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Vascular Plants of California
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Schismus arabicus


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: SchismusView DescriptionDichotomous Key


Common Name: MEDITERRANEAN GRASS
Habit: Annual, biennial, cespitose. Stem: erect to prostrate. Leaf: generally basal, tufted, glabrous; ligule short-hairy; blade flat or inrolled. Inflorescence: panicle-like, dense, 1--7 cm, 0.5--2(3) cm wide. Spikelet: +- laterally compressed; axis breaking above glumes and between florets; glumes lanceolate, membranous, 5--7-veined; florets 3--8, bisexual; lemma 9-veined, ciliate proximally, toothed to notched, awn +- 0 (mucro occasionally <= 1.5 mm); palea < to > lemma.
Etymology: (Greek: split, from notched lemma)
eFlora Treatment Author: Kelly W. Allred
Reference: Kellogg 2003 FNANM 25:307--308
Unabridged Reference: Conert & Türpe 1974 Abh Senckenberg Naturf Ges 532:1--81
Schismus arabicus Nees
NATURALIZED
Habit: Annual. Stem: generally 5--20 cm. Leaf: blade < 1 mm wide, thread-like. Spikelet: glumes 4.5--6.5 mm; lemma 2.5--4 mm, teeth +- 0.3 × lemma; palea 2--3 mm. Chromosomes: 2n=12.
Ecology: Dry, open, generally disturbed areas; Elevation: < 1900 m. Bioregional Distribution: SnJV, CW, SCo, s ChI, TR, W&I, D; Distribution Outside California: to Texas, Arizona; native to Eurasia. Flowering Time: Mar--May
Jepson eFlora Author: Kelly W. Allred
Reference: Kellogg 2003 FNANM 25:307--308
Index of California Plant Names (ICPN; linked via the Jepson Online Interchange)
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Botanical illustration including Schismus arabicus

botanical illustration including Schismus arabicus

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Citation for this treatment: Kelly W. Allred 2012, Schismus arabicus, in Jepson Flora Project (eds.) Jepson eFlora, https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=43510, accessed on April 19, 2024.

Citation for the whole project: Jepson Flora Project (eds.) 2024, Jepson eFlora, https://ucjeps.berkeley.edu/eflora/, accessed on April 19, 2024.

Schismus arabicus
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©2011 Steve Matson
Schismus arabicus
click for enlargement
©2011 Steve Matson
Schismus arabicus
click for enlargement
©2011 Steve Matson
Schismus arabicus
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©2011 Steve Matson
Schismus arabicus
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©2022 Neal Kramer

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Geographic subdivisions for Schismus arabicus:
SnJV, CW, SCo, s ChI, TR, W&I, D
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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.
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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.
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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).