Poaceae
Bromus

Bromus plurinodis Keng f.

First published in Fl. Tsinling. 1(1): 439 (1976)
This species is accepted
The native range of this species is China. 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 loosely. Culms erect; 40-120 cm long. Culm-internodes smooth; distally glabrous. Leaf-sheaths antrorsely scabrous; pilose. Leaf-sheath auricles falcate. Ligule an eciliate membrane; 2-5 mm long. Leaf-blades 2-5 mm wide. Leaf-blade surface scaberulous; rough on both sides; pubescent; sparsely hairy; hairy adaxially.
Morphology Reproductive morphology Inflorescences
Inflorescence a panicle. Panicle open; ovate; effuse; 15-30 cm long. Primary panicle branches bearing 1 fertile spikelets on each lower branch. Panicle branches capillary; scabrous. Spikelets solitary. Fertile spikelets pedicelled.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 3-6 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 9-15 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes pubescent.
Fertile
Spikelets comprising 3-6 fertile florets; with diminished florets at the apex. Spikelets oblong; laterally compressed; 9-15 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes pubescent.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes persistent; similar; shorter than spikelet. Lower glume lanceolate; 3.5-6.5 mm long; 0.5-0.66 length of upper glume; chartaceous; without keels; 1 -veined. Lower glume lateral veins absent. Lower glume surface asperulous; rough on veins. Lower glume apex acuminate. Upper glume lanceolate; 7-10 mm long; 1 length of adjacent fertile lemma; chartaceous; without keels; 3 -veined. Upper glume surface asperulous; rough on veins. Upper glume apex acuminate.
Morphology Reproductive morphology Flowers Florets
Fertile lemma lanceolate; 7-10 mm long; herbaceous; much thinner on margins; keeled; 3 -veined. Lemma surface scabrous; rough on veins; puberulous; hairy at base. Lemma apex awned; 1 -awned. Principal lemma awn apical; straight, or curved; 10-15 mm long overall. Palea 1 length of lemma. Palea keels scabrous; eciliate. Apical sterile florets resembling fertile though underdeveloped.
Morphology Reproductive morphology Flowers
Lodicules 2; membranous. Anthers 3; 2.2-3.2 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
Asia-temperate: China.
Reference
Bromeae. Pl Cent Asia 1996.
[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 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