Brachypodium pringlei Scribn. ex Beal

First published in Grass. N. Amer. 2: 627 (1896)
This species is accepted
The native range of this species is NE. Mexico. It is a perennial and grows primarily in the seasonally dry tropical 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: threatened. Confidence: low confidence
[AERP]

Morphology General Habit
Perennial; culms solitary. Culms geniculately ascending; 25-60 cm long; wiry. Leaf-sheaths glabrous on surface. Ligule an eciliate membrane; 0.5 mm long; erose. Leaf-blades 7-15 cm long; 3-6 mm wide; flaccid.
Morphology Reproductive morphology Inflorescences
Inflorescence composed of racemes. Racemes 1; single; bilateral; 2-4 cm long; bearing few fertile spikelets; bearing 1-4 fertile spikelets on each. Rhachis glabrous on surface. Spikelet packing broadside to rhachis; contiguous. Spikelets appressed, or ascending; solitary. Fertile spikelets sessile.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 6-8 fertile florets; with diminished florets at the apex. Spikelets linear; laterally compressed; 19-23 mm long; breaking up at maturity; disarticulating below each fertile floret.
Fertile
Spikelets comprising 6-8 fertile florets; with diminished florets at the apex. Spikelets linear; laterally compressed; 19-23 mm long; breaking up at maturity; disarticulating below each fertile floret.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes persistent; similar; shorter than spikelet. Lower glume oblong; 4 mm long; 0.66 length of upper glume; membranous; without keels; 5 -veined. Lower glume lateral veins prominent. Lower glume apex obtuse. Upper glume oblong; 6 mm long; 0.9 length of adjacent fertile lemma; membranous; without keels; 5 -veined. Upper glume lateral veins prominent. Upper glume apex obtuse.
Morphology Reproductive morphology Flowers Florets
Fertile lemma oblong; 7 mm long; chartaceous; without keel; 5 -veined. Lemma lateral veins prominent. Lemma surface smooth. Lemma apex obtuse; muticous. Apical sterile florets resembling fertile though underdeveloped.
Morphology Reproductive morphology Flowers
Anthers 3.
Morphology Reproductive morphology Fruits
Caryopsis with adherent pericarp.
Distribution
North America: Mexico.
Reference
Brachypodieae. WDC 2001.
[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 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