Poaceae
Bromus

Bromus pannonicus Kumm. & Sendtn.

First published in Flora 32: 757 (1849)
This species is accepted
The native range of this species is Slovakia to Romania. It is a perennial and grows primarily in the temperate biome.

Descriptions

Morphology General Habit
Perennial; culms solitary, or caespitose; clumped loosely. Rhizomes elongated. Butt sheaths persistent and investing base of culm; with compacted dead sheaths, or fibrous dead sheaths. Culms erect; 30-70(-130) cm long. Leaf-sheaths pilose. Ligule an eciliate membrane. Leaf-blades flat; 2-3 mm wide.
Morphology Reproductive morphology Inflorescences
Inflorescence a panicle. Panicle open; lanceolate, or oblong; 8-12 cm long. Primary panicle branches appressed; 3-5 -nate; bearing 1 fertile spikelets on each lower branch. Spikelets solitary. Fertile spikelets pedicelled.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 5-7 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 14-20 mm long; breaking up at maturity; disarticulating below each fertile floret.
Fertile
Spikelets comprising 5-7 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 14-20 mm long; breaking up at maturity; disarticulating below each fertile floret.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes persistent; shorter than spikelet. Lower glume lanceolate; 6-7 mm long; 1 length of upper glume; membranous; without keels; 1 -veined. Lower glume lateral veins absent. Lower glume apex acute. Upper glume lanceolate; 6-7 mm long; 0.66 length of adjacent fertile lemma; membranous; without keels; 3 -veined. Upper glume apex acute.
Morphology Reproductive morphology Flowers Florets
Fertile lemma oblong; 9 mm long; chartaceous; without keel; 7 -veined. Lemma surface scabrous; rough on veins. Lemma apex awned; 1 -awned. Principal lemma awn subapical; 7-8 mm long overall. Apical sterile florets resembling fertile though underdeveloped.
Morphology Reproductive morphology Flowers
Lodicules 2; membranous. Anthers 3; 3-4 mm long. Ovary with a fleshy appendage above style insertion; pubescent on apex.
Morphology Reproductive morphology Fruits
Caryopsis with adherent pericarp; hairy at apex; apex fleshy. Hilum linear.
Distribution
Europe: central and southeastern.
Reference
Bromeae. Fl Eur 1995.
[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

  • Kew Backbone Distributions

    • The International Plant Names Index and World Checklist of Vascular Plants 2026. 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 2026. 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