familyPoaceae
subfamilyPoaceae subfam. Chloridoideae
tribePoaceae tribe Cynodonteae
genusOpizia
speciesOpizia stolonifera

Opizia stolonifera

J. Presl
Mary E. Barkworth
Common names: Acapulco grass
Introduced
Treatment appears in FNA Volume 25. Treatment on page 269.
Please click on the illustration for a higher resolution version.
Illustrator: Karen Klitz, Linda A. Vorobik

Copyright: Utah State University

Culms erect or geniculate. Sheaths mostly glabrous, often with a few hairs on either side of the collar; ligules 1-1.5 mm; blades to 10 cm long, 2-3 mm wide, glabrous abaxially, mostly glabrous or scabrous adaxially, midveins often with a few hairs. Staminate culms 5-15 (30) cm; panicles with 1-6 branches; branches 0.5-2 cm; spikelets 3-4 mm, glabrous; anthers 2-2.5 mm, pale. Pistillate culms to 10 cm; spikes with 6-12 spikelets (lower nodes sometimes with short branches); pistillate spikelets 2.8-4 mm; glumes to 3 mm; lemma bodies 2-2.5 mm, 3-lobed and 3-awned, awns 3.4-6.8 mm; palea keels exceeding the lemmas; rudiment 3-awned. 2n = unknown.

Discussion

Opizia stolonifera grows along dry roadsides in Florida. No pistillate plants have been found in the Flora region.

Selected References

None.

Lower Taxa

None.

"decumbent" is not a number.

