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.
Common Name: FESCUE, RYE GRASS Habit: Annual, perennial herb, loosely to densely cespitose, generally +- glabrous, rhizomes present or 0; bisexual, dioecious in Festuca kingii. Stem: decumbent, ascending to erect, to 2 m. Leaf: basal and cauline; sheath generally persisting; collar generally glabrous; ligule generally < 1 mm, membranous, truncate, minutely fringed; blade flat or rolled, claw-like basal auricles generally 0. Inflorescence: panicle-like, branches dense and appressed to open and spreading or spike-like. Spikelet: glumes 2, < lowest floret, unequal, lower sometimes minute, 1--3-veined, upper 3--5-veined; axis breaking above glumes and between florets, florets (1)2--10(17), generally bisexual; lemma 3--5(7)-veined, base generally glabrous, tip entire, occasionally minutely 2-toothed, awn 0 or terminal, generally straight, glabrous; palea +- = lemma; stamens 3 or 1. Fruit: obovoid to elongate, free from or +- adhering to palea and lemma. Species In Genus: 500+ species: cosmopolitan. Etymology: (Latin: straw, stem or straw-like weed) Note: As treated here, including ×Festulpia, ×Festulolium, Leucopoa, Lolium, ×Schedolium, ×Schedololium, Schedonorus, and Vulpia. Lolium rigidum Gaudin (combination in Festuca evidently not available), native to Europe and Africa, has been found sporadically as an urban and agricultural weed, but has not been collected in recent years and is doubtfully naturalized. eFlora Treatment Author: James P. Smith, Jr. & Susan G. Aiken Reference: Darbyshire 2007 FNANM 24:443--448; Darbyshire & Pavlick 2007 FNANM 24:389--443; Lonard 2007 FNANM 24:448--454 Unabridged Reference: Aiken et al. 1996 onwards @ http://biodiversity.uno.edu/delta/festuca/index.htm [broken 21.vii.2010]; Lonard & Gould 1974 Madroño 22:217--230; Wilson 1999 Ph.D. Dissertation Oregon State Univ
Festuca arundinacea Schreb.
NATURALIZED Habit: Perennial herb, sometimes rhizomed. Stem: 8--20 dm, robust; nodes visible. Leaf: sheath shredding with age; ligule 0.5--1 mm; blade 25--70 cm, 4--10 mm wide, flat or loosely rolled, hairy, +- rigid, prominently ribbed above, basal auricles +- clasping stem, +- hairy. Inflorescence: 15--35 cm; branches many, spreading. Spikelet: 8--16 mm; lower glume 3--6 mm, upper 4--9 mm; florets 3--8; lemma 6--12 mm, generally minutely hairy, scabrous near tip, often tinged purple, awn 0.5--4 mm or 0; anthers 3--4 mm; ovary tip glabrous. Chromosomes: 2n=28,42,56,63,70. Ecology: Disturbed places; Elevation: < 2700 (generally < 1000) m. Bioregional Distribution: CA-FP, W&I; Distribution Outside California: to eastern North America; native to Eurasia. Flowering Time: May--Jun Note: Used for forage and soil stabilization. Often infected with a fungus that is toxic to cattle. Synonyms: Schedonorus arundinaceus (Schreb.) Dumort. Unabridged Synonyms: Festuca elatior L.; Lolium arundinaceum (Schreb.) Darbysh.; Schedonorus phoenix (Scop.) Holub Jepson eFlora Author: James P. Smith, Jr. & Susan G. Aiken Reference: Darbyshire 2007 FNANM 24:443--448; Darbyshire & Pavlick 2007 FNANM 24:389--443; Lonard 2007 FNANM 24:448--454 Jepson Online Interchange Weed listed by Cal-IPC Previous taxon: Festuca Next taxon: Festuca brachyphylla subsp. breviculmis
Botanical illustration including Festuca arundinacea
Citation for this treatment: James P. Smith, Jr. & Susan G. Aiken 2012, Festuca arundinacea, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=25783, accessed on October 14, 2019.
Citation for the whole project: Jepson Flora Project (eds.) 2019, Jepson eFlora, http://ucjeps.berkeley.edu/eflora/, accessed on October 14, 2019.
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CCH collections by month
Duplicates counted once; synonyms included.
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Blue line denotes eFlora flowering time.
