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Vascular Plants of California
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Crypsis vaginiflora
MODEST PRICKLE 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: CrypsisView DescriptionDichotomous Key


Common Name: PRICKLE GRASS
Habit: Annual. Stem: prostrate to erect. Leaf: ligule hairy; blade generally short, linear to narrowly lanceolate. Inflorescence: panicle-like, dense, cylindric and exserted or head-like and enclosed by enlarged sheaths. Spikelet: bisexual, strongly compressed, falling as 1 unit; glumes, lemma acute or short-pointed; glumes <= floret, generally lanceolate, keeled, strongly 1-veined; floret 1; lemma membranous, 1-veined; palea generally 2-veined, generally splitting with age; stamens generally 3. Fruit: utricle-like, when wet gelatinous with seed emergent from split ovary wall.
Species In Genus: 8 species: Mediterranean Europe, Asia, central Africa. Etymology: (Greek: concealment, from partly hidden inflorescence)
eFlora Treatment Author: James P. Smith, Jr.
Reference: Hammel & Reeder 2003 FNANM 25:139--141
Unabridged Reference: Hammel & Reeder 1979 Syst Bot 4:267--280
Crypsis vaginiflora (Forssk.) Opiz
NATURALIZED
Habit: Plant generally green, generally mat-like. Stem: prostrate, < 30 cm; branches many. Leaf: sheath margins hairy; blade 1--5 cm, +- rigid, breaking easily from sheaths. Inflorescence: 3--15 mm, 3--6 mm wide, +- ovoid, generally enclosed by subtending sheath. Spikelet: generally 2.5--3.2 mm; glumes +- equal, lower glume margin hairy; lemma +- = glumes. Chromosomes: 2n=48.
Ecology: Wet soils, lake margins, vernal pools; Elevation: < 1280 m. Bioregional Distribution: NCoR, CaR, n SNF, GV, SCoR, SW (exc n ChI, SnBr), MP; Distribution Outside California: Oregon, Idaho; native to Eurasia. Flowering Time: Jun--Sep
Synonyms: Crypsis niliaca Fig. & De Not.
Jepson eFlora Author: James P. Smith, Jr.
Reference: Hammel & Reeder 2003 FNANM 25:139--141
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Botanical illustration including Crypsis vaginiflora

botanical illustration including Crypsis vaginiflora

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Citation for this treatment: James P. Smith, Jr. 2012, Crypsis vaginiflora, in Jepson Flora Project (eds.) Jepson eFlora, http://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=21183, accessed on December 06, 2019.

Citation for the whole project: Jepson Flora Project (eds.) 2019, Jepson eFlora, http://ucjeps.berkeley.edu/eflora/, accessed on December 06, 2019.

Crypsis vaginiflora
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© 2007 Neal Kramer

More photos of Crypsis vaginiflora in CalPhotos



Geographic subdivisions for Crypsis vaginiflora:
NCoR, CaR, n SNF, GV, SCoR, SW (exc n ChI, SnBr), MP
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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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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.