Ammophila breviligulata subsp. champlainensis

(F. Seym.) P.J. Walker, C.A. Paris & Barrington ex Barkworth
Common names: Champlain beachgrass
Synonyms: Ammophila champlainensis
Treatment appears in FNA Volume 24. Treatment on page 777.

Flag leaf-blades 8-22 cm. Panicles 9-17 cm. Glumes 8-11.5 mm; lemmas 8-10 mm; anthers 3-4.5 mm. 2n = unknown.

Discussion

Ammophila breviligulata subsp. champlainensis differs from subsp. breviligulata primarily in its earlier anthesis, from June to early July rather than late July to September. It also tends to be smaller, but the two subspecies overlap in all their morphological characteristics.

Selected References

None.

Lower Taxa

None.

"decumbent" is not a number.

membranous +  and scarious +
0.3 cm3 mm <br />0.003 m <br /> (0.45 cm4.5 mm <br />0.0045 m <br />) +
Mucronate (?) +  and Acute (?) +
Mary E. Barkworth +
(F. Seym.) P.J. Walker, C.A. Paris & Barrington ex Barkworth +
1 (?) +  and 3 (?) +
straight +
subterminal +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
keeled +  and rounded +
pseudopetiolate +  and branching +
intravaginal +, extravaginal +, branching +  and basal +
swelling +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.25 cm2.5 mm <br />0.0025 m <br />) +
15 cm150 mm <br />0.15 m <br /> (80 cm800 mm <br />0.8 m <br />) +
not evident +
convolute +  and involute +
4mm;8mm +
spikelike +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
4-veined +  and 2-veined +
Champlain beachgrass +
not branching +
50 cm500 mm <br />0.5 m <br /> (130 cm1,300 mm <br />1.3 m <br />) +
not woody +
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. +
1/4 +  and 1/3 +
liquid +, soft +  and hard +
capillary +
pistillate +  and staminate +
sometimes longer +
sterile +  and bisexual +
compressed +
reduced +
shorter or longer +
subtending +
acute +  and acuminate +
subequal +
0.8 cm8 mm <br />0.008 m <br /> (1.15 cm11.5 mm <br />0.0115 m <br />) +
exceeding the florets +  and equaling +
uncinate +
rounded +, keeled +  and linear-lanceolate +
0.8 cm8 mm <br />0.008 m <br /> (1 cm10 mm <br />0.01 m <br />) +
somewhat thicker +
truncate +  and obtuse +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
membranous +
inconspicuous +
glabrous +  and ciliate +
not toothed +
0 cm0 mm <br />0 m <br /> (0.02 cm0.2 mm <br />2.0e-4 m <br />) +
concealed +  and prominent +
2 +  and 1 +
well-developed +
2-keeled +
9cm +  and 40cm +
spikelike +
9 cm90 mm <br />0.09 m <br /> (17 cm170 mm <br />0.17 m <br />) +
1 cm10 mm <br />0.01 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
dry +  and fleshy +
hairy +  and glabrous +
1 +  and 60 +
compressed +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (5 cm50 mm <br />0.05 m <br />) +
1 (?) +  and 3 (?) +
simple +  and compound +
2 (?) +  and 3 (?) +
Ammophila champlainensis +
Ammophila breviligulata subsp. champlainensis +
Ammophila breviligulata +
subspecies +
membranous +
parallel +  and converging +
aquatic +  and terrestrial +