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This genus is accepted, and its native range is Tropical Africa to Namibia.
A specimen from Kew's Herbarium

[FZ]

Amaranthaceae, C. C. Townsend. Flora Zambesiaca 9:1. 1988

Morphology General Habit
Annual or perennial herbs with opposite, petiolate or sessile, entire leaves, rootstock slender to tuberous.
Morphology Reproductive morphology Inflorescences
Inflorescence spicate to capitate, elongating later or not, flowers spreading or in one species becoming deflexed after flowering.
Morphology Reproductive morphology Flowers
Flowers solitary in the bracts, hermaphrodite.
Morphology Reproductive morphology Flowers Perianth
Perianth segments 5, feebly to strongly 1–3 (5)-nerved, lanceolate to narrowly oblong, usually hairy (rarely glabrous), more or less mucronate to aristate with the excurrent nerve. Perianth falling with the ripe seed, accompanied by the bracteoles or not; bracts persistent, spreading or rarely deflexed.
Morphology Reproductive morphology Inflorescences Bracteoles
Bracteoles 2, c. half the length of the perianth or more, the midrib excurrent in a short, glabrous and pungent or longer, flexuose and pilose arista, lamina firm, chartaceous or horny.
Morphology Reproductive morphology Flowers Androecium
Stamens 5, filaments filiform, monadelphous below, alternating with mostly quadrate pseudostaminodes, these glabrous to pilose, simple or with a highly developed, fimbriate dorsal scale; anthers bilocular.
Morphology Reproductive morphology Flowers Gynoecium Style
Style slender, stigma small, truncate-capitate.
Morphology Reproductive morphology Flowers Gynoecium Ovary
Ovary with a solitary pendulous ovule, fruiting wall very thin; apex at maturity firm, with a transverse crest passing through the base of the style, often forming a hump at each end where it meets the periphery, rarely without such a crest but with a circumferential rim, or almost flat.

[FTEA]

Amaranthaceae, C.C. Townsend. Flora of Tropical East Africa. 1985

Morphology General Habit
Annual or perennial herbs with opposite, petiolate or sessile, entire leaves; rootstock slender to tuberous
Morphology Reproductive morphology Inflorescences
Inflorescence spicate to capitate, elongating later or not, flowers spreading or in one species becoming deflexed after flowering
Morphology Reproductive morphology Flowers
Flowers solitary in the bracts, hermaphrodite
Morphology Reproductive morphology Inflorescences Bracteoles
Bracteoles 2, the midrib excurrent in a short, glabrous and pungent or longer, flexuose and pilose arista, lamina firm, chartaceous or horny, ± half the length of the perianth or more
Morphology Reproductive morphology Flowers Perianth
Perianth-segments 5, feebly to strongly 1–3(–5)-nerved, lanceolate to narrowly oblong, usually hairy (rarely glabrous), ± mucronate to aristate with the excurrent nerve Perianth falling with the ripe capsule, accompanied by the bracteoles or not; bracts persistent, spreading or rarely deflexed.
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 5; filaments filiform, monadelphous below, alternating with mostly quadrate pseudostaminodes, these glabrous to pilose, simple or with a highly developed, fimbriate dorsal scale; anthers bilocular
Morphology Reproductive morphology Flowers Gynoecium Pistil
Ovary with a solitary pendulous ovule, fruiting wall very thin; apex at maturity firm, with a transverse crest passing through the base of the style, often forming a hump at each end where it meets the periphery, rarely without such a crest but with a circumferential rim or almost flat; style slender; stigma small, truncate-capitate

[FSOM]

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

Morphology General Habit
Annual or perennial herbs with opposite, entire leaves, rootstock slender to tuberous
Morphology Reproductive morphology Inflorescences
Inflorescence spicate to capitate, elongating later or not, bracteate
Morphology Reproductive morphology Flowers
Flowers all fertile, solitary in the axils of the bracts, bibracteolate
Morphology Reproductive morphology Flowers Tepal
Tepals 5, feebly to strongly 1–3(–5)-nerved, rarely glabrous, ± mucronate to aristate with the excurrent midrib, all ± similar
Morphology Reproductive morphology Flowers Androecium Stamens
Stamens 5, the filaments alternating with mostly quadrate pseudostaminodes which are glabrous to pilose and with or without a fimbriate dorsal scale
Morphology Reproductive morphology Flowers Gynoecium Ovary
Ovary 1-ovulate, the apex with a transverse ridge or rarely a circumferential rim
Morphology Reproductive morphology Flowers Gynoecium Style
Style slender, stigma capitate
Morphology Reproductive morphology Fruits
Fruit an irregularly rupturing capsule with a firm apex.
Distribution
About 12 species, confined to tropical Africa.

Native to:

Angola, Benin, Burkina, Burundi, Cameroon, Central African Repu, Chad, Congo, Ethiopia, Gambia, Ghana, Guinea, Guinea-Bissau, Ivory Coast, Kenya, Malawi, Mali, Mauritania, Mozambique, Namibia, Niger, Nigeria, Rwanda, Senegal, Sierra Leone, Somalia, Sudan, Tanzania, Togo, Uganda, Zambia, Zaïre, Zimbabwe

Pandiaka Benth. & Hook.f. appears in other Kew resources:

First published in Gen. Pl. 3: 35 (1880)

Accepted by

  • Govaerts, R., Nic Lughadha, E., Black, N., Turner, R. & Paton, A. (2021). The World Checklist of Vascular Plants, a continuously updated resource for exploring global plant diversity. https://doi.org/10.1038/s41597-021-00997-6 Scientific Data 8: 215.

Literature

Flora of West Tropical Africa

  • Suessenguth & Overknott in Bot. Archiv. 41: 80 (1940).
  • —F.T.A. 6, 1: 67

Flora Zambesiaca

  • in Benth. & Hook. Gen. Pl. 3: 35 (1880).

Flora of Somalia

  • Flora Somalia, Vol 1, (1993) Author: by C. C. Townsend [updated by M. Thulin 2008]

Flora of Tropical East Africa

  • in G.P. 3: 35 (1880)

Flora Zambesiaca
Flora Zambesiaca
http://creativecommons.org/licenses/by-nc-sa/3.0

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

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