Poaceae
Stipa

Stipa barbata Desf.

First published in Fl. Atlant. 1: 97 (1798)
This species is accepted
The native range of this species is Medit. to W. Himalaya. It is a perennial and grows primarily in the temperate biome.

Descriptions

Morphology General Habit
Perennial; caespitose. Rootstock evident. Culms erect; 30-60 cm long. Ligule an eciliate membrane. Leaf-blades flexuous; filiform; conduplicate, or involute; 15-30 cm long; 1-2 mm wide. Leaf-blade surface scabrous; rough abaxially; puberulous; hairy adaxially.
Morphology Reproductive morphology Inflorescences
Inflorescence a panicle; embraced at base by subtending leaf. Panicle contracted; linear; 15-30 cm long. Spikelets solitary. Fertile spikelets pedicelled.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; subterete; 25-35 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus elongated; curved; 1.5 mm long; pubescent; pungent.
Fertile
Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets lanceolate; subterete; 25-35 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus elongated; curved; 1.5 mm long; pubescent; pungent.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes persistent; similar; exceeding apex of florets; thinner than fertile lemma; shiny. Lower glume linear, or lanceolate; 20-30 mm long; 0.7-0.8 length of upper glume; membranous; without keels; 5 -veined. Lower glume apex acuminate. Upper glume linear, or lanceolate; 25-35 mm long; membranous; without keels; 5 -veined. Upper glume apex attenuate.
Morphology Reproductive morphology Flowers Florets
Fertile lemma oblong; subterete; 10-12 mm long; coriaceous; without keel. Lemma surface pubescent. Lemma margins convolute; covering most of palea. Lemma apex surmounted by a ring of hairs; awned; 1 -awned. Principal lemma awn bigeniculate; 150-200 mm long overall; with twisted column; limb plumose; with 1-2 mm long hairs. Column of lemma awn 45-50 mm long; pubescent. Palea 2 -veined; without keels.
Morphology Reproductive morphology Flowers
Anthers 3. Stigmas 2. Ovary glabrous.
Morphology Reproductive morphology Fruits
Caryopsis with adherent pericarp. Hilum linear.
Distribution
Europe: southwestern and southeastern. Africa: north. Asia-temperate: Caucasus and western Asia.
Reference
Stipeae. Fl Iran 1993.
[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

  • 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

    • 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