우영사마귀풀-[정명] Murdannia loriformis (Hassk.) R.S.Rao & Kammathy

과명	Engler- APG Ⅳ- Commelinaceae (닭의장풀과)	속명	Murdannia (사마귀풀속)
전체학명	[정명] Murdannia loriformis (Hassk.) R.S.Rao & Kammathy	추천명	우영사마귀풀
		외국명	Severalflower dewflower, 牛軛草 , シマイボクサ

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Description

Herbs annual. Roots rhizomes absent, fibrous, roots at the nodes. Stems erect to decumbent, rarely branched. Leaves alternate, sessile; sheath glabrous, ciliate; leaf blade oblong-linear to lanceolate-linear, 2.5–7.3 cm long, 0.4–0.6 cm wide, apex acute, base rounded, margin entire, scabrous, usually undulate, glabrous, ciliate. Inflorescence cincinnus, axillary or terminal, solitary, rarely paired terminally; bract
leaf-like; bracteoles caducous; more than 1 flower. Flowers zygomorphic, andromonoecious; sepals 3, ovate or elliptic, 1.5–3.0 mm long, 1.3–1.4 mm wide, pale green, glabrous; petals 3, ovate, 5.1–7.4 mm long, 4.8–5.7 mm wide, white to pale pink; stamens 2, antesepalous, dorsifixed, filaments pale pink to purple, base stouter, densely bearded with pink to purple hair, anthers blue or purple, pollen white to pale
yellow; staminodes 2–4, antepetalous 3, antesepalous 1, filaments glabrous to slightly haired, white to pale pink, antherodes 3-lobed, white to pale yellow; pistil 1, ovary elliptic, style curved, glabrous. Fruits capsule, ovate, 3.2–3.8 mm long, 2.3–3 mm wide, valves 3, seeds 2 per valve. Seeds oblong, 1.2–1.3 mm long, 1–1.1 mm wide, foveolatereticulate, brown.

Distribution

Pakistan, India, Myanmar, China, Indonesia, Philippines, Bangladesh, Nepal, Papua New Guinea, Australia, United States, Mexico, Cuba, Dominican Republic, Guatemala, Panama, Venezuela, Brazil, Colombia, Bolivia, Uruguay, Suriname, Japan, South Korea.

Note

M. nudiflora is morphologically similar to M. keisak in its decumbent stem, roots at the node, linear to lanceolate leaf blade, and axillary or terminal inflorescence. However, the two species differ in their root, inflorescence, and capsule characteristics. M. nudiflora has no rhizomes, more than one flower (up to 12 in native regions, such as India), and bracteoles are caducous. In contrast, M. keisak has rhizomes, usually one flower, and the bracteoles are persistent. In terms of fruits and seeds, M. nudiflora has smaller capsules than those of M. keisak, has two seeds per valve, and the surface of the seeds is foveolate-reticulate. The capsules of M. keisak are more than 5 mm in length, and their valves contain 2–4 slightly flattened seeds.

Reference

Kang, E.S., C.W. Kim, D.C. Son, M.-Y. Yim and S.J. Ji. 2023. Ipomoea heptaphylla and Murdannia nudiflora: new records for the flora of Korea. Korean Journal of Plant Taxonomy 53(3): 222-229.

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