Jarava ichu Ruiz & Pav.

First published in Fl. Peruv. 1: 5 (1798)
This species is accepted
The native range of this species is Mexico to N. Argentina and NW. Venezuela. It is a perennial and grows primarily in the montane 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: not threatened. Confidence: confident
[AERP]

Bernal, R., Gradstein, S.R. & Celis, M. (eds.). 2015. Catálogo de plantas y líquenes de Colombia. Instituto de Ciencias Naturales, Universidad Nacional de Colombia, Bogotá. http://catalogoplantasdecolombia.unal.edu.co

Distribution
Nativa en Colombia; Alt. 1500 - 4000 m.; Andes, Sierra Nevada de Santa Marta.
Morphology General Habit
Hierba
Conservation
No Evaluada
[CPLC]

Distribution
Biogeografic region: Andean. Elevation range: 1500–4000 m a.s.l. Native to Colombia. Colombian departments: Antioquia, Bogotá DC, Boyacá, Caldas, Cauca, Cesar, Cundinamarca, Huila, Magdalena, Nariño, Norte de Santander, Quindío, Risaralda, Santander, Tolima, Valle del Cauca.
Habit
Herb.
[UPFC]

Morphology General Habit
Perennial; caespitose; clumped densely. Culms (50-)80-100 cm long. Culm-internodes smooth to scaberulous. Leaves basal and cauline; differentiated into sheath and blade. Leaf-sheaths wider than blade at the collar; smooth, or scaberulous; glabrous on surface. Leaf-sheath oral hairs bearded. Ligule an eciliate membrane; 0.7 mm long; hyaline; lacerate; truncate. Leaf-blades erect to ascending; filiform; conduplicate; 15-45 cm long; 0.5-0.9 mm wide; stiff. Leaf-blade surface scaberulous.
Morphology Reproductive morphology Inflorescences
Bisexual. Inflorescence a panicle. Panicle contracted; lanceolate to elliptic; 18-40 cm long. Primary panicle branches bearing spikelets almost to the base. Spikelets solitary. Fertile spikelets pedicelled. Pedicels puberulous.
Morphology Reproductive morphology Inflorescences Spikelets
Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets oblanceolate; subterete; 7-9 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus evident; straight to curved; 0.1 mm long; bearded; acute.
Fertile
Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets oblanceolate; subterete; 7-9 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus evident; straight to curved; 0.1 mm long; bearded; acute.
Morphology Reproductive morphology Inflorescences Bracts Glume
Glumes similar; exceeding apex of florets; thinner than fertile lemma; shiny. Lower glume lanceolate; 9-11 mm long; 1-1.1 length of upper glume; hyaline; pallid, or purple; without keels; 3 -veined. Lower glume margins flat. Lower glume apex setaceously attenuate. Upper glume lanceolate; 9-11 mm long; 3 length of adjacent fertile lemma; hyaline; pallid, or purple; without keels; 3 -veined. Upper glume apex setaceously attenuate.
Morphology Reproductive morphology Flowers Florets
Fertile lemma linear to lanceolate; subterete; 2.5-3 mm long; membranous to scarious; dark brown; without keel; 5 -veined. Lemma surface pilose. Lemma margins convolute; covering most of palea. Lemma apex surmounted by a ring of hairs; with this appendage 3-4 mm long; awned; 1 -awned. Principal lemma awn bigeniculate; 11-13 mm long overall; with 5-8 mm long limb; with twisted column; deciduous; abscissing from top of lemma; limb scabrous. Palea lanceolate, or oblong; tightly convolute around flower; 0.3 length of lemma; 2 -veined; without keels. Palea apex entire; obtuse.
Morphology Reproductive morphology Flowers
Lodicules 3; oblong; 0.5 mm long; membranous; obtuse. Anthers 3; 0.6-0.7 mm long. Stigmas 2.
Morphology Reproductive morphology Fruits
Caryopsis with adherent pericarp; fusiform. Hilum linear.
Distribution
North America: Mexico. South America: Mesoamericana, northern South America, western South America, and southern South America.
Reference
Stipeae. TB.
[GB]

Sources

  • Angiosperm Extinction Risk Predictions v1

    • Angiosperm Threat Predictions
    • http://creativecommons.org/licenses/by/4.0
  • Catálogo de Plantas y Líquenes de Colombia

    • http://creativecommons.org/licenses/by-nc-sa/3.0
  • 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
  • Useful Plants and Fungi of Colombia

    • http://creativecommons.org/licenses/by-nc-sa/3.0