Paeonia Species
based on / copied from D. Y. Hong "Paeonies of the World" vol. 1-3 (2010, 2011, 2021)


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P. sterniana (H. R. Fletcher, 1959)

[Fletcher, H. R., J. Roy. Hort. Soc., vol. 84, 1959, p. 326-328, fig. 103]
First Description: P. sterniana (H. R. Fletcher, 1959)
Synonyms: P. emodi subsp. sterniana (Halda, 1997)

P. sterniana (Flower)
Photo: Juerg Plodeck (Basel, May 2023), © Copyright Juerg Plodeck 2023
[ click on image for full image ]
Plant: Ploidy: 2n=10
Growth Type: herbaceous / perennial
Height: 35-60cm
Roots: carrot-shaped, tap roots up to 2cm in diameter, more than 30cm long; caudex short, multi-branched, and thus many stems caespitose
others: stems glabrous throughout
Leaves: # segmentation: 20-30
others: lower leaves biternate; leaflets 9, all segmented;
leaf segments 20-30 in number,
4-12cm long, 1.5-3cm wide, often lobed; lobes acuminate at the apex
Flowers: Season: May to early June
# flowers/stem: solitary, terminal, but one or two axillary undeveloped (sterile) buds often present, rarely 2 on a stem
Bracts: involucrate bracts 2-4, leaf-like
Sepals: mostly 3, rarely 4, nearly orbicular, all or mostly caudate at the apex, green or purple,
1-2.3cm long, 0.8-2cm wide
Petals: obovate, 2.5-3cm long, 1.5-2cm wide
Flower Colour: white to pale rose
Filaments: yellow
Anthers: yellow
Disk: less than 1mm high, waved, green-yellow
others:  
Fruit: Season: August
# of Carpells: 2, less frequently 3
Carpell:  
Style / Stigma: styles less than 1mm long
stigmas red
Follicles / Ovary / Ovules: follicles ovoid, ca. 3cm long
Seeds: ovoid-oblong, black, lucid, 7-8mm long, ca. 5mm in diameter
Habitat: Location: growing in forests of thickets at an altitude of 2830-3500m
Soil:  
Geogr. Distr.: confined to SE Tibet of China
Countries: China
Common Names:  

P. sterniana (entire plant)
Photo: Juerg Plodeck (Basel, May 2023),
© Copyright Juerg Plodeck 2023
[ click on image for full image ]

P. sterniana (single leave from top)
Photo: Juerg Plodeck (Basel, May 2023),
© Copyright Juerg Plodeck 2023
[ click on image for full image ]

P. sterniana (Flower)
Photo: Juerg Plodeck (Basel, May 2023),
© Copyright Juerg Plodeck 2023
[ click on image for full image ]

P. sterniana (Fruit / Seeds)
Photo: Juerg Plodeck (Basel, May 2023),
© Copyright Juerg Plodeck 2023
[ click on image for full image ]

back to the Paeonia Species Names List