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This species is accepted, and its native range is Nigeria to W. Tanzania and Angola.
A specimen from Kew's Herbarium

[FTEA]

Lamiaceae (Labiatae), A.J. Paton, G. Bramley, O. Ryding, R.M. Polhill, Y.B. Harvey, M. Iwarsson, F. Willis, P.B. Phillipson, K. Balkwill, C.W. Lukhoba, D.F. Otieno, & R.M. Harley. Flora of Tropical East Africa. 2009

Type
Type: Angola, Cuanza Norte, Pungo Andongo, near Cazella, Welwitsch 5555 (K!, lecto.; BM!, isolecto.) (Lectotypification follows Ashby 1935)
Morphology General Habit
Aromatic perennial herb, 20–50 cm tall
Morphology Stem
Stems often annual arising from a woody rootstock, rounded-quadrangular or quadrangular, erect, woody at base; indumentum of patent short glandular and long eglandular hairs
Morphology Leaves
Leaves petiolate, often ascending, ovate to elliptic, 2–4 × 1–1.5 cm, serrate, apex obtuse, base cuneate to attenuate, with short spreading hairs, sometimes sericeous beneath, or rarely subglabrous; petiole 1–4 mm long
Morphology Reproductive morphology Inflorescences
Inflorescence lax, verticils 15–25 mm apart; bracts white or pink, forming a conspicuous apical coma, round to elliptic, 6–13 × 4–13 mm, with short spreading hairs; pedicels 3–4 mm long, spreading or ascending, slightly flattened
Morphology Reproductive morphology Flowers Calyx
Calyx purplish, horizontal, upward or downward-pointing, 6 mm long at anthesis, pubescent with sessile glands; fruiting calyx 10–11 mm long
Morphology Reproductive morphology Flowers Corolla
Corolla white, 11–15 mm long, puberulent with sessile glands, anterior lip horizontal or deflexed; tube 10 mm long, slightly curved, dilating at throat
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens exserted 4 mm, anterior glabrous, posterior ciliate mainly at base
Morphology Reproductive morphology Flowers Disc
Disk equally 4-lobed
Morphology Reproductive morphology Fruits
Nutlets brown, 3–4 × 2–3 mm, smooth with a slight dorsal ridge, producing a small amount of mucilage when wet.
Ecology
Grassland prone to burning, woodland edges; 900–1200 m
Conservation
Least concern; widely distributed
Distribution
Range: Nigeria, Cameroon, Central African Republic, Congo-Kinshasa, Angola, Zambia, Zimbabwe Flora districts: T4

[FWTA]

Labiatae, J. K. Morton. Flora of West Tropical Africa 2. 1963

Morphology General Habit
A bushy, aromatic perennial, up to 2 ft. high
Morphology Reproductive morphology Flowers
White flowers
Morphology Reproductive morphology Inflorescences Bracts
Terminal clusters of pink bracts
Ecology
Growing in clumps in dry stony grassland.

Native to:

Angola, Cameroon, Central African Repu, Chad, Nigeria, Tanzania, Zambia, Zaïre

Syncolostemon welwitschii (Rolfe) D.F.Otieno appears in other Kew resources:

Date Reference Identified As Barcode Type Status
May 11, 2004 unknown [5555], Angola K000194591 Unknown type material
May 11, 2004 Marques, S. [7], Angola K000194592 Unknown type material
Henriques, C. [1135], Angola K001008865
Barbosa [11303], Angola K001008872
Baum, H. [186], Angola K001008874
Henriques, C. [238], Angola K001008858
Gossweiler, J. [9720], Angola K001008866
Milne-Redhead, E. [4044], Angola K001008873
Bamps, P. [4293], Angola K001008868
Faulkner, H.G. [A.258], Angola K001008871
unknown [5519], Angola K000194589 Unknown type material
Henriques, C. [111], Angola K001008860
Gossweiler, J. [1030], Angola K001008870
Gossweiler, J. [2490], Angola K001008863
Henriques, C. [340], Angola K001008859
da Silva, M. [3369], Angola K001008867
Dawe, M.T. [316], Angola K001008857
Gossweiler, J. [1027], Angola K001008869
de Menezes, A. [359], Angola K001008861
Henriques, C. [733], Angola K001008862
Faulkner, H.G. [A.258], Angola K001008864
Sep 1, 2000 Cheek, M. [10013], Cameroon Hemizygia welwitschii K000106855
Jan 1, 1960 Maitland, T.D. [1599 a], Cameroon Hemizygia welwitschii K000029947
Jan 1, 1960 Maitland, T.D. [1599 a], Cameroon Hemizygia welwitschii K000029948
Jan 1, 1958 Morton, J.K. [K 190], Cameroon Hemizygia welwitschii K000029950
Brunt, M.A. [264], Cameroon Hemizygia welwitschii K000029946
Ujor, E.U. [FHI 30085], Cameroon Hemizygia welwitschii K000029949
Brunt, M.A. [426], Cameroon Hemizygia welwitschii K000029945

First published in Pl. Syst. Evol. 261: 37 (2006)

Accepted by

  • Brundu, G. & Camarda, I. (2013). The Flora of Chad: a checklist and brief analysis PhytoKeys 23: 1-18.
  • Figueiredo, E. & Smith, G.F. (2008). Plants of Angola Strelitzia 22: 1-279. National Botanical Institute, Pretoria.
  • Paton, A.J., Bramley, G., Ryding, O., Polhill, R., Harvey, Y., Iwarsson, M., Willis, F., Phillipson, P., Balkwill, K., Lukhoba, C., Otiend, D & Harley (2009). Lamiaceae (Labiatae) Flora of Tropical East Africa: 1-430.
  • Paton, A.J., Bramley, G., Ryding, O., Polhill, R.M., Harvey, Y.B., Iwarsson, M., Otieno, D., Balkwill, K., Phillipson, P.B., Harley, R.M. & Willis, F. (2013). Flora Zambesiaca 8(8): 1-346. Royal Botanic Gardens, Kew.

Literature

Kew Backbone Distributions

  • Brundu, G. & Camarda, I. (2013). The Flora of Chad: a checklist and brief analysis PhytoKeys 23: 1-18.
  • Paton, A.J., Bramley, G., Ryding, O., Polhill, R., Harvey, Y., Iwarsson, M., Willis, F., Phillipson, P., Balkwill, K., Lukhoba, C., Otiend, D & Harley (2009). Lamiaceae (Labiatae) Flora of Tropical East Africa: 1-430.

Flora of Tropical East Africa

  • Otieno et al. in Pl. Syst. Ecol. 261: 37 (2006).

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 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