Xanthosoma sagittifolium (L.) Schott Araceae
Arum sagittifolium L.; Arum xanthorrhizon Jacq.; Caladium belophyllum Willd.; Caladium sagittifolium (L.) Vent; Caladium xanthorrhizon (Jacq.) Willd.; Xanthosoma belophyllum (Willd.) Kunth.; Xanthosoma xanthorrhizon (Jacq.) Koch
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Synonyms Arum sagittifolium L.; Arum xanthorrhizon Jacq.; Caladium belophyllum Willd.; Caladium sagittifolium (L.) Vent; Caladium xanthorrhizon (Jacq.) Willd.; Xanthosoma belophyllum (Willd.) Kunth.; Xanthosoma xanthorrhizon (Jacq.) Koch
Local Names Indonesia: talas, keladi, talas belitung; kimpul (Sundanese); bentul, linyik (Javanese); keladi kelem, keladi (Bali); lail muti (Kupang); laku lali, lail muti (Timor Tengah Selatan). Malaysia: birah, keladi. English: elephant ear (Rojas-Sandoval and Acevedo-Rodríguez 2014; Burkill 1935; Handajani et al. 2018; Mundita 2013; Rahman et al. 2019; Sujarwo et al. 2020).
A. S. D. Irsyam (*) Herbarium Bandungense (FIPIA), School of Life Sciences and Technology (SITH), Institut Teknologi Bandung (ITB), Jatinangor, Sumedang, West Java, Indonesia e-mail: arifi[email protected] W. A. Mustaqim Botany Division, Generasi Biologi Indonesia (Genbinesia) Foundation, Gresik, East Java, Indonesia R. R. Irwanto School of Life Sciences and Technology (SITH), Institut Teknologi Bandung (ITB), Bandung, West Java, Indonesia e-mail: [email protected] © Springer Nature Switzerland AG 2020 F. M. Franco (ed.), Ethnobotany of the Mountain Regions of Southeast Asia, Ethnobotany of Mountain Regions, https://doi.org/10.1007/978-3-030-14116-5_211-1
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Botany and Ecology Description: Robust terrestrial rhizomatous herbs, up to 2 m tall. The stems stout, reaching 2 m long, most often stems not distinct, with short internodes, diameter 6– 15 cm, covered by fibers, brown. Leaves usually 4–7 per plant, with sheathing 80– 160 cm long petioles, subterete, glaucous, inner surfaces pale green, slightly glossy, sheaths more or less half of the total petiole length; the sheathed part 3–4.5 cm across, the base of free petiolar part 3 cm, while the apex of petiole 2 cm; blades sub hastate in juvenile plants, ovate-sagittate in mature plants, 55–97 30–80 cm, slightly coriaceous, has the widest point at the apex of posterior lobes, dark green, slightly glossy above, often glaucous below, posterior lobes rounded to pointed obtuse at the apex, base with V-shaped sinus, midrib immersed above, bluntly raised beneath, primary lateral veins 5–8, at an angle from 45° to 80° from the midrib, posterior rib usually naked on the leaves of the mature plants. Inflorescence solitary or up to 3 together from the leaf axils, peduncle (16–) 40–51 cm long, green, often glaucous, spathe 23–32 cm long, tube ovoid, 7–11 4–5.1 cm, dark green and sometimes glaucous outside, inner side medium green and matte; limb creamy white, navicular, 15–16 5–6.5 cm. Flowers arranged in a spadix, totally 17–27.5 cm long; at the base with bronze female portion, 3–3.5 cm long at the shortest sides, 4.5– 5.6 cm long at the longest side, basally 2.5–3 cm across, narrowed to the apex with 1.5–1.8 cm diameter; sterile portion yellow or white, 2.5–5 cm long; staminate portion 14–23 cm long, 2.3 cm across at the base, slightly tapering from the middle upward. Distribution and ecology: This is a species native to the West Indies
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