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This species is accepted, and its native range is Tanzania.

[FTEA]

Gramineae, W. D. Clayton, S. M. Phillips & S. A. Renvoize. Flora of Tropical East Africa. 1974

Morphology General Habit
Base unknown; culms 80 cm. high.
Morphology Leaves
Leaf-blades 10–20 cm. long, 4–5 mm. wide, folded; ligule a line of hairs.
Morphology Reproductive morphology Inflorescences
Inflorescence oblong to linear, 5–8 cm. long, the spikelets borne singly or in pairs in 2–4 rows on appressed racemes 1–3.5 cm. long.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets ovate-elliptic, 4–4.5 mm. long, scaberulous to spinulose, the basal callus produced into a plumply cylindrical stipe 1 mm. long; lower floret ♂, acute; upper lemma 4–4.5 mm. long, acute, its palea acute and lightly reflexed.
Habitat
Swampy places; 1300 m.
Distribution
T4 not known elsewhere

[GB]
Morphology General Habit
Culms 80 cm long. Ligule a fringe of hairs. Leaf-blades conduplicate; 10-20 cm long; 4-5 mm wide.
Morphology Reproductive morphology Inflorescences
Inflorescence composed of racemes. Racemes borne along a central axis; appressed; unilateral; 1-3.5 cm long; simple. Central inflorescence axis 5-8 cm long. Rhachis angular. Spikelet packing 2-4 -rowed. Spikelets solitary, or in pairs. Fertile spikelets sessile.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic, or ovate; dorsally compressed; gibbous; cuspidate; 5-5.5 mm long; falling entire. Spikelet callus oblong; incorporating lowest rhachilla internode with adnate lower glume; 1 mm long.
Fertile
Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets elliptic, or ovate; dorsally compressed; gibbous; cuspidate; 5-5.5 mm long; falling entire. Spikelet callus oblong; incorporating lowest rhachilla internode with adnate lower glume; 1 mm long.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes dissimilar; reaching apex of florets; thinner than fertile lemma. Lower glume ovate; 0.25 length of spikelet; membranous; without keels; 3-5 -veined. Lower glume surface scabrous, or spinose. Lower glume apex cuspidate. Upper glume ovate; membranous; without keels; 5 -veined. Upper glume surface scabrous, or spinose. Upper glume apex cuspidate.
Morphology Reproductive morphology Flowers Florets
Basal sterile florets male; with palea. Lemma of lower sterile floret similar to upper glume; ovate; 1 length of spikelet; membranous; 5 -veined; sulcate; scabrous; acute. Fertile lemma ovate; gibbous; 4-4.5 mm long; indurate; much thinner above; shiny; without keel; 5 -veined. Lemma margins involute. Lemma apex acute; laterally pinched. Palea reflexed at apex; indurate. Palea apex acute.
Morphology Reproductive morphology Flowers
Anthers 3.
Distribution
Africa: east tropical.
Reference
Paniceae. FTEA.

Native to:

Tanzania

Echinochloa pithopus Clayton appears in other Kew resources:

Date Reference Identified As Barcode Type Status
Bidgood, S. [5934], Tanzania K000468491

First published in Kew Bull. 36: 234 (1981)

Accepted by

  • Clayton, W.D. & Renvoize, S.A. (1982). Gramineae Flora of Tropical East Africa 3: 451-898.
  • Clayton, W.D., Harman, K.T. & Williamson, H. (2006). World Grass Species - Synonymy database The Board of Trustees of the Royal Botanic Gardens, Kew.

Literature

Kew Backbone Distributions

  • Clayton, W.D. & Renvoize, S.A. (1982). Gramineae Flora of Tropical East Africa 3: 451-898.

Flora of Tropical East Africa

  • W.D. Clayton in Kew Bulletin 34: 500 (1980).

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

GrassBase - The Online World Grass Flora
http://creativecommons.org/licenses/by-nc-sa/3.0

Herbarium Catalogue Specimens

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