Araceae
Sauromatum

Sauromatum gaoligongense J.C.Wang & H.Li

First published in Acta Bot. Yunnan., Suppl. 11: 61 (1999)
This species is accepted
The native range of this species is China (W. Yunnan). It is a tuberous geophyte and grows primarily in the subtropical biome.

Descriptions

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

General Description
Tuber depressed globose, ca. 2cm high, 2.5–3.5cm in diam., producing several annual offsets. Petiole uniformly green or dark purple, to 40cm, proximally often developing intercalary, irregular bulbils; leaf blade deeply 5–13-pedatifid; central lobe elliptic to obovate, to 12 × 5cm; lateral lobes progressively smaller. Inflorescence appearing before leaves; peduncle largely subterranean, yellowish green with a few scattered purple spots, 4–5cm × 3–6mm. Spathe closed at base, outside purplish brown, inside whitish, base triangular-ovate, to 3 × 2.8cm, tapering to constricted apex; limb strongly convolute at base, slightly arching, outside brownish purple with a few darker spots, inside pale purple, narrowly oblong, ca. 7 × 2.5cm, apex long acuminate. Spadix shorter than spathe, ca. 6cm; female zone cylindric, ca. 4 × 5–6mm; ovary obovoid, 1-loculed, 2-ovuled; sterile zone narrowly conic, ca. 3cm, carrying staminodes in proximal half, these distally progressively shorter and finally disappearing, distally grooved, verruculose; staminodes clavate, distally changing to aristate and upcurved; male zone oblong, ca. 1cm × 3mm; male flowers purple, with 1 stamen, pores apical; appendix stipitate, clavate, ca. 1.6cm, apex narrowly fusiform-conic, rugose.
Habitat
Broad-leaved evergreen forests, shaded ravines.
Vernacular
gong shan ban long yu
[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

  • Kew Backbone Distributions

    • The International Plant Names Index and World Checklist of Vascular Plants 2025. 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 2025. 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