... more about "Opizia stolonifera"
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Abaxial ligule presence
absent +
Abaxial ligule quantity
common +
Adaxial cell presence
absent +
Adaxial cell shape
bulliform +
Adaxial cell structure in adjective form
stomatal +
Adaxial ligule architecture or pubescence or shape
ciliate +
Adaxial ligule length or size
longer +
Adaxial ligule presence
absent +
Adaxial ligule texture
membranous +
Anther coloration
pale +
Anther quantity
1 +  and 3 +
Anther some measurement
0.2 cm2 mm <br />0.002 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
Apical cell height or length or size
short +
Apical cell width
Wide (?) +
Arm cell anatomy
kranz +
Arm cell presence
absent +
Auricle presence
absent +
Author
Mary E. Barkworth +
Authority
J. Presl +
Awn atypical quantity
1 (?) +  and 3 (?) +
Awn orientation
arising +
Awn quantity
multiple +, , +  and single +
Awn some measurement
0.34 cm3.4 mm <br />0.0034 m <br /> (0.68 cm6.8 mm <br />0.0068 m <br />) +
Back shape
keeled +  and rounded +
Base architecture
pseudopetiolate +  and branching +
Base arrangement
close +
Base fusion
not fused +
Base position
intravaginal +, extravaginal +, branching +  and basal +
Base size
swelling +
Base texture
membranous +
Base width
thick +
Blade architecture
not pseudopetiolate +
Blade architecture or arrangement
radiate +
Blade length
0 cm0 mm <br />0 m <br /> (10 cm100 mm <br />0.1 m <br />) +
Blade position
adaxial +
Blade prominence or shape
flat +
Blade pubescence
scabrous +  and glabrous +
Blade shape
usually linear +  and lanceolate occasionally ovate +
Blade width
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
Branch length
0 cm0 mm <br />0 m <br /> (?) +  and 0.6 cm6 mm <br />0.006 m <br /> (?) +
Branch quantity
1;6 +
Branch shape
pectinate +  and spikelike +
Branch some measurement
0.5 cm5 mm <br />0.005 m <br /> (2 cm20 mm <br />0.02 m <br />) +
Callus shape
blunt +
Cell shape
triangular +  and dome--shaped +
Cilium architecture or pubescence or shape
ciliate +
Cilium length or size
sometimes longer +
Cilium texture
membranous +
Column quantity
single +
Common name
Acapulco grass +
Culm architecture
pistillate +  and staminate +
Culm architecture or arrangement or growth form
solitary +
Culm atypical some measurement
30 +
Culm duration
annual +
Culm growth form
climbing +
Culm growth form or location
floating +
Culm orientation
erect +
Culm shape
geniculate +
Culm some measurement
0 cm0 mm <br />0 m <br /> (10 cm100 mm <br />0.1 m <br />) +
Culm texture
not woody +
Distal floret size
reduced +
Embryo architecture or shape
cleft +
Embryo presence
absent +
Embryo shape
not waisted +
Embryo size
large +
Endosperm texture
hard +
Filament shape
capillary +
Floret architecture
pistillate +  and staminate +
Floret arrangement
adjacent +
Floret height or length or size
shorter +
Floret length or size
sometimes longer +
Floret quantity
1 +
Floret reproduction
bisexual +
Floret shape
round +  and compressed +
Floret size
reduced +
Fusoid cell presence
absent +
Genus quantity
1 +
Glume architecture or shape
awned +
Glume height or length or size
much shorter +
Glume length or size
shorter or longer +
Glume position
subtending +
Glume quantity
2 +
Glume size
unequal +
Glume some measurement
0 cm0 mm <br />0 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
Group quantity
3 +
Hair quantity
few +
Hair relief
coarse +
Hair shape
uncinate +
Hilum arrangement or course or shape
linear +
Hilum coloration or relief
punctate +
Hilum height or length or size
short +
Illustration
Present +
Illustration copyright
Utah State University +
Illustrator
Linda A. Vorobik +  and Karen Klitz +
Inflorescence architecture
pistillate +  and stoloniferous +
Inflorescence arrangement
paniculate +  and racemose +
Inflorescence fusion
distinct +
Inflorescence growth form
mat-forming +  and dimorphic +
Inflorescence position
axillary +
Inflorescence position or structure subtype
terminal +
Inflorescence reproduction
unisexual +
Inflorescences panicle architecture
staminate +
Inflorescences panicle position
exserted +
Internode architecture
hollow +  and solid +
Internode shape
elongate +
Layer presence
not absent +
Leaf arrangement
distichous +
Leaf arrangement or growth form
not clustered +
Leaf margin arrangement
Overlapping (?) +
Lemma architecture
3-veined +
Lemma architecture or shape
3-awned +
Lemma body architecture or shape
3-awned +
Lemma body shape
3-lobed +
Lemma body some measurement
0.2 cm2 mm <br />0.002 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
Lemma shape
keeled +
Lemma texture
coriaceous +
Ligule architecture or pubescence or shape
not ciliate +
Ligule length or size
sometimes longer +
Ligule presence
absent +
Ligule some measurement
0.1 cm1 mm <br />0.001 m <br /> (0.15 cm1.5 mm <br />0.0015 m <br />) +
Ligule texture
membranous +
Lodicule presence
absent +
Lodicule prominence
inconspicuous +
Lodicule quantity
2 +
Lower glume presence
absent +
Lower glume prominence
rudimentary +
Marginal hair arrangement
adjacent +
Marginal hair fragility
stiff +
Marginal hair relief
coarse +
Microhair presence
absent +
Midrib architecture
simple +
Node prominence
concealed +  and prominent +
Number of lower taxa
0 +
Other quantity
2 +  and 1 +
Ovary pubescence
glabrous +
Palea keel architecture
winged +
Palea keel fusion
adnate +
Palea shape
keeled +
Panicle architecture
simple +
Panicle branch height or length or size
short +
Pericarp architecture or fragility
loose +
Pericarp arrangement
separating +
Pericarp condition or texture
dry +
Pericarp fusion
free +
Pericarp texture
dry +  and fleshy +
Raceme shape
spikelike +
Rachis prominence
evident +
Rachis shape
elongate +
Reference
None +
Rudiment architecture or shape
3-awned +
Rudiment quantity
1 +
Rudiment reproduction
bisexual +
Sheath architecture
open +
Sheath condition
closed +
Sheath pubescence
glabrous +
Sheath shape
keeled +
Source xml
https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V25/V25 902.xml +
Special status
Introduced +
Spikelet architecture
pistillate +
Spikelet architecture or arrangement or growth form
solitary +
Spikelet architecture or shape
3-awned +
Spikelet condition
intact +
Spikelet fixation
attached +
Spikelet life cycle
falling +
Spikelet position or shape
distal +
Spikelet presence
absent +
Spikelet pubescence
glabrous +
Spikelet quantity
6 +  and 12 +
Spikelet reproduction
sterile +
Spikelet shape
compressed +
Spikelet some measurement
0.28 cm2.8 mm <br />0.0028 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Stamen quantity
1 +  and 3 +
Starch-grain architecture
compound +  and simple +
Starch-grain presence
absent +
Style-branch atypical quantity
4 +  and 1 +
Style-branch quantity
2 (?) +  and 3 (?) +
Style arrangement
separate +
Style quantity
2 +
Synonyms
Gramineae +
Taxon architecture
staminate +
Taxon family
Poaceae +
Taxon name
Opizia stolonifera +
Taxon parent
Opizia +
Taxon rank
species +
Taxon reproduction
dioecious +
Tissue coloration
hyaline +
Tissue texture
membranous +
Tooth coloration
hyaline +
Tooth height or length or size
short +
Tooth quantity
4 (?) +
Upper glume prominence or shape
flat +
Upper glume size
subequal +
Upper glume texture
membranous +
Vein presence
absent +
Vein quantity
7 (?) +  and 13 (?) +
Vein size
major +
Volume
Volume 25 +
Whole organism arrangement or pubescence
tufted +
Whole organism duration
perennial +  and annual +
Whole organism growth form
plant +
Whole organism growth form or habitat
aquatic +  and terrestrial +
Whole organism reproduction
dioecious +  and monoecious +
Whole organism variability
varied +
X chromosome atypical quantity
12 +
X chromosome quantity
12 +, 10 +, 9 +, 8 +  and 7 +