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Aegilops geniculata
OVATE GOAT GRASS

Higher Taxonomy
Family: Poaceae (Gramineae)View DescriptionDichotomous Key

Common Name: GRASS FAMILY
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: AegilopsView DescriptionDichotomous Key

Common Name: GOAT GRASS
Habit: Annual. Stem: generally erect to abruptly bent at base, generally glabrous. Leaf: sheath margins translucent, auricles ciliate; ligule membranous or 0; blade 1.5--15 cm, 1.5--5 mm wide, flat, spreading. Inflorescence: 1.5--11(15) cm, spike-like, cylindric or wider at base, +- open to dense; spikelets 2-ranked, 1 per node, basal generally vestigial, distal spikelets also generally reduced; breaking away as a single unit or in sections with axis segments attached. Fertile Spikelet: generally not compressed, 5--15 mm; glumes thick, hard, 3 +- veined, tips generally toothed or 1--5-awned; florets 2--5[8]; lemma similar to glumes or firmer, toothed or 1--3-awned at tip; palea papery, 2-keeled. Distal Spikelet: 2--5 mm, similar or not to fertile spikelet, generally sterile.
Species In Genus: 21--23 species: Mediterranean, sw¢ral Asia. Etymology: (Greek, preferred by goats, or Latin, a sweet-fruited oak) Note: Interfertile with Triticum and perhaps not distinct from it. Aegilops tauschii Coss. is reported from a single occurrence in Riverside Co., doubtfully naturalized.

Aegilops geniculata Roth
WAIF
Stem: 10--40 cm. Leaf: blade 2--7.5 cm, 2--5 mm wide. Inflorescence: 1--3 cm; vestigial basal spikelets 1--2; fertile spikelets 2--4; axis breaking apart above vestigial spikelets; spikelets not sunken in axis. Fertile Spikelet: 7--11 mm, urn-shaped, glumes 2--5-awned, awns 2--3.5 cm; florets generally 2--4, lower 1--2 fertile. Distal Spikelet: 2--5 mm; lemma 3-awned; lemma awns < glume awns. Chromosomes: 2n=28.
Ecology: Disturbed fields, roadsides; Elevation: < 500 m. Bioregional Distribution: NCoRO (Mendocino Co.), expected elsewhere; Distribution Outside California: native to Mediterranean Europe, western Asia. Flowering Time: May--Jul Note: Only known occurrence in United States.
Synonyms: Aegilops ovata L.
eFlora Treatment Author: James P. Smith, Jr.
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Citation for this treatment: James P. Smith, Jr. 2016. Aegilops geniculata, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/cgi-bin/get_IJM.pl?tid=11995, accessed on February 09, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora, http://ucjeps.berkeley.edu/IJM.html, accessed on February 09, 2016.


Aegilops geniculata
click for enlargement
© 2005 Steve Matson
Aegilops geniculata
click for enlargement
© 2005 Steve Matson
Aegilops geniculata
click for enlargement
© 2005 Steve Matson
Aegilops geniculata
click for enlargement
© 2005 Steve Matson

More photos of Aegilops geniculata in CalPhotos


Geographic subdivisions for Aegilops geniculata:
NCoRO (Mendocino Co.), expected elsewhere;
Markers link to CCH specimen records. If the markers are obscured, reload the page [or change window size and reload]. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.
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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).

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Data provided by the participants of the Consortium of California Herbaria.
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CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa.
Blue line denotes eFlora flowering time.