Arctophila fulva

(Trin.) Andersson
Common names: Pendant grass Arctophile fauve
Treatment appears in FNA Volume 24. Treatment on page 607.

Culms (5) 10-80 (100) cm. Ligules (1) 2-6 (8) mm; blades 2-23 cm long, 1-5 (10) mm wide. Panicles 3-20 cm long, (1.5) 3-11 cm wide. Spikelets 2.5-7 (8) mm. Glumes 1.5-4 (5) mm; lower glumes exceeded by the lowest floret; upper glumes shorter than to longer than the lowest floret; lemmas 2.5-4 mm; paleas (1) 1.8-4 mm; anthers 1.2-3 mm. Caryopses 1.5-2.2 mm. 2n = 42, 63.

Distribution

B.C., Greenland, Nfld. and Labr. (Nfld.), Man., N.W.T., Nunavut, Ont., Que., Yukon, Alaska

Discussion

Arctophila fulva grows as an emergent species in shallow, standing water, or along slow-moving streams, wet meadows, marshes, and saturated soils of low arctic and subarctic regions, where it often forms pure stands. It is one of the few grasses that develop aquatic leaves. Field observations indicate that under some environmental conditions, A. fulva can propagate vegetatively from detached stems that have over¬wintered (Aiken and Buck 2002). In the Flora region, it grows from Alaska through the Yukon, Northwest Territories, Nunavut, Ontario, Quebec, and Labrador to Greenland. Its range extends across Eurasia to arctic Scandinavia. It forms a sterile hybrid, xArctodupontia scleroclada (p. 605), with Dupontia fisheri. The hybrid differs from Arctophila fulva in having lemmas with truncate, lacerate to dentate apices, rather than obtuse, entire apices.

Selected References

None.

Lower Taxa

None.

"decumbent" is not a number.

... more about "Arctophila fulva"
membranous +  and scarious +
0.12 cm1.2 mm <br />0.0012 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
Jacques Cayouette +  and Stephen J. Darbyshire +
(Trin.) Andersson +
1 (?) +  and 3 (?) +
straight +
basal +  and terminal +
keeled +  and rounded +
pseudopetiolate +  and branching +
intravaginal +, extravaginal +, branching +  and basal +
swelling +
pinkish brown +
2 cm20 mm <br />0.02 m <br /> (23 cm230 mm <br />0.23 m <br />) +
not evident +
cross +, linear +  and narrowly lanceolate +
1mm;5mm +
ascending;pendulous +
spikelike +
glabrous +, pubescent to almost +  and pubescent +
Pendant grass +  and Arctophile fauve +
10 cm100 mm <br />0.1 m <br /> (80 cm800 mm <br />0.8 m <br />) +
not woody +
B.C. +, Greenland +, Nfld. and Labr. (Nfld.) +, Man. +, N.W.T. +, Nunavut +, Ont. +, Que. +, Yukon +  and Alaska +
1/4 +  and 1/3 +
liquid +, soft +  and hard +
capillary +
pistillate +  and staminate +
sometimes longer +
2 +  and 7 +
sterile +  and bisexual +
compressed +
reduced +
1-3(5)-veined +
shorter or longer +
subtending +
acute +  and obtuse +
subequal +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
membranous +  and subcoriaceous +
uncinate +
1/6 +  and 1/5 +
1-7(9)-veined +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
membranous +  and subcoriaceous +
lacerate +  and acute +
0.2 cm2 mm <br />0.002 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
membranous +
inconspicuous +
entire +  and toothed +
concealed +  and prominent +
2 +  and 1 +
well-developed +
2-keeled +
subequal +
0.18 cm1.8 mm <br />0.0018 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
3cm +  and 20cm +
spikelike +
3 cm30 mm <br />0.03 m <br /> (11 cm110 mm <br />0.11 m <br />) +
dry +  and fleshy +
1 +  and 60 +
compressed +
0.25 cm2.5 mm <br />0.0025 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
1 (?) +  and 3 (?) +
simple +  and compound +
2 (?) +  and 3 (?) +
Gramineae +
Arctophila fulva +
Arctophila +
species +
membranous +
conspicuously longer +
shorter than to longer than the lowest floret +
parallel +  and converging +
aquatic +  and terrestrial +