Poaceae
Piptatherum

Piptatherum sogdianum (Grig.) Roshev.

First published in Bot. Mater. Gerb. Bot. Inst. Komarova Akad. Nauk S.S.S.R. 14: 116 (1951)
This species is accepted
The native range of this species is Central Asia. 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. Culms erect; 30-120 cm long. Ligule an eciliate membrane; 2-8 mm long. Leaf-blades flexuous; flat, or convolute; 1-4 mm wide.
Morphology Reproductive morphology Inflorescences
Inflorescence a panicle. Panicle contracted; linear; 10-17 cm long. Panicle branches scabrous. Spikelets solitary. Fertile spikelets pedicelled.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets elliptic, or ovate; dorsally compressed; 7-9 mm long; breaking up at maturity; disarticulating below each fertile floret.
Fertile
Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets elliptic, or ovate; dorsally compressed; 7-9 mm long; breaking up at maturity; disarticulating below each fertile floret.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes persistent; similar; exceeding apex of florets; thinner than fertile lemma. Lower glume elliptic; 1 length of upper glume; membranous; light green; without keels. Lower glume apex acuminate. Upper glume elliptic; 7-9 mm long; membranous; without keels. Upper glume apex acuminate.
Morphology Reproductive morphology Flowers Florets
Fertile lemma elliptic; dorsally compressed; 4.5-5.3 mm long; 0.8-1.4 mm wide; coriaceous; shiny; without keel. Lemma surface pubescent; hairy below. Lemma margins involute; exposing palea. Lemma apex awned; 1 -awned. Principal lemma awn 4-7 mm long overall. Palea coriaceous; 2 -veined; without keels.
Morphology Reproductive morphology Flowers
Anthers 3; anther tip smooth.
Morphology Reproductive morphology Fruits
Caryopsis with adherent pericarp.
Distribution
Asia-temperate: Soviet Middle Asia.
Reference
Stipeae. Zlaki 1997.
[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 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