Juniperus pinchotii

Sudworth

Forest. Irrig. 10: 204. 1905.

Common names: Pinchot juniper redberry juniper
Synonyms: Juniperus erythrocarpa Cory
Treatment appears in FNA Volume 2.

Shrubs or shrubby trees dioecious, to 6 m, usually multistemmed; crown flattened-globose to irregular. Bark ashy gray to brown, exfoliating in long strips, that of small branchlets (5–10 mm diam.) smooth, that of larger branchlets exfoliating in strips or sometimes in flakes. Branches spreading to ascending; branchlets erect, 3–4-sided in cross-section, ca. 2/3 as wide as length of scalelike leaves. Leaves yellow-green, abaxial glands elliptic to elongate, many with an evident white crystalline exudate, margins denticulate (at 20×); whip leaves 4–6 mm, not glaucous adaxially; scalelike leaves 1–2 mm, not overlapping or overlapping by not more than 1/5 their length, keeled, apex acute, spreading. Seed-cones maturing in 1 year, of 1 size, with straight peduncles, globose to ovoid, 6–8 (–10) mm, copper to copper-red, not glaucous, fleshy and sweet, not resinous, with 1 (–2) seeds. Seeds 4–5 mm.


Habitat: Gravelly soils on rolling hills and in ravines, limestone, gypsum
Elevation: 300–1000(–1700) m

Distribution

V2 415-distribution-map.gif

N.Mex., Okla., Tex., Mexico

Discussion

Pinchot juniper hybridizes with Juniperus coahuilensis (R. P. Adams and J. R. Kistler 1991) but not with J. ashei (R. P. Adams 1977) or J. monosperma (R. P. Adams 1975). The type specimen of J. erythrocarpa is merely an individual with brighter red seed cones.

Selected References

None.

Lower Taxa

None.

... more about "Juniperus pinchotii"
not +  and visible +
elliptic +  and elongate +
Robert P. Adams +
Sudworth +
long-lived +
ashy gray +  and brown +
exfoliating +
spreading;ascending +
angled +  and terete +
inconspicuous +  and undifferentiated +
Pinchot juniper +  and redberry juniper +
0.8 cm8 mm <br />0.008 m <br /> (1 cm10 mm <br />0.01 m <br />) +
not resinous +
copper +  and copper-red +
0.6 cm6 mm <br />0.006 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
globose +  and ovoid +
flattened-globose +
N.Mex. +, Okla. +, Tex. +  and Mexico +
300–1000(–1700) m +
white crystalline +
Gravelly soils on rolling hills and in ravines, limestone, gypsum +
decurrent +  and scale-like +
petioled +, sessile +, twisted +  and simple +
overlapping +  and not overlapping +
yellow-green +
persisting +
not /5 +  and not 1 +
3 (?) +  and 5 (?) +
keeled +  and scale-like +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
0 cm0 mm <br />0 m <br /> (1 cm10 mm <br />0.01 m <br />) +
denticulate +
spheric;oblong +
0 cm0 mm <br />0 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Forest. Irrig. +
fibrous;woody +
peltate +  and complex +
cuneate +  and oblong +
fleshy +  and woody +
overlapping +
persistent +
coalesced +
fibrous +  and obscurely woody +
1 +  and 2 +
round +  and faceted +
flattened +
Juniperus erythrocarpa +
Juniperus pinchotii +
Juniperus sect. Sabina +
species +
flattened +, angled +  and terete +
tree +, shrubby +  and shrub +
upright +  and decumbent +
asymmetric +  and symmetric +