Poaceae
Panicum

Panicum sumatrense Roth

First published in J.J.Roemer & J.A.Schultes, Syst. Veg., ed. 15[bis]. 2: 434 (1817)
This species is accepted
The native range of this species is Tropical & Subtropical Asia. It is an annual and grows primarily in the seasonally dry tropical biome.

Descriptions

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: not threatened. Confidence: confident
[AERP]

Morphology General Habit
Annual. Culms erect; 30-100 cm long. Culm-nodes glabrous. Lateral branches sparse, or ample. Leaf-sheaths glabrous on surface. Ligule a ciliate membrane; 0.6-1.1 mm long. Collar glabrous. Leaf-blade base broadly rounded. Leaf-blades 10-40 cm long; 5-15 mm wide. Leaf-blade surface glabrous. Leaf-blade apex acuminate.
Morphology Reproductive morphology Inflorescences
Inflorescence a panicle. Panicle contracted; oblong; nodding; 5-40 cm long; 1-5 cm wide. Primary panicle branches appressed; 3-15 cm long. Panicle branches scabrous. Spikelets solitary. Fertile spikelets pedicelled.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; acute; 2.5-3.5 mm long; persistent on plant.
Fertile
Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic; dorsally compressed; acute; 2.5-3.5 mm long; persistent on plant.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes reaching apex of florets; thinner than fertile lemma. Lower glume ovate; 0.7-1.2 mm long; 0.25-0.33 length of spikelet; membranous; without keels; 1-3 -veined. Lower glume lateral veins absent, or obscure. Lower glume apex acute. Upper glume ovate; 1 length of spikelet; membranous; without keels; 11-15 -veined. Upper glume apex acute.
Morphology Reproductive morphology Flowers Florets
Basal sterile florets barren; with palea. Lemma of lower sterile floret similar to upper glume; ovate; 1 length of spikelet; membranous; 9-13 -veined; acute. Palea of lower sterile floret 0.9 length of lemma. Fertile lemma elliptic; dorsally compressed; 2.2-2.5 mm long; indurate; dark brown; shiny; without keel. Lemma margins involute. Lemma apex acute. Palea involute; indurate.
Morphology Reproductive morphology Flowers
Anthers 3; 1.5 mm long.
Morphology Reproductive morphology Fruits
Caryopsis with adherent pericarp; 1.8-1.9 mm long.
Distribution
Asia-temperate: Caucasus, China, and eastern Asia. Asia-tropical: India, Indo-China, and Malesia.
Reference
Paniceae. Fl Ceyl 1993.
[GB]

IUCN Red List of Threatened Species https://www.iucnredlist.org/species/177132/7374576

Conservation
LC - least concern
[IUCN]

Common Names

English
Sama

Sources

  • Angiosperm Extinction Risk Predictions v1

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

  • GrassBase - The Online World Grass Flora

    • Clayton, W.D., Vorontsova, M.S., Harman, K.T. and Williamson, H. (2006 onwards). GrassBase - The Online World Grass Flora.
    • http://creativecommons.org/licenses/by-nc-sa/3.0

  • Herbarium Catalogue Specimens

    • 'The Herbarium Catalogue, Royal Botanic Gardens, Kew. Published on the Internet http://www.kew.org/herbcat [accessed on Day Month Year]'. Please enter the date on which you consulted the system.
    • Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/

  • IUCN Categories

    • IUCN Red List of Threatened Species
    • 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 Living Collection Database

    • Common Names from Plants and People Africa http://www.plantsandpeopleafrica.com/

  • 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