Poaceae
Enneapogon

Enneapogon lophotrichus Chiov. ex H.Scholz & P.König

First published in Willdenowia 13: 369 (1983 publ. 1984)
This species is accepted
The native range of this species is NE. Tropical Africa to Kenya, Arabian Peninsula. It is an annual and grows primarily in the seasonally dry tropical biome.

Descriptions

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

Morphology General Habit
Annual up to 20 cm high; basal sheaths remaining intact
Morphology Reproductive morphology Inflorescences
Panicle loosely contracted, oblong
Morphology Reproductive morphology Inflorescences Spikelets
Glumes often flushed with pink, the lower 7- to 9-nerved, 3.5–5 mm long, the upper 5- to 7-nerved, 5–7 mm long; fertile lemma 6–7.5 mm long (including awns), hairy on the back in 3 dense patches, one along the midnerve and one along each margin; awns ciliate; anthers 0.3–0.5 mm long; third lemma well developed (but barren), 3.2–5.3 mm long, usually accompanied by a vestigial fourth lemma.
Distribution
N1, 3; C1; Djibouti, Ethiopia, Egypt, Arabia
Ecology
Altitude range 350–900 m.
[FSOM]

Morphology General Habit
Annual. Culms decumbent; 5-20 cm long. Leaf-sheaths pubescent; with capitate hairs. Ligule a fringe of hairs. Leaf-blades 2-5 cm long; 1-2 mm wide.
Morphology Reproductive morphology Inflorescences
Inflorescence a panicle. Panicle contracted; oblong; 1-4 cm long. Spikelets solitary. Fertile spikelets pedicelled.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 1 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 5-7 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus pubescent.
Fertile
Spikelets comprising 1 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 5-7 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus pubescent.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes persistent; similar; exceeding apex of florets; thinner than fertile lemma. Lower glume elliptic; 3.5-5 mm long; 0.7 length of upper glume; membranous; without keels; 7-9 -veined. Lower glume lateral veins ribbed. Lower glume apex acute. Upper glume elliptic; 5-7 mm long; 3 length of adjacent fertile lemma; membranous; without keels; 5-7 -veined. Upper glume lateral veins ribbed. Upper glume apex acute.
Morphology Reproductive morphology Flowers Florets
Fertile lemma oblong; 1.5-2.5 mm long; chartaceous; without keel; 9 -veined. Lemma surface pubescent; with a transverse row of hair tufts (at base); bearing 3 hair tufts in all; inner surface transversely fringed. Lemma apex dentate; 9 -fid; awned; 9 -awned. Principal lemma awn 4.5-6 mm long overall; limb ciliate; glabrescent towards tip. Lateral lemma awns arising on apex of lobes; subequal to principal; ciliate. Palea keels ciliolate. Palea surface pubescent; hairy on back and on flanks. Apical sterile florets 2-3 in number; dissimilar. First apical floret oblong; 0.5 mm long; glabrous; awned. Apical sterile florets barren; in a clump; rudimentary. Apical sterile lemmas awned; 9 -awned. Apical sterile lemma awns 3.5 mm long; ciliate.
Morphology Reproductive morphology Flowers
Lodicules 2. Anthers 3; 0.3-0.8(-1.2) mm long.
Morphology Reproductive morphology Fruits
Caryopsis with adherent pericarp.
Distribution
Africa: north and northeast tropical. Asia-temperate: Arabia.
Reference
Pappophoreae. TAC.
[GB]

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]

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

  • GrassBase - The Online World Grass Flora

    • Clayton, W.D., Vorontsova, M.S., Harman, K.T. and Williamson, H. (2006 onwards). GrassBase - The Online World Grass Flora.
    • http://creativecommons.org/licenses/by-nc-sa/3.0

  • Herbarium Catalogue Specimens

    • 'The Herbarium Catalogue, Royal Botanic Gardens, Kew. Published on the Internet http://www.kew.org/herbcat [accessed on Day Month Year]'. Please enter the date on which you consulted the system.
    • 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