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MacNab cypress

cypress family

Habit Trees to 10 m; crown broadly conical. Trees or shrubs evergreen, monoecious (but usually dioecious in Juniperus).
Bark

smooth to fibrous and furrowed.

Leaves

ovate, approximately 1.5 mm long, dark green, occasionally glaucous, with conspicuous pit-like abaxial gland; resin copious and sticky, sometimes glaucous.

needlelike; awl-like, or scale-like; simple, alternate or opposite, 2- or 4-ranked or in whorls of 3.

Pollen cones

15–25 mm long.

maturing annually; solitary; terminal.

Seeds

2–5 mm; light to medium brown;

wing less than width of the body.

1–many per scale, not winged.

Trunks

to 1 m in diameter;

bark rough, furrowed, fibrous;

branchlets comb-like; to 1 mm in diameter.

Seed cones

globose, 1.5–2.5 cm long, brown to gray, not glaucous;

scales 6–8;

umbos present, 2–4 mm long.

woody or berry-like; terminal, scales of woody cones imbricate or peltate.

Hesperocyparis macnabiana

Cupressaceae

Distribution
[WildflowerSearch map]
[BONAP county map]
Discussion

Lower elevation woodland, often on serpentine substrates. 300–1400 m. Sisk. CA. Native.

While long rumored to occur in Oregon, it was not until 2010 that botanist Frank Callahan located and documented this species in a remote area of Jackson County.

Temperate regions worldwide. Approximately 25 genera; 7 genera treated in Flora.

Although some authorities segregate Taxodiaceae from Cupressaceae, most current researchers unite the families. Among the conifers, Cupressaceae has the widest distribution, occurring on all continents except Antarctica.

Source Flora of Oregon, volume 1, page 111
Stephen Meyers
Flora of Oregon, volume 1, page 108
Sibling taxa
H. bakeri, H. macnabiana, H. macrocarpa, H. sargentii
Synonyms Callitropsis macnabiana, Cupressus macnabiana
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