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Puccinellia distans

EUROPEAN ALKALI 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: PuccinelliaView DescriptionDichotomous Key


Common Name: ALKALI GRASS
Habit: Annual, perennial herb; stolons and rhizomes generally 0. Stem: decumbent to erect. Leaf: basal and cauline; sheath open +- to base; ligule thinly membranous, acute to truncate, sometimes toothed. Inflorescence: panicle-like; lower branches reflexed to erect in fruit; spikelets stalked. Spikelet: bisexual; glumes < lowest floret, lower glume generally 1-veined, upper 3-veined; florets 2--9; lemma generally firm, back generally rounded, sometimes weakly keeled near tip, margin entire to scabrous-serrate near tip at 10×, glabrous to +- puberulent at base and along the veins in lower 1/2, generally glabrous elsewhere on surface, generally faintly 5-veined; awn 0; palea +- = lemma.
Etymology: (B. Puccinelli, botanist, Italy, 1808--1850) Note: Generally on wet saline or alkaline soils in coastal and inland habitats; some species difficult to separate without hand lens. Puccinellia maritima (Huds.) Parl. not in California.
eFlora Treatment Author: Jerrold I. Davis
Reference: Davis & Consaul 2007 FNANM 24:459--477
Unabridged Reference: Davis 1983 Syst Bot 8:341--353
Puccinellia distans (Jacq.) Parl.
NATURALIZED
Habit: Perennial herb. Leaf: cauline blade flat to inrolled, 1--7 mm wide when flat. Inflorescence: 2.5--20 cm; lower branches spreading to reflexed in fruit; spikelet stalk scabrous. Spikelet: lemma tip widely obtuse to truncate, margin near tip scabrous-serrate, lowest lemma 1.5--2(2.2) mm; anthers of lowest floret 0.4--0.8 mm. Chromosomes: 2n=14,28,42.
Ecology: Saline meadows, flats; Elevation: < 2700 m. Bioregional Distribution: CA-FP, GB; Distribution Outside California: to Alaska, northeastern North America; native to Eurasia. Flowering Time: Jun--Jul
Jepson eFlora Author: Jerrold I. Davis
Reference: Davis & Consaul 2007 FNANM 24:459--477
Index of California Plant Names (ICPN; linked via the Jepson Online Interchange)

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Citation for this treatment: Jerrold I. Davis 2012, Puccinellia distans, in Jepson Flora Project (eds.) Jepson eFlora, https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=40307, accessed on July 17, 2024.

Citation for the whole project: Jepson Flora Project (eds.) 2024, Jepson eFlora, https://ucjeps.berkeley.edu/eflora/, accessed on July 17, 2024.

Puccinellia distans
click for image enlargement
©2011 Steve Matson
Puccinellia distans
click for image enlargement
©2011 Steve Matson
Puccinellia distans
click for image enlargement
©2011 Steve Matson
Puccinellia distans
click for image enlargement
©2011 Steve Matson
Puccinellia distans
click for image enlargement
©2011 Steve Matson

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Geographic subdivisions for Puccinellia distans:
CA-FP, GB
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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 occurrence).






 

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.
Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.
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CCH collections by month Flowering-Fruiting Monthly Counts

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).