Cupressus arizonica and its relatives!!

12 years ago

Hi guys, been out for quite a while now... not that I forgot about conifers, the collection is still growing..

Now I'm trying to collect most of California Cupressus natives... Here is my question, once upon a time, there was only C. arizonica, but now several species have been separated or proved to be different... which are those. Some that I know:

C. glabra

C. montana

C. nevadensis

C. stephensonnii

C. revealiana???

C. stephensonnii

Thanks

osprey

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Comments (8)

scotjute Z8
12 years ago
And C. Arizonica is being applied to the rough-bark version of Arizona Cypress. This is only native to sw Arizona and Big Bend National Park Tx. in the United States. Does not make it to California that I have seen documented. Seems like it should be in New Mexico but have not seen it documented.
georgeinbandonoregon
12 years ago
the current arrangement (at least in john grimshaws book "new trees") is to regard glabra, stephensonii, montana, and nevadensis as varieties of c. arizonica (never heard of the other plant you mentioned BTW and FWIW). of course don't know if the western cypressus are still cypresses (sensu latu) or now maybe "hesperocyparis"---sensu stricta (excuse the spelling please)????
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Resin, I have Aurea and Viridis of nootkatensis, I bought them as Chamaecyparis 25 years ago. Both are under 2 meters, they frost back year to year. I also selected some Chamaecyparis for hard frosts and long summer droughts, meanwhile planted over 50-100 cultivars. Patula and Lane are very good, Stewarti tries to survive, the selections of Barabits usually take better the heat and drought air as western selections. You know, in our continental climate its not enough, if a plant looks like good, they also must be alive. Finally Cupressocyparis is also on the bad side, I'm simply unable to keep them alive. If they survive the midwinter frosts, the late April-May frosts kill them - even -5 is enough, if the plant is in work again. Junipers are very happy at me, also the "semidesert" selections from Midasia or the dry USA. Since 15 years I plant only pinaceae, specially abies and cedrus (except deodara). In other areas of the country in Z6 or even Z7 - Cupressus looks like very happy. A friend of mine has one of the greatest Cupressus collection in Europe, and there the cypresses live quite good. He thinks, that our country needs more mexican and USA cypresses, the wet european countries need mostly himalaian cypresses. They use more water as the semidesert specieses, most of them live in not hot high areas, and up to Z6 they have usually no great frost problems. Zsolt
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pineresin
12 years ago
"This is only native to sw Arizona and Big Bend National Park Tx. in the United States"

Also fairly widely in northern Mexico, like this one near the Coahuila - Nuevo Leon border:
{{gwi:684179}}

"the current arrangement (at least in john grimshaws book "new trees")"

Unfortunately, Grimshaw is out of date there; Osprey's list is correct (apart from a typo in C. stephensonii ;-), they're all separate species now, and not all each other's closest relatives, either.

"of course don't know if the western cypressus are still cypresses (sensu latu) or now maybe "hesperocyparis"---"

Best all treated within Cupressus as a single genus (see e.g. Christenhusz et al. 2011. A new classification and linear sequence of extant gymnosperms. Phytotaxa 19:55-70).

Resin
georgeinbandonoregon
12 years ago
how sad about how quickly Mr. Grimshaw (or at least the sources he followed) became obsolete---how foolish it was for me to "trust" him. oh well, such is the pace of taxonomic progress....
ospreynn
Original Author
12 years ago
Thank you guys, I have C. arizonica from Arizona and also from Sierra Madre Oriental. I'll plant them next week, one next to the other to see the difference. Both are the same age...
So, is revelealiana a species or just plain stephensonii? Also, you mention they are not closest relatives.. are they now consider very different?
George, I've seen all kind of names to this species, that is why I decided to ask here. Most just consider them as C. arizonica, even C. glabra.
scotjute, I have yet to see one C. arizonica in NM... I'm sure they may be some in the Gilas....

osprey
shastensis
12 years ago
Cupressus revealiana is almost certainly a separate species, no longer treated as stephensonii. I have only seen it in UC DAVIS arboretum, but it is easily distinguishable from stephensonii - it has smaller cones and the cones are attached to individual shoots that are about an inch or less long. It is only known from a small area off of hwy 3, which travels south east from Ensenada in Baja California. I was hoping tp make it there when I was in Baja in feb but was told the area is much too dangerous (lots of kidnappings).
blue_yew
12 years ago
I have

c abramsiana
c goveniana
c macnabiana
c macrocarpa from seed collected in CA
georgeinbandonoregon
12 years ago
Shastensis, are you refering to the various cypress that are planted along the lake/large pond in the mexican section planting or the ones on the other side of the pathway in the same section??? have never seen any signs on any of the cypresses----either i'm blind or they have been removed/stolen assuming they were ever there in the first place.

Cupressus arizonica and its relatives!!

Comments (8)

scotjute Z8

georgeinbandonoregon

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Cupressus arizonica and its relatives!!

Comments (8)

scotjute Z8

georgeinbandonoregon

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pineresin

georgeinbandonoregon

ospreynnOriginal Author

shastensis

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ospreynn
Original Author