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3. Arisaema sect. Clavata (Engler) H. Hara, Bull. Univ. Mus. Univ. Tokyo. 2: 347. 1971.
云台南星组 yun tai nan xing zu
Arisaema [unranked] Clavata Engler, Pflanzenr. 73(IV. 23F): 171. 1920.
Underground stems tuberous, whitish inside, axillary buds with accessory buds. Phyllotaxy quincuncial, normal leaves pedate. Spadix appendix sessile, with neuter flowers in proximal part.
Six species: C China to Japan; four species (all endemic) in China.
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| 1 |
Appendix narrowly fusiform, attenuate distally, slightly bent outward. |
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20 A. hunanense |
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Appendix cylindric, erect, apex rounded, capitate or creased |
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(2) |
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| 2 (1) |
Appendix slender, erect, apex abruptly capitate and echinate, slightly exserted from spathe tube. |
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21 A. clavatum |
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Appendix stout, not capitate, long exserted from spathe tube |
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(3) |
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| 3 (2) |
Appendix smooth. |
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18 A. silvestrii |
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Appendix twisted and creased in distal section. |
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19 A. ilanense |
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