familyPoaceae
subfamilyPoaceae subfam. Pooideae
tribePoaceae tribe Poeae
genusAmmophila
speciesAmmophila breviligulata
subspeciesAmmophila breviligulata subsp. breviligulata

Ammophila breviligulata subsp. breviligulata

Mary E. Barkworth
Common names: American beachgrass Ammophile à ligule courte
Treatment appears in FNA Volume 24. Treatment on page 777.
Please click on the illustration for a higher resolution version.
Illustrator: Linda Ann Vorobik, Hana Pazdírková

Copyright: Utah State University

Flag leaf-blades 5-39 cm. Panicles (9.5) 13-40 cm. Glumes 8-15 mm; lemmas 8-11.5 (14) mm; anthers 3.5-7 mm. 2n = 28.

Discussion

Ammophila breviligulata subsp. breviligulata grows on sand dunes and dry, sandy shores from around the Great Lakes to the Atlantic coast from Newfoundland to South Carolina and, as an introduction, on the west coast. Anthesis is from late July to September. It hybridizes with Calamagrostis canadensis on Grand Island, Michigan, and the adjacent mainland, to form xCalammophila don-hensonii Reznicek & Judz. The hybrid is morphologically intermediate between its parents. Most florets appear to be sterile; some appear normal. Discovery of a plant that appears to be a backcross to Calamagrostis canadensis supports the possibility that some of the hybrid seed is functional.

Selected References

None.

Lower Taxa

None.

"decumbent" is not a number.

