Celtica gigantea (Link) F.M.Vázquez & Barkworth

First published in Bot. J. Linn. Soc. 144: 491 (2004)
This species is accepted
The native range of this species is Iberian Peninsula, Morocco. It is a perennial and grows primarily in the temperate 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]

Morphology General Habit
Perennial; caespitose; clumped densely. Butt sheaths herbaceous; distinctly ribbed; glabrous. Culms erect; 150-250 cm long; 3-6 mm diam. Culm-internodes smooth; distally glabrous. Leaves mostly basal. Leaf-sheaths wider than blade at the collar. Leaf-sheath oral hairs pubescent. Leaf-sheath auricles erect. Ligule an eciliate membrane; 0.5-1 mm long; membranous; truncate. Leaf-blades filiform; involute; 35-75 cm long; 0.9-1.5 mm wide. Leaf-blade surface smooth, or scaberulous; glabrous, or pubescent; hairy adaxially.
Morphology Reproductive morphology Inflorescences
Inflorescence a panicle. Panicle open; elliptic, or ovate; loose, or effuse; (20-)30-50 cm long. Primary panicle branches naked below. Panicle branches flat; smooth. Spikelets solitary. Fertile spikelets pedicelled.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; dorsally compressed; 22-30 mm long; breaking up at maturity; disarticulating below each fertile floret. Spikelet callus square. Floret callus elongated; straight to curved; 2-2.5 mm long; pilose.
Fertile
Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; dorsally compressed; 22-30 mm long; breaking up at maturity; disarticulating below each fertile floret. Spikelet callus square. Floret callus elongated; straight to curved; 2-2.5 mm long; pilose.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes similar; exceeding apex of florets. Lower glume lanceolate; 22-30 mm long; 1 length of upper glume; membranous; much thinner on margins; without keels; 3 -veined (very prominently). Upper glume lanceolate; 22-30 mm long; 0.7-0.8 length of adjacent fertile lemma; membranous; with hyaline margins; without keels; 3 -veined (very prominently). Upper glume apex acuminate, or caudate; mucronate.
Morphology Reproductive morphology Flowers Florets
Fertile lemma linear to lanceolate; subterete; 14-18 mm long; membranous; without keel; 5 -veined. Lemma surface villous. Lemma margins convolute. Lemma apex lobed; 2 -fid; with oblong lobes; incised 0.2-0.3 of lemma length; awned; 1 -awned. Principal lemma awn straight; 70-120 mm long overall; with 22-30 mm long limb; with twisted column; limb scabrous. Palea lanceolate; tightly convolute around flower; 1 length of lemma; 2 -veined; without keels. Palea surface villous; hairy on back. Palea apex acuminate.
Morphology Reproductive morphology Flowers
Lodicules 3. Anthers 3; linear; 12-14 mm long. Stigmas 2; plumose.
Distribution
Europe: southwestern. Africa: north.
Reference
Stipeae. TB.
[GB]

Sources

  • Angiosperm Extinction Risk Predictions v1

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