Lamiaceae
Coleus

Coleus plantagineus (Hook.f.) A.J.Paton

First published in PhytoKeys 129: 84 (2019)
This species is accepted
The native range of this species is SW. India. It is a subshrub 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: threatened. Confidence: confident
[AERP]

Suddee, S. & Paton, A. 2009. A revision of Anisochilus Wall. ex Benth. (Lamiaceae). Kew Bulletin 64: 235. DOI: https://doi.org/10.1007/s12225-009-9115-5

Type
India, Deccan Peninsula, Mysore, Bababoodan Hills, Dalzell s.n. (K!, lectotype chosen here; isolectotype K!).
Morphology General Habit
Erect or ascending dwarf undershrub, up to 25 cm tall
Morphology Stem
Stems round-quadrangular or quadrangular, glabrescent to rusty pubescent, rootstock thick
Morphology Leaves
Leaves sessile or subsessile, opposite decussate, congested at the base of peduncle, oblong-obovate or obovate, 8 – 25 × 5 – 12 mm, apex obtuse or rounded, base cuneate or attenuate, margin entire or obscurely crenate, chartaceous, scabrid above, pubescent with hairs denser on veins beneath, red or golden sessile glands present on both sides, lateral veins 3 – 5, prominently raised beneath
Morphology Reproductive morphology Inflorescences
Inflorescence terminal, simple; spike-like head narrow cylindric, up to 80 mm long and 8 mm wide; peduncles slender, up to 70 mm long, rusty pubescent; bracts ovate-caudate, pubescent
Morphology Reproductive morphology Flowers Calyx
Calyx ovoid, c. 1 mm long at anthesis, densely villous; fruiting calyx 1.5 – 2 mm long; posterior lip shortly oblong, truncate or obscurely 3-toothed at apex, slightly deflexed after anthesis but not concealing throat, pubescent; anterior lip truncate or obscurely 2-lobed, membranous and adpressed on tube; tube ventrally saccate around the middle, slightly constricted at throat, villous
Morphology Reproductive morphology Flowers Corolla
Corolla 5 – 6 mm long, pubescent, with or without red sessile glands, colour unknown
Morphology Reproductive morphology Fruits
Nutlets light brown, ovoid, c. 0.6 × 0.5 mm
Distribution
India (Deccan Peninsula).
Ecology
Unknown.
Conservation
Known only from one locality, although more recent collections may exist in regional herbaria. The species can be considered vulnerable under VU D2 and a more threatened assessment may be possible, but further data gathering is necessary.
[KBu]

Sources

  • Angiosperm Extinction Risk Predictions v1

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

  • 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/

  • 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 Bulletin

    • Kew Bulletin
    • http://creativecommons.org/licenses/by-nc-sa/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