Blumea axillaris (Lam.) DC.

First published in Prodr. 5: 434 (1836)
This species is accepted
The native range of this species is Tropical & Subtropical Old World. It is an annual or 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: not threatened. Confidence: confident
[AERP]

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

Morphology General Habit
Annual or occasionally perennial herb, 20–90 cm high, the base sometimes woody and with one or more shoots, simple or branched; stems short-pubescent with glandular hairs; whole plant viscid, sticky and aromatic (smell variously described as lemony or like Hyptis or Tanacetum).
Morphology Leaves
Leaves occasionally purplish, the petiole absent but especially the proximal leaves with a long-attenuate base resembling a petiole up to 5 cm long, blade elliptic, oblanceolate or obovate, 2–10(–20 in proximal leaves) cm long, 0.6–6 cm wide, base cuneate to long-attenuate, margins dentate to serrate-dentate, apex acute or rounded and apiculate, densely to sparsely pubescent and glandular on both surfaces.
Morphology Reproductive morphology Inflorescences Capitulum
Capitula 4–8 mm long, in dense terminal and axillary, rather narrow panicles; stalks of individual capitula 2–8 mm long; phyllaries reddish brown or purplish, lanceolate, 2.5–7 mm long, long-pubescent with shorter glandular hairs intermixed; receptacle flat.
Morphology Reproductive morphology Flowers Florets
Florets pink, mauve or purple (white near sea-level); outer florets in several series, tube filiform, 3–4 mm long, minutely dentate at the apex, style purple or white, 4.5 mm long, with glabrous linear arms; inner florets fewer, tube slightly widening from the base, 2.5–4 mm long, lobes0.3–0.4 mm long, slightly glandular; anthers 1.2–1.4 mm long, long-tailed, with a short apical appendage; style 2.7–5 mm long, with ± 1 mm long hairy branches.
Morphology Reproductive morphology Fruits
Achenes cylindrical, 0.6–1 mm long, slightly ribbed, pubescent; pappus of ± 12 white bristles 3.5–5 mm long.
Figures
Fig. 60 (page 321).
Habitat
In swampy sites with impeded drainage, on river-banks, in seasonally flooded grassland, in old cultivations, on roadsides; often gregarious; 1–2000(–2400) m
Distribution
K3 K4 K5 K6 K7 P T1 T2 T3 T4 T5 T6 T7 T8 tropical Africa from Senegal to Ethiopia in the North, Angola to Mozambique in the South, South Africaalso in Indian Ocean Is. and (sub-)tropical Asia and Australia
[FTEA]

M. Thulin et al. Flora of Somalia, Vol. 1-4 [updated 2008] https://plants.jstor.org/collection/FLOS

Morphology General Habit
Annual or occasionally perennial herb, 20–90 cm high; whole plant viscid, sticky and aromatic
Morphology Leaves
Leaves occasionally purplish, the petiole absent but especially the proximal leaves with a long-attenuate base resembling a petiole up to 5 cm long, blade elliptic, oblanceolate or obovate, 2–10´0.6–6 cm, base cuneate to long-attenuate, margins dentate to serrate-dentate, apex acute or rounded and apiculate, densely to sparsely pubescent and glandular on both surfaces
Morphology Reproductive morphology Inflorescences
Capitula in dense terminal and axillary rather narrow panicles; phyllaries reddish brown or purplish, lanceolate, 2.5–7 mm long
Morphology Reproductive morphology Flowers Florets
Florets pink, mauve or purple; outer florets in several series, filiform; inner florets fewer, tube slightly widened from the base, 2.5–4 mm long, lobes 0.3–0.4 mm long
Morphology Reproductive morphology Fruits
Achenes cylindrical, 0.6–1 mm long, slightly ribbed, pubescent; pappus of ±12 white bristles 3.5–5 mm long.
Distribution
N2 tropical Africa and Asia.
Ecology
Altitude range c. 1350 m.
Note
First record for Somalia.
[FSOM]

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

Morphology Reproductive morphology Flowers Florets
Florets pale pink to reddish-purple in numerous clustered flower-heads.
Morphology General Habit
An erect, densely velvety aromatic herb up to 4 ft. high
[FWTA]

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

Morphology General Habit
A slender weed up to 3 ft. high
Morphology Reproductive morphology Inflorescences
Many small capitula in terminal inflorescences
Morphology Leaves
Basal and lower stem-leaves long-stalked
Morphology Reproductive morphology Flowers Florets
Florets mauve or pale purple
Ecology
In low-lying ground.
[FWTA]

Sources

  • Angiosperm Extinction Risk Predictions v1

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

    • Flora of Somalia
    • http://creativecommons.org/licenses/by-nc-sa/3.0
  • 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