Poaceae
Bromus

Bromus nottowayanus Fernald

First published in Rhodora 43: 530 (1941)
This species is accepted
The native range of this species is SE. Canada to Central & E. U.S.A. 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. Culms 70-120 cm long; 6-8 -noded. Leaf-sheaths longer than adjacent culm internode; pilose; with reflexed hairs. Leaf-sheath auricles absent. Ligule an eciliate membrane. Leaf-blades 10-20 cm long; 6-13 mm wide. Leaf-blade surface pilose; hairy adaxially, or on both sides.
Morphology Reproductive morphology Inflorescences
Inflorescence a panicle. Panicle open; ovate; 12-22 cm long. Primary panicle branches drooping. Panicle branches with insignificant pulvini. Spikelets solitary. Fertile spikelets pedicelled.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 6-10 fertile florets; with diminished florets at the apex. Spikelets lanceolate; laterally compressed; 15-25 mm long; breaking up at maturity; disarticulating below each fertile floret.
Fertile
Spikelets comprising 6-10 fertile florets; with diminished florets at the apex. Spikelets lanceolate; laterally compressed; 15-25 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; 5-7 mm long; 0.75 length of upper glume; membranous; without keels; 1-3 -veined. Lower glume lateral veins absent, or obscure. Lower glume surface pubescent. Lower glume apex acute. Upper glume lanceolate; 6-8 mm long; 0.66 length of adjacent fertile lemma; membranous; without keels; 5 -veined. Upper glume surface pubescent. Upper glume apex acute.
Morphology Reproductive morphology Flowers Florets
Fertile lemma oblong; 8-13 mm long; chartaceous; without keel; 5-7 -veined. Lemma surface pubescent; hairy all along. Lemma apex awned; 1 -awned. Principal lemma awn subapical; 5-8 mm long overall. Apical sterile florets resembling fertile though underdeveloped.
Morphology Reproductive morphology Flowers
Lodicules 2; membranous. Anthers 3. 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
North America: north-central USA, northeast USA, and southeast USA.
Reference
Bromeae. Man US Gr 1994.
[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

  • 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 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