Asteraceae
Vicoa

Vicoa indica (L.) DC.

First published in R.Wight, Contr. Bot. India: 10 (1834)
This species is accepted
The native range of this species is Tropical & Subtropical Old World. It is an annual and grows primarily in the subtropical 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]

Compositae, C. D. Adams. Flora of West Tropical Africa 2. 1963

Morphology General Habit
An erect annual herb 1-4 ft. high
Morphology Leaves
Leaves dark green above, paler beneath
Morphology Reproductive morphology Flowers Florets
Florets yellow
Ecology
A weed of cultivated ground and open places mostly outside the high-forest areas.
[FWTA]

Compositae, H. Beentje, C. Jeffrey & D.J.N. Hind. Flora of Tropical East Africa. 2005

Morphology General Habit
Annual herb, 0.2–1.5 m high; stems simple proximally, branching distally, sparsely puberulous.
Morphology Leaves
Leaves alternate or subopposite, membranous, sessile, narrowly lanceolate or oblong, 1.5–10 cm long, 0.2–2 cm wide, base auriculate and semi-amplexicaul, margins serrate-crenate or almost entire, apex acute, scabridulous above, densely scabridulous and glandular beneath.
Morphology Reproductive morphology Inflorescences Capitulum
Capitula 5–8 mm long, homogamous, in terminal lax leafy panicles; stalks of individual capitula slender, short, but seemingly up to 4 cm long, widened, glandular, and with several bracts/phyllaries just below the capitulum; phyllaries pale with a green midrib, linear, 2–5 mm long, acute, glandular, the outermost pilose proximally, becoming reflexed after achenes are dispersed; receptacle slightly honeycombed.
Morphology Reproductive morphology Flowers Florets
Florets orange-yellow, many, in Asian material with radiate female flowers but in ours all tubular with some of the outer 4-lobed (see note), tube cylindric, 2.8–3.5 mm long, lobes 0.2–0.3 mm long, glandular, anthers 1.4–1.5 mm long, style 3–3.8 mm long.
Morphology Reproductive morphology Fruits
Achenes narrowly ellipsoid, 1–1.2 mm long, pubescent; pappus 2–3.5 mm long.
Figures
Fig. 65.
Habitat
A pioneer in drying swampy sites, also a crop weed; 400–1100 m
Distribution
T4 T6 U3 from Senegal to Ethiopia and south to the ZambesiPakistan, India, Sri Lanka, Burma
[FTEA]

Sources

  • Angiosperm Extinction Risk Predictions v1

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

  • Flora of Tropical East Africa

    • Flora of Tropical East Africa
    • http://creativecommons.org/licenses/by-nc-sa/3.0

  • Flora of West Tropical Africa

    • Flora of West Tropical Africa
    • 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

  • Kew Science Photographs

    • Copyright applied to individual images