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FOC | Family List | FOC Vol. 23 | Araceae | Arisaema

68. Arisaema exappendiculatum H. Hara, J. Jap. Bot. 40: 21. 1965.

圈药南星 quan yao nan xing

Tuber depressed globose, 2-5 cm in diam., sometimes with thick creeping stolons. Cataphylls purple. Leaf solitary; petiole green, sometimes dark purple, 23-55 cm, proximally sheathing into pseudostem; leaf blade radiate; leaflets 7-13, sessile, oblanceolate, 8-22 × 2-4 cm, base cuneate, apex long acuminate. Peduncle green, sometimes purplish, much shorter than petioles. Spathe green, occasionally dark purple, slightly glaucous inside; tube pale green, without distinct stripes, cylindric, 2-7 × 1.2-2 cm, not broadened nor spreading at throat; limb suberect, ovate-lanceolate, 8-15 × 2.5-3 cm (at base), generally with inrolled margins, convolute, tapering into a long caudate apex 5-8 cm. Spadix unisexual, 1.5-3 cm including appendix; female zone ca. 1.2 cm in diam. at base; ovary green, turbinate, slightly angular, apex apiculate; stigma small; male zone 7-8 mm in diam. at base; synandria lax; anthers stipitate, circumscissile at apex. Appendix absent, or very rarely broadly cylindric, to 1.5 cm. Fl. May-Jun.

Forests on slopes, grasslands between forests; 2400-2500 m. S Xizang [Nepal].


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