- Family: Poaceae Barnhart
- Genus: Aristida L.
Aristida desmantha Trin. & Rupr.
- Genus: Aristida L.
This species is accepted, and its native range is Central U.S.A. to Louisiana.
[GB]
- Habit
- Annual; caespitose. Culms erect; 45-100 cm long; wiry. Lateral branches ample. Leaf-sheaths without keel; glabrous on surface, or pubescent, or pilose, or woolly. Ligule a fringe of hairs; 0.2-0.3 mm long. Leaf-blades flat, or involute; 25-40 cm long; 2-4.5 mm wide. Leaf-blade surface scabrous; rough adaxially.
- Inflorescences
- Inflorescence a panicle. Panicle open; ovate; 8-20 cm long. Primary panicle branches ascending. Panicle branches stiff; scabrous. Spikelets solitary. Fertile spikelets sessile.
- Spikelets
- Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets linear; subterete; 10-13 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus elongated; 2 mm long; pubescent; pungent.
- Fertile
- Spikelets comprising 1 fertile florets; without rhachilla extension. Spikelets linear; subterete; 10-13 mm long; breaking up at maturity; disarticulating below each fertile floret. Floret callus elongated; 2 mm long; pubescent; pungent.
- Glume
- Glumes similar; exceeding apex of florets; thinner than fertile lemma. Lower glume lanceolate; 10-13 mm long; 1 length of upper glume; membranous; 1 -veined. Lower glume lateral veins absent. Lower glume surface glabrous, or hispid. Lower glume apex acute; awned; 1 -awned. Lower glume awn 2-4 mm long. Upper glume lanceolate; 10-13 mm long; 1.3-1.4 length of adjacent fertile lemma; membranous; 1 -veined. Upper glume lateral veins absent. Upper glume surface glabrous, or hispid. Upper glume apex acute; awned; 1 -awned. Upper glume awn 2-4 mm long.
- Florets
- Fertile lemma linear; laterally compressed; 7-10 mm long; coriaceous; yellow and purple; mottled with last colour; without keel; 3 -veined. Lemma margins convolute; covering most of palea. Lemma apex awned; 3 -awned. Principal lemma awn 3-branched; recurved at base of limb; with 20-35 mm long limb; with a straight or slightly twisted column; deciduous; abscissing from top of lemma. Column of lemma awn 1-2 mm long. Lateral lemma awns gyrate; 20-35 mm long; subequal to principal.
- Flowers
- Anthers 3.
- Distribution
- North America: north-central USA and south-central .
- Reference
- Aristideae. Gr Tex 1993.
Native to:
Arkansas, Illinois, Kansas, Louisiana, Missouri, Nebraska, Oklahoma, Texas, Wisconsin
Aristida desmantha Trin. & Rupr. appears in other Kew resources:
| Date | Reference | Identified As | Barcode | Type Status |
|---|---|---|---|---|
| Drummond, T. [333], Texas | K000906136 | |||
| Drummond, T. [285], Texas | K000906137 | |||
| Drummond, T. [285], Texas | K000906138 |
First published in Sp. Gram. Stipac.: 109 (1842)
Accepted by
- Clayton, W.D., Harman, K.T. & Williamson, H. (2006). World Grass Species - Synonymy database The Board of Trustees of the Royal Botanic Gardens, Kew.
- Flora of North America Editorial Committee (2003). Flora of North America North of Mexico 25: 1-781. Oxford University Press, New York, Oxford.
Literature
Kew Backbone Distributions
- Flora of North America Editorial Committee (2003). Flora of North America North of Mexico 25: 1-781. Oxford University Press, New York, Oxford.
GrassBase - The Online World Grass Flora
http://creativecommons.org/licenses/by-nc-sa/3.0
Herbarium Catalogue Specimens
'The Herbarium Catalogue, Royal Botanic Gardens, Kew. Published on the Internet http://www.kew.org/herbcat [accessed on Day Month Year]'. Please enter the date on which you consulted the system.
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 Selected Plant Families 2021. 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
Kew Names and Taxonomic Backbone
The International Plant Names Index and World Checklist of Selected Plant Families 2021. 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