Chrysopogon gryllus (L.) Trin.

First published in Fund. Agrost.: 188 (1820)
This species is accepted
The native range of this species is Central Europe to China (Yunnan). It is a perennial or rhizomatous geophyte 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 erect; 50-150 cm long. Ligule a fringe of hairs. Leaf-blades 15-35 cm long; 2.5-4.5 mm wide. Leaf-blade surface glabrous, or pilose; with tubercle-based hairs. Leaf-blade apex abruptly acute, or acute, or acuminate.
Morphology Reproductive morphology Inflorescences
Inflorescence a panicle with branches tipped by a raceme. Panicle open, or contracted; ovate; 6-18 cm long. Primary panicle branches appressed, or ascending; whorled at most nodes; simple. Panicle branches flexible, or capillary; straight, or flexuous; villous (fulvously); hairy at tip. Racemes bearing a triad of spikelets, or few fertile spikelets; 1-5 fertile spikelets on each. Rhachis evident, or obsolete; fragile at the nodes; flattened; ciliate on margins. Rhachis hairs red. Rhachis internodes linear. Rhachis internode tip oblique; flat. Spikelets in pairs, or in threes. Fertile spikelets sessile; 1 in the cluster. Companion sterile spikelets pedicelled; 1-2 in the cluster. Pedicels linear; 0.66-0.75 length of fertile spikelet; glabrous.
Morphology Reproductive morphology Inflorescences Spikelets
Companion sterile spikelets well-developed; male; lanceolate; 7-11 mm long; as long as fertile; separately deciduous. Companion sterile spikelet glumes chartaceous; awned; one glume awned; with 3.5-7 mm long awn. Companion sterile spikelet lemmas enclosed by glumes; muticous. Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets oblong; laterally compressed; 7-9 mm long; falling entire; deciduous with accessory branch structures. Spikelet callus linear; 2 mm long; pilose; base pungent. Spikelet callus hairs red.
Sterile
Companion sterile spikelets well-developed; male; lanceolate; 7-11 mm long; as long as fertile; separately deciduous. Companion sterile spikelet glumes chartaceous; awned; one glume awned; with 3.5-7 mm long awn. Companion sterile spikelet lemmas enclosed by glumes; muticous.
Fertile
Spikelets comprising 1 basal sterile florets; 1 fertile florets; without rhachilla extension. Spikelets oblong; laterally compressed; 7-9 mm long; falling entire; deciduous with accessory branch structures. Spikelet callus linear; 2 mm long; pilose; base pungent. Spikelet callus hairs red.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes dissimilar; exceeding apex of florets; firmer than fertile lemma. Lower glume oblong; 5-8 mm long; 1 length of spikelet; cartilaginous; without keels. Lower glume surface spinose; rough on flanks; hispid; hairy at apex. Upper glume lanceolate; 1-keeled. Upper glume surface hispid; hairy at apex. Upper glume muticous, or mucronate, or awned; 1 -awned. Upper glume awn 1-10 mm long; glabrous.
Morphology Reproductive morphology Flowers Florets
Basal sterile florets barren; without significant palea. Lemma of lower sterile floret lanceolate; hyaline; 2 -veined. Fertile lemma oblong; hyaline; without keel. Lemma apex dentate; 2 -fid; awned; 1 -awned. Principal lemma awn from a sinus; geniculate; 12-20 mm long overall; with twisted column. Column of lemma awn pubescent. Palea absent or minute.
Distribution
Europe: central, southwestern, southeastern, and eastern. Asia-temperate: Caucasus, western Asia, Arabia, and China. Asia-tropical: India and Malesia.
Reference
Andropogoneae. Fl Pak.
[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