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This species is accepted, and its native range is NE. Iran to Central Asia and W. Nepal.
Arum jacquemontii

[CATE]

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

Distribution
NE Iran, N Afghanistan, N Pakistan, N India, Nepal, W China.
Phenology
Flowering April to May.
Habitat
Amongst rocks in damp soil pockets and crevices, occasionally along damp field edges.
General Description
Tuberous herb sprouting in late autumn from a discoid, vertically orientated tuber 2-5 cm across, 2-2.5 cm thick. Petiole terete, 10.5-28 cm long, 2.5-4.4 mm wide, mid-green, stained with dull purple . Leaf- blade sagittate to sagittate-hastate, apex acute, 11-30 cm long, 4-12 cm wide, dark to mid-green. INFLORESCENCE unscented. Peduncle exceeding the leaves, terete, 11-32 cm long, 5-7 mm wide, pale green below, deep green above. Spathe 12-22 cm long; spathe-tube oblong-cylindric, 2.5-4 cm long, 1.2-1.6 cm wide, slightly constricted apically, exterior green, interior white; spathe-limb narrowly lanceolate, 9-18 cm long, 1-3 cm wide, erect at first but soon flopping forwards, acuminate, externally mid-green with faint purple staining, internally dull purple , deeper along the middle, brownish purple to purple apically, paler below. Spadix c. ? - ¾ as long as the spathe-limb , 9-20 cm in total length; appendix cylindric, tapering basally, 6-17 cm long, 3-7 mm wide, dull yellow to orange-brown, purple or brownish purple, base paler. Staminodes in 2 or 3 whorls forming a zone 3-5 mm long; bristles filiform, flexuous, 2-2.5 mm long, glossy deep violet; bases barely conic, verrucate, dark purple. Interstices : upper 1.5-2 mm long, ± smooth, cream; lower 2.5-3 mm long, longitudinally ridged, cream. Staminate flowers in an oblong zone 6-7 mm long, 4-5 mm wide; anthers and connectives maroon. Pistillodes in 3 or 4 whorls forming a zone 3-4 mm long; bristles subulate-filiform, 3-4.5 mm long, glossy deep violet; bases bulbiform, verrucate, dark purple. Pistillate flowers in an oblong-cylindric cluster 15-17 mm long, 5-6 mm wide; ovaries oblong, 2-3 mm long, pale greenish yellow; stigma pale greyish mauve. Fruiting spike cylindric, 4-4.5 cm long, 1.8-22 cm wide; berries oblong, 4-9 mm long, 3-4 mm wide. Germination hypogeal.
Diagnostic
Inflorescence borne above leaves. Petioles dull purple. Spathe-limb interior purple. Spadix ? - ¾ as long as the spathe-limb; staminodes and pistillodes with long flexuous bristles and purple bases ; spadix-appendix cylindric, tapering basally. Inflorescence scentless. (similar to Arum korolkowii and Arum rupicola)
Vernacular
jiang nan xing

Native to:

Afghanistan, Iran, Nepal, Pakistan, Tadzhikistan, Tibet, Turkmenistan, Uzbekistan, West Himalaya, Xinjiang

Arum jacquemontii Blume appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Hewer, T. [H 1385], Afghanistan 49826.000

First published in Rumphia 1: 118 (1836)

Accepted by

  • Govaerts, R. & Frodin, D.G. (2002). World Checklist and Bibliography of Araceae (and Acoraceae): 1-560. The Board of Trustees of the Royal Botanic Gardens, Kew.
  • Govaerts, R. (1995). World Checklist of Seed Plants 1(1, 2): 1-483, 1-529. MIM, Deurne.
  • Sasikala, K., Vajravelu, E. & Daniel, P. (2019). Fascicles of Flora of India 29: 1-357. Botanical Survey of India, New Delhi.
  • Wu, Z. & Raven, P.H. (eds.) (2010). Flora of China 23: 1-515. Missouri Botanical Garden Press, St. Louis.

Literature

CATE Araceae

  • Boyce, P.C. 1993. The Genus Arum. 196 pp.
  • Hen(g) Li, Guang Hua Zhu, Boyce, P.C., Murata, J., Hetterscheid, W.L.A., Bogner, J. & Jacobsen, N. 2010. Araceae in Flora of China @ efloras.org.

Kew Backbone Distributions

  • Wu, Z. & Raven, P.H. (eds.) (2010). Flora of China 23: 1-515. Missouri Botanical Garden Press, St. Louis.

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

Kew Backbone Distributions
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

Kew Names and Taxonomic Backbone
The International Plant Names Index and World Checklist of Selected Plant Families 2021. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0

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