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Graveyard Cypress - Cupressus funebris
Family Cupressaceae – Redwoods,
Cypress, Arborvitae
This evergreen shrub is also commonly called Graveyard Cypress,
Mourning Cypress, or Chinese Weeping Cypress. It is native to
China, and hardy to USDA Zone 8.
Sometimes used in herbal therapy, flavanoids contained in tea
brewed from the funeral cypress has been implicated in cases of
acute kidney and liver damage.
[3]
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This funeral cypress is located at the Morton Arboretum
in Lisle, Illinois
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柏木 bai mu
Chamaecyparis funebris (Endlicher) Franco;
Cupressus funebris var. gracilis
Carriere. Trees to 35 m tall; trunk to 2 m
d.b.h.; branchlets arranged in a plane,
pendulous, green, slender, flattened, ca. 1 mm
wide. Leaves densely appressed, scalelike,
dimorphic, 1-1.5 mm, apex sharply pointed;
facial pairs with a linear abaxial gland;
lateral pairs folded face-to-face, overlapping
basal part of facial pairs, ridged abaxially.
Pollen cones ellipsoid or ovoid, 2.5-5 mm;
microsporophylls 10-14. Seed cones dark brown
when ripe, globose, 0.8-1.5 cm in diam.; cone
scales 6-8(-12), 5-angular, each fertile scale
with 3-5(or 6) seeds. Seeds light brown,
lustrous, obovate-rhombic or suborbicular,
flattened, 2.5-3.5 mm. Cotyledons 2. Pollination
Mar-May, seed maturity May-Jun. Native: (found
primarily) Below 2000 m. Anhui, Fujian, Gansu, N
Guangdong, N Guangxi, E Guizhou, Henan, W Hubei,
Hunan, Jiangxi, Shaanxi, Sichuan, Yunnan,
Zhejiang; also widely cultivated in South China.
[2]
One study showed funeral cypress to be one of
three principle constituents (along with
Pinus massoniana and Cunninghamia
lanceolata) of the main coniferous forests
at low elevations of the Three Gorges Reservoir
area of China. It was found the shrub and herb
layers dominant over the tree layer in these
areas.
[4]
Essential oils extracted from the leaves of
C. funebris have been shown to be
repellent and toxic in a fumigation assay
against adult Liposcelis bostrychophila
Badonnel. The funeral cypress proved most
effective of 6 plants tested. The toxicity of
the plant oils was enhanced significantly by a
controlled atmosphere of 12% CO2 + 9% O2,
and 10% CO2 + 5% O2, and balanced N2.
[5]
Often classified in Chamaecyparis on
account of its flattened foliage sprays and
relatively few seeds in small cones; however, it
is here placed in Cupressus because of
its developmental characters (cones maturing in
2nd year) and chemical composition of
biflavones.
[2]

"Worldwide use of herbal therapy
has increased dramatically in recent
years. Most herbal therapies were
not regulated as medicines, and
their adverse effects often were
underreported. We report a patient
who developed acute renal failure,
acute hepatic failure, autoimmune
hemolytic anemia, and
thrombocytopenia after oral intake
of hot-water extract of Cupressus
funebris Endl (Mourning
Cypress), which is rich in
flavonoids. Her renal biopsy showed
acute tubular necrosis, interstitial
nephritis, and hemoglobin casts. The
clinical course and pathological
findings were consistent with
flavonoid-induced acute nephropathy.
We emphasize that flavonoids are not
harmless and may induce acute
life-threatening renal damage."
[3]
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Common names:
- Chinese weeping
chamaecyparis (Source:
Phytol Mem 8:55 as Chamaecyparis
funebris)
- Chinese
weeping-cypress (Source:
HerbSpices as Chamaecyparis
funebris)
- mourning-cypress (Source:
World Econ Pl )
- bai mu (Source:
F ChinaEng ) [Chinese]
- Trauer-Zypresse (Source:
Zander ed17 ) [German]
[1]
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Economic importance:
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- Native:
- ASIA-TEMPERATE
China: China - Anhui, Fujian, Gansu,
Guangdong [n.], Guangxi [n.],
Guizhou [e.], Henan, Hubei [w.],
Hunan, Jiangxi, Shaanxi, Sichuan,
Yunnan, Zhejiang
[1]
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Cupressus funebris, Kyneton Botanic Gardens,
Victoria, Australia.
Photo:
Melburnian |
References:
1.
USDA, ARS, National Genetic Resources Program.
Germplasm Resources Information Network - (GRIN)
National Germplasm Resources Laboratory, Beltsville, MD
2.
Flora of China, www.efloras.org,
Cupressus funebris Endlicher, Syn. Conif. 58.
1847.
3. Jia-Jung Lee and Hung-Chun Chen, “Flavonoid-induced
acute nephropathy by Cupressus funebris Endl (Mourning
Cypress),” American
journal of kidney diseases : the official journal of the
National Kidney Foundation 48, no. 5 (November
2006): e81-5.
4. Ruimei Cheng and Wenfa Xao, “[Biodiversity
of main coniferous forests at low elevation of Three
Gorges Reservoir area],”
Ying yong sheng tai xue
bao = The journal of applied ecology / Zhongguo sheng
tai xue xue hui, Zhongguo ke xue yuan Shenyang ying yong
sheng tai yan jiu suo zhu ban 16, no. 9
(September 2005): 1791-4.
5. J J Wang et al., “Toxic
effects of six plant oils alone and in combination with
controlled atmosphere on Liposcelis bostrychophila
(Psocoptera: Liposcelididae),”
Journal of economic
entomology 94, no. 5 (October 2001): 1296-301.
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