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Brachypodium pinnatum

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: BrachypodiumView DescriptionDichotomous Key

Common Name: FALSE BROME
Habit: Annual, perennial herb from rhizomes or cespitose, 5--200 cm. Stem: decumbent to erect; nodes often hairy. Leaf: generally cauline; blade flat to inrolled, glabrous to short-hairy; ligule membranous. Inflorescence: spike- to raceme-like; spikelets generally 1 per node, +- cylindric, ascending to appressed, sessile to short-stalked. Spikelet: glumes unequal, <= lowest floret, 3--9-veined, acute to awned; florets 3--24, bisexual; axis breaking above glumes and between florets; lemma back rounded, 5--9-veined, acute to awned from tip; palea slightly < lemma, clearly ciliate or toothed.
Species In Genus: +- 18 species: temperate, subtropics worldwide. Etymology: (Greek: short foot, from short, thick spikelet stalk in some species) Note: Reports of Brachypodium phoenicoides (L.) Roem. & Schult. from Sonoma Co. have not been verified.
eFlora Treatment Author: Michael B. Piep

Brachypodium pinnatum (L.) P. Beauv.
Habit: Perennial herb from rhizomes, generally 30--120 cm. Stem: generally erect. Leaf: sheath smooth, sometimes hairy, blade 6--45 cm, 1.5--7(10) mm wide, flat, +- inrolled when dry, veins not equally prominent. Inflorescence: 4--25 cm; spikelets (3)6--15(20) per stem. Spikelet: glumes 3--8 mm; florets (3)7--24; lemma 6--11 mm, awn 1--7 mm; palea finely ciliate above middle.
Ecology: Open woodland, forest edges and grassland; Elevation: < 30 m. Bioregional Distribution: s NCo, SnFrB, expected elsewhere; Distribution Outside California: Massachusetts; native to Europe. Flowering Time: Summer
eFlora Treatment Author: Michael B. Piep
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Citation for this treatment: Michael B. Piep 2016. Brachypodium pinnatum, in Jepson Flora Project (eds.) Jepson eFlora,, accessed on October 20, 2016.

Citation for the whole project: Jepson Flora Project (eds.) 2016. Jepson eFlora,, accessed on October 20, 2016.

Geographic subdivisions for Brachypodium pinnatum:
s NCo, SnFrB, expected elsewhere;
Markers link to CCH specimen records. Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues. Purple markers indicate specimens collected from a garden, greenhouse, or other non-wild location.
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.