- Family:
- Poaceae Barnhart
- Genus:
- Deschampsia P.Beauv.
Deschampsia chrysantha (J.Presl) Saarela
[GB]
- Morphology General Habit
- Perennial. Rhizomes short. Culms erect; 17-50 cm long. Culm-internodes smooth. Leaf-sheaths glabrous on surface. Ligule an eciliate membrane; 7-18 mm long; acuminate. Leaf-blades involute; 5-15 cm long; 2-3 mm wide; stiff. Leaf-blade surface scabrous. Leaf-blade apex pungent.
- Morphology Reproductive morphology Inflorescences
- Inflorescence a panicle. Panicle spiciform; oblong; 2.5-6 cm long; 1.3-2 cm wide. Spikelets solitary. Fertile spikelets pedicelled. Pedicels glabrous.
- Morphology Reproductive morphology Inflorescences Spikelets
- Spikelets comprising 1 fertile florets; with a barren rhachilla extension. Spikelets lanceolate; laterally compressed; 5-7.5 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes elongated below proximal fertile floret. Floret callus bearded. Floret callus hairs 1 length of lemma.
- Fertile
- Spikelets comprising 1 fertile florets; with a barren rhachilla extension. Spikelets lanceolate; laterally compressed; 5-7.5 mm long; breaking up at maturity; disarticulating below each fertile floret. Rhachilla internodes elongated below proximal fertile floret. Floret callus bearded. Floret callus hairs 1 length of lemma.
- Morphology Reproductive morphology Inflorescences Bracts Glume
- Glumes persistent; similar; exceeding apex of florets; firmer than fertile lemma. Lower glume lanceolate; 1 length of upper glume; membranous; 1-keeled; 1 -veined. Lower glume lateral veins absent. Lower glume apex entire, or dentate; 2 -fid; acute. Upper glume lanceolate; 5-7.5 mm long; 1.3-1.7 length of adjacent fertile lemma; membranous; 1-keeled; 3 -veined. Upper glume apex entire, or dentate; 2 -fid; acute.
- Morphology Reproductive morphology Flowers Florets
- Fertile lemma lanceolate; 3.8-4.5 mm long; membranous; without keel. Lemma apex dentate; 2 -fid; awned; 1 -awned. Principal lemma awn dorsal; arising 0.2-0.25 way up back of lemma; straight; 2-3 mm long overall. Rhachilla extension 0.6-1.2 mm long; pilose; hairy in the middle; with 2-3.5 mm long hairs.
- Morphology Reproductive morphology Flowers
- Lodicules 2. Anthers 3; 2 mm long. Stigmas 2.
- Morphology Reproductive morphology Fruits
- Caryopsis with adherent pericarp. Hilum punctiform. Disseminule comprising a floret.
- Distribution
- South America: western South America and southern South America.
- Reference
- Aveneae. Tovar 1995.
Native to:
Argentina Northwest, Bolivia, Chile Central, Chile North, Peru
- Calamagrostis chrysantha (J.Presl) Steud.
- Calamagrostis chrysantha var. phalaroides (Wedd.) Soreng
- Calamagrostis mutica Steud.
- Calamagrostis nitida Hack.
- Deschampsia chrysantha var. phalaroides (Wedd.) Saarela
- Deyeuxia chrysantha J.Presl
- Deyeuxia chrysantha var. phalaroides (Wedd.) Villav.
- Deyeuxia leiopoda Wedd.
- Deyeuxia phalaroides Wedd.
- Stylagrostis chrysantha (J.Presl) Mez
- Stylagrostis leiopoda (Wedd.) Mez
- Stylagrostis phalaroides (Wedd.) Mez
Deschampsia chrysantha (J.Presl) Saarela appears in other Kew resources:
| Date | Reference | Identified As | Barcode | Type Status |
|---|---|---|---|---|
| Jan 1, 1988 | Chile | Calamagrostis chrysantha | K000308478 | |
| Jan 1, 1988 | Chile | Calamagrostis chrysantha | K000308479 | |
| Jan 1, 1988 | Gay [s.n.], Chile | Calamagrostis chrysantha | K000308477 | |
| Jan 1, 1988 | Mandon, G. [1319], Bolivia | Calamagrostis chrysantha | K000308423 | isotype |
| Jan 1, 1988 | Gay, C. [s.n.], Coquimbo | Calamagrostis chrysantha | K000308476 | isotype |
First published in PhytoKeys 87: 88 (2017)
Accepted by
- Govaerts, R., Nic Lughadha, E., Black, N., Turner, R. & Paton, A. (2021). The World Checklist of Vascular Plants, a continuously updated resource for exploring global plant diversity. https://doi.org/10.1038/s41597-021-00997-6 Scientific Data 8: 215.
Literature
Kew Backbone Distributions
- Brako, L. & Zarucchi, J.L. (1993). Catalogue of the Flowering Plants and Gymnosperms of Peru Monographs in Systematic Botany from the Missouri Botanical Garden 45: i-xl, 1-1286. Missouri Botanical Garden.
- Renvoize, S.A. (1998). Gramineas de Bolivia: 1-644. The Royal Botanic Gardens, Kew.
- Zuloaga, F.O., Morrone, O. , Belgrano, M.J., Marticorena, C. & Marchesi, E. (eds.) (2008). Catálogo de las Plantas Vasculares del Cono Sur Monographs in Systematic Botany from the Missouri Botanical Garden 107: 1-3348. Missouri Botanical Garden.
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GrassBase - The Online World Grass Flora
http://creativecommons.org/licenses/by-nc-sa/3.0
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Herbarium Catalogue Specimens
Digital Image © Board of Trustees, RBG Kew http://creativecommons.org/licenses/by/3.0/
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Kew Backbone Distributions
The International Plant Names Index and World Checklist of Selected Plant Families 2022. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0
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Kew Names and Taxonomic Backbone
The International Plant Names Index and World Checklist of Selected Plant Families 2022. Published on the Internet at http://www.ipni.org and http://apps.kew.org/wcsp/
© Copyright 2017 International Plant Names Index and World Checklist of Selected Plant Families. http://creativecommons.org/licenses/by/3.0