Juniperus communis var. depressa

Pursh

Fl. Amer. Sept. 2: 646. 1814.

IllustratedEndemic
Synonyms: Juniperus communis subsp. depressa (Pursh) Franco
Treatment appears in FNA Volume 2.

Shrubs prostrate or low with ascending branchlet tips (occasionally spreading shrubs to 3 m, rarely small trees to 10 m). Leaves upturned, to 15 × 1.6 mm, rarely spreading, linear, glaucous stomatal band about as wide as each green marginal band, apex acute and mucronate to acuminate. Seed-cones 6–9 mm, shorter than leaves. 2n = 22.


Habitat: Rocky soil, slopes, and summits
Elevation: 0–2800 m

Distribution

Alta., B.C., Man., N.B., Nfld. and Labr. (Nfld.), N.W.T., N.S., Ont., P.E.I., Que., Sask., Yukon, Alaska, Ariz., Calif., Colo., Conn., Ga., Idaho, Ill., Ind., Maine, Mass., Mich., Minn., Mont., Nev., N.H., N.Mex., N.Y., N.C., N.Dak., Ohio, Oreg., Pa., R.I., S.C., S.Dak., Utah, Vt., Va., Wash., Wis., Wyo.

Discussion

In the flora, larger individuals of this variety (to 10 m) have been misidentified as var. communis.

Selected References

None.

Lower Taxa

None.

not +  and visible +
Robert P. Adams +
long-lived +
exfoliating +
ascending;spreading +
inconspicuous +  and undifferentiated +
0.6 cm6 mm <br />0.006 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
globose +  and ovoid +
depressed +
Alta. +, B.C. +, Man. +, N.B. +, Nfld. and Labr. (Nfld.) +, N.W.T. +, N.S. +, Ont. +, P.E.I. +, Que. +, Sask. +, Yukon +, Alaska +, Ariz. +, Calif. +, Colo. +, Conn. +, Ga. +, Idaho +, Ill. +, Ind. +, Maine +, Mass. +, Mich. +, Minn. +, Mont. +, Nev. +, N.H. +, N.Mex. +, N.Y. +, N.C. +, N.Dak. +, Ohio +, Oreg. +, Pa. +, R.I. +, S.C. +, S.Dak. +, Utah +, Vt. +, Va. +, Wash. +, Wis. +  and Wyo. +
0–2800 m +
Rocky soil, slopes, and summits +
decurrent +  and scale-like +
petioled +, sessile +, twisted +  and simple +
divergent +  and opposite +
green but sometimes appearing silver +
persisting +
0mm +  and 15mm +
3 (?) +  and 5 (?) +
subulate +
0 cm0 mm <br />0 m <br /> (0.16 cm1.6 mm <br />0.0016 m <br />) +
0 cm0 mm <br />0 m <br /> (1 cm10 mm <br />0.01 m <br />) +
spheric;oblong +
0 cm0 mm <br />0 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Fl. Amer. Sept. +
fibrous;woody +
peltate +  and complex +
cuneate +  and oblong +
fleshy +  and woody +
overlapping +
persistent +
coalesced +
fibrous +  and obscurely woody +
1 +  and 2 +
2 +  and 3 +
round +  and faceted +
Illustrated +  and Endemic +
flattened +
Juniperus communis subsp. depressa +
Juniperus communis var. depressa +
Juniperus communis +
variety +
flattened +, angled +  and terete +
upright +  and decumbent +
asymmetric +  and symmetric +