Plant: |
Ploidy: |
2n=10 |
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Growth Type: |
tree / shrub |
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Height: |
up to 180cm |
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Roots: |
cylindrical, attenuate downwards |
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others: |
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Leaves: |
# segmentation: |
17-33 |
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others: |
lower leaves ternate-pinnate, ternate-bipinnate or biternate-pinnate,
leaflets 17-33, lanceolate to ovate-lanceolate and mostly entire, or ovate to ovate-orbicular and mostly lobed,
2-11cm long, 1.5-4.5cm wide, villose along veins beneath, truncate to cuneate at the base, acute or acuminate at the apex |
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Flowers: |
Season: |
late April to May |
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# flowers/stem: |
solitary, terminal |
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Bracts: |
involucrate bracts 3-4, leaf-like |
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Sepals: |
4-7, ovate-lanceolate, ovate-orbicular or orbicular, all caudate at the apex |
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Petals: |
8-13, obovate, white or rarely red, always with a large and dark purple blotch at the base,
5-9cm long, 4-7cm wide |
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Flower Colour: |
white or rarely red, always with a large and dark purple blotch at the base |
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Filaments: |
yellow |
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Anthers: |
yellow |
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Disk: |
entirely enveloping carpels, pale yellow, leathery, dentate or lobed at the apex |
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others: |
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Fruit: |
Season: |
late july to August |
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# of Carpells: |
5 |
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Carpell: |
densely tomentose |
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Style / Stigma: |
styles 0.5-2mm long, tomentose
stigmas pale yellow |
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Follicles / Ovary / Ovules: |
follicles oblong, densely yellow tomentose, ca. 3cm long |
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Seeds: |
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Habitat: |
Location: |
growing usually in deviduous forests in limestone areas at an altitude of 850-2800m |
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Soil: |
in limestone areas |
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Geogr. Distr.: |
endemic to China: SE Gansu, W Henan, W Hubei, Ningxia, Shaanxi and N Sichuan |
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Countries: |
China |
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Common Names: |
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Rock's peony
tree peony |
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