Volume 11 > Part 2 > Year 2012 > Page 307 > Araceae > Typhonium

11. Typhonium flagelliforme (G.Lodd.) Blume

Rumphia 1: 134, Tab.28. 1837; Schott, Syn. Aroid.: 19. 1856; Engl. in Engl., Pflanzenr. IV, 23F (Heft 73): 112–113, fig. 16. 1920; Gagnep. in Lecomte, Fl. Indo-Chine 6: 1175. 1942; Sookchaloem, Thai Forest Bull., Bot. 23: 24. 1995; Li & Hett. in H.Li et al., Fl. China 23: 35. 2010.— Arum flagelliforme Lodd., Bot. Cab. 4: t. 396. 1819.— Heterostalis flagelliformis (Lodd.) Schott, Oesterr. Bot. Wochenbl. 7: 261. 1857. Plate LXXXVIII: A–C.

Accepted Name : This is currently accepted.

Synonyms & Citations :

Description : Seasonally dormant herb, 5–40 cm tall. Stem a short tuberous rhizome, 1–2 cm long, depressed; petiole 15–30 cm long, green; leaf blade 5–25 by 0.5–18 cm, extremely variable, linear, lanceolate, elliptic, hastate with spreading basal lobes, all green or rarely heavily variegated. Inflorescence appearing alongside leaves; peduncle thin, 5–20 cm long; spathe 15–30 cm long, lower part convolute, 1.5–3.5 by 1.2–2 cm, ovoid, globose or depressed, externally with one to several distinct longitudinal keels, green, constricted at the top; spathe limb 7.5–25 cm long, basal part convolute, tubular, upper part expanded and sharply flexed horizontally, lanceolate, tapering to the long acuminate top, green on both sides, or the base flushed with purple; spadix shorter, as long as or slightly longer than spathe; pistillate flower zone subcylindrical, slightly fusiform, 1.5–1.8 cm long, 8–10 mm diam.; ovaries elongate, angular, pale green; sterile interstice 1–2 cm long, entirely covered with staminodes, these distant; staminodes dimorphic, the lower ones ca 6 mm long, with a horizontal white base, upper part sharply upcurved, spathulate-linguiform, with or without a purple top, upper staminodes aristate, subulate, curved downwards, white; staminate flower zone ca 5 mm long; appendix subsessile, 16–17 cm long base swollen and often deeply grooved, upper part filiform, erect or horizontal or curved downwards. Fruits pale greenish, 2–3-seeded.

Thailand : NORTH-EASTERN: Loei; EASTERN: Ubon Ratchathani; PENINSULAR: Chumphon.

Distribution : NE India through SW China to Myanmar and south through Malesia (type of Arum cuspidatum), the Philippines (type), to N Australia. For typification data see Nicolson and Sivadasan, Blumea 27: 483–497. 1981.

Ecology : Ruderal habitats, in shallow water by streams and moist meadows, often in ditches and along field margins, less often in wet open forests; 0–350 m alt.

Vernacular : Ta phit kap yao (ตะพิดกาบยาว)(Loei).