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Vascular Plants of California
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Enneapogon desvauxii

Higher Taxonomy
Family: Poaceae (Gramineae)View DescriptionDichotomous Key
Habit: Annual to woody perennial herb; roots generally fibrous. Stem: generally round, hollow; nodes swollen, solid. Leaf: alternate, 2-ranked, generally linear, parallel-veined; sheath generally open; ligule membranous or hairy, at blade base. Inflorescence: various (of generally many spikelets). Spikelet: glumes generally 2; florets (lemma, palea, flower) 1--many; lemma generally membranous, sometimes glume-like; palea generally +- transparent, +- enclosed by lemma. Flower: generally bisexual, minute; perianth vestigial; stamens generally 3; stigmas generally 2, generally plumose. Fruit: grain, sometimes achene- or utricle-like.
Genera In Family: 650--900 genera; +- 10550 species: worldwide; greatest economic importance of any family (wheat, rice, maize, millet, sorghum, sugar cane, forage crops, ornamental, weeds; thatching, weaving, building materials). Note: Generally wind-pollinated. Achnatherum, Ampelodesmos, Hesperostipa, Nassella, Piptatherum, Piptochaetium, Ptilagrostis moved to Stipa; Elytrigia, Leymus, Pascopyrum, Pseudoroegneria, Taeniatherum to Elymus; Hierochloe to Anthoxanthum; Lolium, Vulpia to Festuca; Lycurus to Muhlenbergia; Monanthochloe to Distichlis; Pleuraphis to Hilaria; Rhynchelytrum to Melinis. The following taxa (in genera not included here), recorded in California from historical collections or reported in literature, are extirpated, lacking vouchers, or not considered naturalized: Acrachne racemosa (Roth) Ohwi, Allolepis texana (Vasey) Soderstr. & H.F. Decker, Amphibromus nervosus (Hook. f.) Baill., Axonopus affinis Chase, Axonopus fissifolius (Raddi) Kuhlm., Coix lacryma-jobi L., Cutandia memphitica (Spreng.) K. Richt., Dinebra retroflexa (Vahl) Panz., Eremochloa ciliaris (L.) Merr., Eustachys distichophylla (Lag.) Nees, Gaudinia fragilis (L.) P. Beauv., Miscanthus sinensis Andersson, Neyraudia arundinacea (L.) Henrard, Phyllostachys aurea Rivière & C. Rivière, Phyllostachys bambusoides Siebold & Zuccarini, Rottboellia cochinchinensis (Lour.) Clayton, Schedonnardus paniculatus (Nutt.) Branner & Coville, Schizachyrium cirratum (Hack.) Wooton & Standl., Schizachyrium scoparium (Michx.) Nash, Themeda quadrivalvis (L.) Kuntze, Thysanolaena latifolia (Hornem.) Honda, Tribolium obliterum (Hemsl.) Renvoize, Zea mays L., Zizania palustris L. var. interior (Fassett) Dore, Zoysia japonica Steud. Paspalum pubiflorum E. Fourn., Paspalum quadrifarium Lam., are now reported for southern California (J Bot Res Inst Texas 4:761--770). See Glossary p. 30 for illustrations of general family characteristics.
eFlora Treatment Author: James P. Smith, Jr., except as noted
Scientific Editor: James P. Smith, Jr., J. Travis Columbus, Dieter H. Wilken.
Genus: EnneapogonView Description 

Habit: Perennial herb, generally cespitose. Stem: ascending to erect. Leaf: basal and cauline; ligule hairy; blade flat to inrolled. Inflorescence: panicle- to spike-like, narrow, generally compact. Spikelet: glumes +- equal, 3--9-veined; florets 3--6, breaking above glumes and weakly between florets, lower 1--3 florets fertile, bisexual, upper generally sterile, gradually reduced; lemmas < glumes, elliptic to ovate, firmly membranous, rounded on back, generally 9-veined, awned at truncate tip, awns 9, plumose; fertile palea slightly > lemma.
Species In Genus: +- 30 species: warm temperate North America, Africa, Asia, Australia. Etymology: (Greek: nine beards, from 9 plumose lemma awns)
eFlora Treatment Author: John R. Reeder & Dieter H. Wilken
Reference: Reeder 2003 FNANM 25:286--287
Unabridged Reference: Renvoize 1968 Kew Bull 22:393--401
Enneapogon desvauxii P. Beauv.
Stem: 1--4 dm; nodes dense, short-hairy; internodes 2--5 cm. Leaf: soft-hairy; sheath ciliate; ligule hairs < 1 mm; blade > 2 × internode, < 2 mm wide, +- inrolled. Inflorescence: spike-like, 3--6 cm, +- gray. Spikelet: glumes minutely soft-hairy on back, strongly veined, lower 3--5 mm, upper 4--6 mm; florets 3, lower 1 fertile, upper 2 sterile; lemma 1--3 mm, awns 2--5 mm, exserted. Chromosomes: 2n=20.
Ecology: Rocky slopes, crevices, calcareous soils, desert woodland; Elevation: 1275--1825 m. Bioregional Distribution: e DMoj; Distribution Outside California: to Colorado, western Texas, northern Mexico, South America. Flowering Time: Aug--Sep Note: Lower sheaths sometimes enclose cleistogamous spikelets that disperse with stem parts.
Jepson eFlora Author: John R. Reeder & Dieter H. Wilken
Reference: Reeder 2003 FNANM 25:286--287
Index of California Plant Names (ICPN; linked via the Jepson Online Interchange)
Listed on CNPS Rare Plant Inventory

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Botanical illustration including Enneapogon desvauxii

botanical illustration including Enneapogon desvauxii


Citation for this treatment: John R. Reeder & Dieter H. Wilken 2012, Enneapogon desvauxii, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on June 28, 2022.

Citation for the whole project: Jepson Flora Project (eds.) 2022, Jepson eFlora,, accessed on June 28, 2022.

Enneapogon desvauxii
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© 2012 Keir Morse
Enneapogon desvauxii
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© 2005 James M. Andre
Enneapogon desvauxii
click for enlargement
© 2012 Keir Morse
Enneapogon desvauxii
click for enlargement
© 2008 Steve Matson
Enneapogon desvauxii
click for enlargement
© 2005 James M. Andre
Enneapogon desvauxii
click for enlargement
© 2008 Steve Matson

More photos of Enneapogon desvauxii in CalPhotos

Geographic subdivisions for Enneapogon desvauxii:
e DMoj
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map of distribution 1
(Note: any qualifiers in the taxon distribution description, such as 'northern', 'southern', 'adjacent' etc., are not reflected in the map above, and in some cases indication of a taxon in a subdivision is based on a single collection or author-verified occurence).


Data provided by the participants of the  Consortium of California Herbaria.
View all CCH records
All markers link to CCH specimen records. The original determination is shown in the popup window.
Blue markers indicate specimens that map to one of the expected Jepson geographic subdivisions (see left map). Purple markers indicate specimens collected from a garden, greenhouse, or other non-wild location.
Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.

CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa, if there are more than 1 infraspecific taxon in CA.
Blue line denotes eFlora flowering time (fruiting time in some monocot genera).