FNA: Cupressus goveniana vs. Cupressus arizonica

	Cupressus goveniana	Cupressus arizonica
	Gowen cypress, Mendocino cypress, Santa Cruz cypress	Arizona cypress, Arizona smooth cypress, cedro, cedro blanco, ciprés de Arizona, Cuyamaca cypress, Piute cypress
Habit	Shrubs or small trees usually to 10 m, but to 50 m under favorable conditions, or bearing cones at as little as 2 dm on shallow hardpan soils; crown globose to columnar, dense or sparse.	Trees to 23 m, shrubby where subject to fires; crown conic at first, broadly columnar with age, dense.
Bark	smooth or rough, fibrous.	smooth at first, remaining so or becoming rough, furrowed, fibrous.
Branchlets	decussate, 1–1.5 mm diam.	decussate, 1.3–2.3 mm diam.
Leaves	without abaxial gland or sometimes with embedded abaxial gland that does not produce drop of resin, not glaucous.	usually with conspicuous, pitlike, abaxial gland that produces drop of resin, often highly glaucous.
Pollen cones	3–4 × 1.5–2 mm; pollen sacs 3–6.	2–5 × 2 mm; pollen sacs mostly 4–6.
Seed(s)	cones globose, 1–2.5(–3) cm, grayish brown, not glaucous; scales 3–5 pairs, smooth, umbo nearly flat at maturity.	cones globose or oblong, mostly 2–3 cm, gray or brown, often glaucous at first; scales mostly 3–4 pairs, smooth or with scattered resin blisters, sometimes with erect conic umbos to 4 mm, especially on apical scales.
2n		= 22.

	Cupressus goveniana	Cupressus arizonica
Habitat	Coastal closed-cone pine forests, especially on sterile soils	Canyon bottoms, pinyon-juniper woodland, chaparral
Elevation	60–800 m (200–2600 ft)	750–2000 m (2500–6600 ft)
Distribution	CA [WildflowerSearch map]	AZ; CA; NM; TX; Mexico [WildflowerSearch map]
Discussion	Populations from the three regions of Cupressus goveniana —north coast, Santa Cruz Mountains, and Monterey Peninsula—differ in foliage and seed characters and have been treated as varieties or species; additional interpopulational variation occurs within these regions. Trees from Santa Cruz Mountain populations may have originated through hybidization with C. sargentii (E. Zavarin et al. 1971). The pygmy forests of this species and Pinus contorta Douglas ex Loudon on the shallow hardpan soils of coastal terraces of the Mendocino white plains are a remarkable example of phenotypic plasticity. (Discussion copyrighted by Flora of North America; reprinted with permission.)	Bark texture and foliage features have been used to distinguish geographic varieties or segregate species. Although bark texture may be consistent within populations, over the species as a whole there is complete intergradation between smooth and fibrous barks. Various forms are commonly cultivated and sometimes persistent in the southern United States. (Discussion copyrighted by Flora of North America; reprinted with permission.)
Source	FNA vol. 2.	FNA vol. 2.
Parent taxa	Cupressaceae > Cupressus	Cupressaceae > Cupressus
Sibling taxa	C. arizonica, C. bakeri, C. guadalupensis, C. macnabiana, C. macrocarpa, C. sargentii	C. bakeri, C. goveniana, C. guadalupensis, C. macnabiana, C. macrocarpa, C. sargentii
Synonyms	C. abramsiana, C. goveniana var. abramsiana, C. goveniana var. pigmaea, C. pigmaea	C. arizonica var. glabra, C. arizonica var. nevadensis, C. arizonica var. stephensonii, C. glabra, C. nevadensis, C. stephensonii
Name authority	Gordon: J. Hort. Soc. London 4: 295. (1849)	Greene: Bull. Torrey Bot. Club 9: 64. (1882)
Web links	Local floras: CA Local Web sites: CalFlora, CalPhotos WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search	Local Web sites: CalFlora, CalPhotos WildflowerSearch iNaturalist (observations) USDA Plants Database LBJ Wildflower Center SEINet Plants of the World Online Encyclopedia of Life Wikipedia Google Image Search

Cupressus arizonica

Gowen cypress, Mendocino cypress, Santa Cruz cypress

Arizona cypress, Arizona smooth cypress, cedro, cedro blanco, ciprés de Arizona, Cuyamaca cypress, Piute cypress

Habit

Shrubs or small trees usually to 10 m, but to 50 m under favorable conditions, or bearing cones at as little as 2 dm on shallow hardpan soils; crown globose to columnar, dense or sparse.

Trees to 23 m, shrubby where subject to fires; crown conic at first, broadly columnar with age, dense.

Bark

smooth or rough, fibrous.

smooth at first, remaining so or becoming rough, furrowed, fibrous.

Branchlets

decussate, 1–1.5 mm diam.

decussate, 1.3–2.3 mm diam.

Leaves

without abaxial gland or sometimes with embedded abaxial gland that does not produce drop of resin, not glaucous.

usually with conspicuous, pitlike, abaxial gland that produces drop of resin, often highly glaucous.

Pollen cones

3–4 × 1.5–2 mm;

pollen sacs 3–6.

2–5 × 2 mm;

pollen sacs mostly 4–6.

Seed(s)

cones globose, 1–2.5(–3) cm, grayish brown, not glaucous;

scales 3–5 pairs, smooth, umbo nearly flat at maturity.

cones globose or oblong, mostly 2–3 cm, gray or brown, often glaucous at first;

scales mostly 3–4 pairs, smooth or with scattered resin blisters, sometimes with erect conic umbos to 4 mm, especially on apical scales.

= 22.

Cupressus arizonica

Habitat

Coastal closed-cone pine forests, especially on sterile soils

Canyon bottoms, pinyon-juniper woodland, chaparral

Elevation

60–800 m (200–2600 ft)

750–2000 m (2500–6600 ft)

Distribution

[WildflowerSearch map]

AZ; CA; NM; TX; Mexico

[WildflowerSearch map]

Discussion

Populations from the three regions of Cupressus goveniana —north coast, Santa Cruz Mountains, and Monterey Peninsula—differ in foliage and seed characters and have been treated as varieties or species; additional interpopulational variation occurs within these regions. Trees from Santa Cruz Mountain populations may have originated through hybidization with C. sargentii (E. Zavarin et al. 1971). The pygmy forests of this species and Pinus contorta Douglas ex Loudon on the shallow hardpan soils of coastal terraces of the Mendocino white plains are a remarkable example of phenotypic plasticity.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Bark texture and foliage features have been used to distinguish geographic varieties or segregate species. Although bark texture may be consistent within populations, over the species as a whole there is complete intergradation between smooth and fibrous barks. Various forms are commonly cultivated and sometimes persistent in the southern United States.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source

FNA vol. 2.

Parent taxa

Cupressaceae > Cupressus

Sibling taxa

C. arizonica, C. bakeri, C. guadalupensis, C. macnabiana, C. macrocarpa, C. sargentii

C. bakeri, C. goveniana, C. guadalupensis, C. macnabiana, C. macrocarpa, C. sargentii

Synonyms

C. abramsiana, C. goveniana var. abramsiana, C. goveniana var. pigmaea, C. pigmaea

C. arizonica var. glabra, C. arizonica var. nevadensis, C. arizonica var. stephensonii, C. glabra, C. nevadensis, C. stephensonii

Name authority

Gordon: J. Hort. Soc. London 4: 295. (1849)

Greene: Bull. Torrey Bot. Club 9: 64. (1882)

Web links

Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).

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Cupressus goveniana

Cupressus arizonica

Cupressus goveniana

Cupressus arizonica