... more about "Ammophila breviligulata subsp. breviligulata"
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2n chromosome quantity
28 +
Abaxial ligule presence
absent +
Abaxial ligule quantity
common +
Adaxial cell presence
absent +
Adaxial cell shape
bulliform +
Adaxial ligule architecture or pubescence or shape
ciliate +
Adaxial ligule presence
absent +
Adaxial ligule texture
membranous +  and scarious +
Anther quantity
3 +
Anther some measurement
0.35 cm3.5 mm <br />0.0035 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
Apex architecture or shape
entire +
Apex shape
mucronate +  and acute +
Arm cell presence
absent +
Auricle presence
absent +
Author
Mary E. Barkworth +
Authority
Fernald +
Awn atypical quantity
1 (?) +  and 3 (?) +
Awn course
straight +
Awn orientation
arising +
Awn position
subterminal +
Awn quantity
single +
Awn shape
bent +
Awn some measurement
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
Back shape
keeled +  and rounded +
Basal floret quantity
1 +  and 2 +
Base architecture
pseudopetiolate +  and branching +
Base arrangement
close +
Base fusion
free +
Base position
intravaginal +, extravaginal +, branching +  and basal +
Base size
swelling +
Base texture
hard +
Base width
thick +
Blade arrangement
parallel +
Blade arrangement or course or shape
linear +
Blade diameter
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
Blade length
15 cm150 mm <br />0.15 m <br /> (80 cm800 mm <br />0.8 m <br />) +
Blade prominence
not evident +
Blade shape
convolute +  and involute +
Blade shape or vernation
involute +
Blade width
0.4 cm4 mm <br />0.004 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
Branch arrangement
overlapping +
Branch orientation
ascending +
Branch shape
spikelike +
Callus development
developed +
Callus hair some measurement
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
Callus height or length or size
short +
Callus pubescence
pilose +
Central vein architecture
4-veined +  and 2-veined +
Central vein arrangement
close +
Common name
American beachgrass +  and Ammophile à ligule courte +
Culm architecture
not branching +
Culm architecture or arrangement or growth form
solitary +
Culm duration
annual +
Culm growth form
climbing +
Culm growth form or location
floating +
Culm orientation
erect +
Culm pubescence
glabrous +
Culm some measurement
50 cm500 mm <br />0.5 m <br /> (130 cm1,300 mm <br />1.3 m <br />) +
Culm texture
not woody +
Distal floret size
reduced +
Distribution
Conn. +, N.J. +, N.Y. +, Wash. +, Va. +, Del. +, Wis. +, N.H. +, N.C. +, Pa. +, R.I. +, B.C. +, N.B. +, Nfld. and Labr. +, N.S. +, Ont. +, P.E.I. +, Que. +, Mass. +, Maine +, Vt. +, Calif. +, Ill. +, Ind. +, Md. +, Ohio +, Minn. +, Mich. +, S.C. +  and Oreg. +
Embryo quantity
1/4 +  and 1/3 +
Endosperm texture
liquid +, soft +  and hard +
Filament shape
capillary +
Floret architecture
pistillate +  and staminate +
Floret arrangement
adjacent +
Floret length or size
sometimes longer +
Floret position or shape
distal +
Floret quantity
1 +
Floret reproduction
sterile +  and bisexual +
Floret shape
compressed +
Floret size
reduced +
Glume architecture or shape
awned +
Glume height or length or size
shorter +
Glume length or size
shorter or longer +
Glume position
subtending +
Glume presence
absent +
Glume quantity
2 +
Glume shape
acute +  and acuminate +
Glume size
subequal +
Glume some measurement
0.8 cm8 mm <br />0.008 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
Glume texture
papery +
Glume variability
exceeding the florets +  and equaling +
Hair shape
uncinate +
Hilum arrangement or course or shape
linear +
Hilum coloration or relief
punctate +
Hilum quantity
2/3 +
Hilum shape
Ovate (?) +
Illustration
Present +
Illustration copyright
Utah State University +
Illustrator
Linda Ann Vorobik +  and Hana Pazdírková +
Inflorescence architecture
compound +
Inflorescence density
dense +
Inflorescence position or structure subtype
terminal +
Inflorescence shape
cylindrical +
Internode architecture
hollow +
Internode presence
absent +
Layer presence
absent +
Leaf arrangement
distichous +
Leaf margin arrangement
Overlapping (?) +
Leaf position
basal +
Lemma architecture
3-5-veined +
Lemma architecture or shape
awned +
Lemma atypical some measurement
14 +
Lemma height or length or size
shorter +
Lemma length or size
longer +
Lemma pubescence or texture
chartaceous +
Lemma shape
rounded +, keeled +  and linear-lanceolate +
Lemma some measurement
0.8 cm8 mm <br />0.008 m <br /> (1.15 cm11.5 mm <br />0.0115 m <br />) +
Lemma texture
hardened +
Lemma variability
equaling +
Lemma width
somewhat thicker +
Ligule atypical some measurement
4.6 +
Ligule presence
absent +
Ligule pubescence
ciliolate +
Ligule shape
truncate +  and obtuse +
Ligule some measurement
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
Ligule texture
membranous +
Lodicule architecture
veined +
Lodicule architecture or pubescence or shape
ciliate +
Lodicule architecture or shape
truncate +
Lodicule fusion
free +
Lodicule prominence
inconspicuous +
Lodicule pubescence
glabrous +  and ciliate +
Lodicule quantity
2 +
Lodicule shape
not toothed +
Lodicule texture
membranous +
Lower glume architecture
1-veined +
Midrib architecture
simple +
Mucro some measurement
0 cm0 mm <br />0 m <br /> (0.02 cm0.2 mm <br />2.0e-4 m <br />) +
Node prominence
concealed +  and prominent +
Number of lower taxa
0 +
Other quantity
2 +  and 1 +
Ovary presence
absent +
Ovary pubescence
glabrous +
Palea development
well-developed +
Palea presence
absent +
Palea shape
2-keeled +
Palea size
minute +
Panicle atypical some measurement
9.5 cm95 mm <br />0.095 m <br /> (?) +
Panicle coloration
stramineous +
Panicle length
9cm +  and 40cm +
Panicle shape
spikelike +
Panicle size
reduced +
Panicle some measurement
13 cm130 mm <br />0.13 m <br /> (40 cm400 mm <br />0.4 m <br />) +
Panicle width
1 cm10 mm <br />0.01 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
Papilla presence
absent +
Pericarp arrangement
separating +
Pericarp condition or texture
dry +
Pericarp texture
dry +  and fleshy +
Pericarp width
thin +
Pseudopetiole development
not developed +
Pseudopetiole presence
absent +
Rachilla length
prolonged +
Rachilla pubescence
hairy +  and glabrous +
Rachis prominence
evident +
Reference
None +
Sheath architecture
open +
Sheath condition
closed +
Sheath length
open +
Source xml
https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V24/V24 1104.xml +
Special status
Endemic +
Spike architecture
ebracteate +
Spikelet architecture
pedicellate +
Spikelet arrangement
mixed +
Spikelet fixation
attached +
Spikelet quantity
1 +  and 60 +
Spikelet reproduction
viviparous +
Spikelet shape
compressed +
Spikelet some measurement
0.07 cm0.7 mm <br />7.0e-4 m <br /> (5 cm50 mm <br />0.05 m <br />) +
Stamen quantity
1 +  and 3 +
Starch-grain architecture
simple +  and compound +
Style-branch atypical quantity
4 +  and 1 +
Style-branch quantity
2 (?) +  and 3 (?) +
Style quantity
2 +
Subsidiary-cell architecture
parallel-sided +
Synonyms
Gramineae +
Taxon family
Poaceae +
Taxon name
Ammophila breviligulata subsp. breviligulata +
Taxon parent
Ammophila breviligulata +
Taxon rank
subspecies +
Terminal floret reproduction
sexual +
Tissue coloration
hyaline +
Tissue texture
membranous +
Upper glume architecture
3-veined +
Vein arrangement
parallel +  and converging +
Vein presence
absent +
Vein quantity
2 (?) +
Vein size
major +
Volume
Volume 24 +
Whole organism architecture
rhizomatous +
Whole organism arrangement or pubescence
tufted +
Whole organism duration
perennial +
Whole organism growth form
plant +
Whole organism growth form or habitat
aquatic +  and terrestrial +
X chromosome quantity
7 +