2000 meters.

M. japonica has several leaves growing on the main, basal and rosulate stems. The leaves are narrow oval in shape, 8-20 cm long, 2-5 cm wide, with pointed tips and green color.

Inflorescences in terminal panicles with stalks up to 20 cm long, straight, branched, green and dark red. The elliptical sepals are narrow and 0.5-6 mm long. Flowers are purple or blue or white and ovate.

Capsule ellipsoid, trigonous, 5x4 mm, obtuse at both ends. Seeds with 2-4 per valve, uniseriate, brown-gray and tetragonal. Flowers bloom in May-July or August-September.

TAXON

Kingdom: Plantae
Phylum: Tracheophyta
Subphylum: Angiospermae
Class: Liliopsida
Order: Commelinales
Family: Commelinaceae
Subfamily: Commelinoideae
Tribe: Commelineae
Subtribe: Murdanniinae
Genus: Murdannia Royle in Ill. Bot. Himal. Mts.: 403 (1840)
Species: Murdannia japonica (Thunb.) Faden in Taxon 26: 142 (1977)

HOMOTYPIC SYNONYMS

Aneilema japonicum (Thunb.) Kunth in Enum. Pl. 4: 70 (1843)
Commelina japonica Thunb. in Trans. Linn. Soc. London 2: 332 (1794)
Dirtea japonica (Thunb.) Raf. in Fl. Tellur. 3: 69 (1837)

HETEROTYPIC SYNONYMS

Aneilema cordatum Buch.-Ham. ex Wall. in Numer. List: n.° 5223 (1831)
Aneilema elatum (Vahl) Kunth (1843)
Aneilema herbaceum (Roxb.) Wall. in Numer. List: n.° 5223 (1831)
Aneilema latifolium Wight in Icon. Pl. Ind. Orient.: t. 2072 (1853)
Aneilema lineolatum (Blume) Kunth (1843)
Commelina elata Vahl in Enum. Pl. Obs. 2: 178 (1805)
Commelina herbacea Roxb. in Fl. Ind. 1: 179 (1820)
Commelina lineolata Blume in Enum. Pl. Javae 1: 3 (1827)
Murdannia elata (Vahl) G.Brückn. in H.G.A.Engler, Nat. Pflanzenfam., ed. 2. 15a: 173 (1930)
Murdannia lineolata (Blume) J.K.Morton in J. Linn. Soc., Bot. 59: 474 (1966)
Phaeneilema herbaceum (Roxb.) G.Brückn. in Notizbl. Bot. Gart. Berlin-Dahlem 10: 56 (1927)
Tinantia lineolata (Blume) Hassk. in Pl. Jav. Rar.: 98 (1848)

PUBLICATIONS

Acharya, J., Banerjee, D. & Mukherjee, A. (2009). A contribution to the study of Commelinaceae R.Br. in Darjeeling - Sikkim Himalayas. Pleione 3(1): 18-27.

Govaerts, R. (2004). World Checklist of Monocotyledons Database in ACCESS: 1-54382. The Board of Trustees of the Royal Botanic Gardens, Kew.

Sharief, M.U. (ed.) (2024). Flora of India 28: 1-764. Botanical Survey of India.

VERNACULAR NAME

English: Dear dewflower
Indonesian: Bunga embun
Java: Kembang embun

Aryo Bandoro
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