Polytrichum commune var. commune

Synonyms: Polytrichum commune var. uliginosum
Treatment appears in FNA Volume 27. Treatment on page 135.

Plants highly variable in size and habit but usually rather tall and robust. Stems (2–) 5–10 (–70) cm. Leaves loosely imbricate to rather distant; sheath clasping the stem and usually plainly visible wet or dry; blade typically divergent and sharply toothed to the base; marginal cells of lamellae in section broader than those beneath, retuse to distinctly notched, with prominent knobs; perichaetial leaves not markedly longer than the foliage leaves, ending in a short, roughened spinulose tip. Capsule short-rectangular.


Habitat: Moist organic soil in wet habitats, pastures, old fields, and meadows, peatlands, margins of bogs or swamps, often covering extensive areas, low to moderate elevations, widespread in the boreal forest, rare north of the tree line and absent from the high Arctic (D. G. Long 1985)

Distribution

V27 165-distribution-map.gif

Greenland, Alta., B.C., Man., N.B., Nfld. and Labr., N.W.T., N.S., Ont., P.E.I., Que., Sask., Yukon, Alaska, Ark., Calif., Colo., Conn., Del., Fla., Ga., Idaho, Ill., Ind., Iowa, Kans., Ky., La., Maine, Md., Mass., Mich., Minn., Miss., Mo., Mont., Nebr., N.H., N.J., N.Y., N.C., Ohio, Okla., Oreg., Pa., R.I., S.C., S.Dak., Tenn., Tex., Utah, Vt., Va., Wash., W.Va., Wis., Wyo., n, c Europe, n, e Asia, n Africa, Atlantic Islands (Macaronesia), Pacific Islands (Hawaii), Pacific Islands (New Zealand), Australia

Discussion

Selected References

None.

Lower Taxa

None.

"um" is not declared as a valid unit of measurement for this property. "um" is not declared as a valid unit of measurement for this property."broader" is not a number.

prominent +
Gary L. Smith Merrill +
Hedwig +
weakly-developed +
toothed +
reduced +
broadened +
overlapping +
dioicous +  and sexual +
sparsely ciliate;smooth +
golden yellow;brownish +
cucullate +
brown +  and dark reddish-brown +
inclined;horizontal +
short-rectangular +
0.3 cm3 mm <br />0.003 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
long-excurrent +  and excurrent +
prolonged +
roughened to almost +
toothed +
undifferentiated +
Greenland +, Alta. +, B.C. +, Man. +, N.B. +, Nfld. and Labr. +, N.W.T. +, N.S. +, Ont. +, P.E.I. +, Que. +, Sask. +, Yukon +, Alaska +, Ark. +, Calif. +, Colo. +, Conn. +, Del. +, Fla. +, Ga. +, Idaho +, Ill. +, Ind. +, Iowa +, Kans. +, Ky. +, La. +, Maine +, Md. +, Mass. +, Mich. +, Minn. +, Miss. +, Mo. +, Mont. +, Nebr. +, N.H. +, N.J. +, N.Y. +, N.C. +, Ohio +, Okla. +, Oreg. +, Pa. +, R.I. +, S.C. +, S.Dak. +, Tenn. +, Tex. +, Utah +, Vt. +, Va. +, Wash. +, W.Va. +, Wis. +, Wyo. +, n +, c Europe +, e Asia +, n Africa +, Atlantic Islands (Macaronesia) +, Pacific Islands (Hawaii) +, Pacific Islands (New Zealand) +  and Australia +
bulging-mammillose +
scabrous +, mammillose +  and smooth +
Moist organic soil in wet habitats, pasturMoist organic soil in wet habitats, pastures, old fields, and meadows, peatlands, margins of bogs or swamps, often covering extensive areas, low to moderate elevations, widespread in the boreal forest, rare north of the tree line and absent from the high Arctic (D. G. Long 1985)ent from the high Arctic (D. G. Long 1985) +
closely-spaced +
photosynthetic +
5 +  and 9 +
crenulate +
distant +, imbricate to rather +  and imbricate +
0.8 cm8 mm <br />0.008 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
flexuose +
0.6 cm6 mm <br />0.006 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
membranous +
cuticular-papillose +  and smooth +
denticulate +  and subentire +
shape +  and size +
dioicous +  and sexual +
retuse;deeply notched +
more typically enlarged and wider +
extensive +
pigmented +  and pale +
250 cm2,500 mm <br />2.5 m <br /> (?) +
single +  and 64 +
slit-like +  and circular +
Sp. Musc. Frond., +
underground +
differentiated +
yellowish +  and reddish-brown +
5 cm50 mm <br />0.05 m <br /> (9 cm90 mm <br />0.09 m <br />) +
scarious-margined +
elongate-rectangular +  and linear +
involute-tubular;oblong;elliptic +
differentiated +
leafy +, bracteate +  and simple +
dry +, wet +  and visible +
stiffly erect +  and decumbent +
5 cm50 mm <br />0.05 m <br /> (10 cm100 mm <br />0.1 m <br />) +
Polytrichum commune var. uliginosum +
Polytrichum commune var. commune +
Polytrichum commune +
variety +
acuminate +
unjointed +
loose +  and compact +
dark green +  and brownish +