Araceae
Arisaema

Arisaema clavatum Buchet

First published in Notul. Syst. (Paris) 2: 121 (1911)
This species is accepted
The native range of this species is S. Central China. It is a tuberous geophyte and grows primarily in the temperate biome.

Descriptions

CATE Araceae, 17 Dec 2011. araceae.e-monocot.org

Vernacular
bang tou nan xing
General Description
Tuber subglobose or ovoid-globose, 2–4cm in diam. Cataphylls green, to 20cm, membranous, apex obtuse or acute. Leaves 2; petiole green, 40–60cm, proximal half sheathing; leaf blade pedate; leaflets (7–)11–15, sessile, oblong or oblanceolate, papery, base cuneate, margin entire, apex abruptly acuminate and caudate; central 5 leaflets nearly equal, 10–19 × 3–6cm, outward gradually smaller, outermost one 2–4 × 0.5–1.5cm; rachis between leaflets 5–15mm. Spathe green, sometimes purplish, with white stripes or not, 7.5–16cm in total; tube cylindric or narrowly funnelform, 3.5–8 × 1.3–2.5 cm, throat obliquely truncate or rounded, not recurved; limb oblong, 5–8 × 3–3.5cm, apex acute. Spadix unisexual; male cylindric, 1.2–1.7cm × ca. 3mm; synandria purple; anthers 2 or 3; thecae globose, dehiscing by apical pores; female conic or elliptic, 2–2.5cm × 7–8mm; ovary greenish, obovoid; ovules 3 or 4; stigma subglobose, ca. 1mm. Appendix sessile, green to purple, narrowly cylindric, 2.6–7cm, slender, ca. 1.5mm in diam., basal 2–3cm sparsely covered with acute and hooked neuter flowers (1–3mm), apex abruptly swollen into a clavate head 3–10 × 2–4mm, densely clavate-echinate.
Phenology
Fl. Apr–Jun.
Habitat
Bamboo thickets, broad-leaved forests.
[CATE]

Extinction risk predictions for the world's flowering plants to support their conservation (2024). Bachman, S.P., Brown, M.J.M., Leão, T.C.C., Lughadha, E.N., Walker, B.E. https://nph.onlinelibrary.wiley.com/doi/full/10.1111/nph.19592

Conservation
Predicted extinction risk: threatened. Confidence: confident
[AERP]

Sources

  • Angiosperm Extinction Risk Predictions v1

    • Angiosperm Threat Predictions
    • http://creativecommons.org/licenses/by/4.0

  • CATE Araceae

    • Haigh, A., Clark, B., Reynolds, L., Mayo, S.J., Croat, T.B., Lay, L., Boyce, P.C., Mora, M., Bogner, J., Sellaro, M., Wong, S.Y., Kostelac, C., Grayum, M.H., Keating, R.C., Ruckert, G., Naylor, M.F. and Hay, A., CATE Araceae, 17 Dec 2011.
    • http://creativecommons.org/licenses/by-nc-sa/3.0

  • Herbarium Catalogue Specimens

    • Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/

  • Kew Backbone Distributions

    • The International Plant Names Index and World Checklist of Vascular Plants 2024. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2023 World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0

  • Kew Names and Taxonomic Backbone

    • The International Plant Names Index and World Checklist of Vascular Plants 2024. Published on the Internet at http://www.ipni.org and https://powo.science.kew.org/
    • © Copyright 2023 International Plant Names Index and World Checklist of Vascular Plants. http://creativecommons.org/licenses/by/3.0