Cypripedium formosanum Hayata

Formosa's lady's slipper (en)

Species

Angiosperms > Asparagales > Orchidaceae > Cypripedium

Characteristics

Plants 30-40 cm tall, with a relatively slender, creeping, often branched rhizome. Stem erect, glabrous or puberulent, with several sheaths in lower part and 2 subopposite leaves above. Leaf blade flabellate, 10-13 × 8-11 cm, both surfaces sparsely puberulent or adaxial surface glabrous, with many radiating veins reaching margin of apical half, base cuneate, margin undulate, minutely ciliate, apex mucronate. Inflorescence terminal, with 1 flower; peduncle nearly glabrous or sparsely pubescent; floral bracts foliaceous, ovate-lanceolate, 2.2-3 × 1-1.2 cm, sparsely puberulent, apex acute; pedicel and ovary 1.8-2 cm, densely pubescent. Flowers pendulous, white or pinkish; sepals and petals spotted with purplish red at base; lip ± with purplish red short stripes and spots. Dorsal sepal often curving forward over lip, narrowly ovate or ovate-lanceolate, 4.5-5 × 1.6-2 cm, slightly pubescent toward base, apex acute or shortly acuminate; synsepal elliptic-ovate, 4.5-5 × 2.5-3 cm, slightly hairy toward base, apex shallowly 2-lobed. Petals oblong-lanceolate, 4.5-5 × 1.2-1.8 cm, adaxial base villous, apex acuminate or acute; lip pendulous, pouched, obovoid or ellipsoid, 4-6 × 3.5-4 cm, slightly grooved-margined around mouth, inner bottom hairy. Staminode ovate-triangular or ovate-sagittate, ca. 10 × 6-7 mm. Fl. Apr-May. 2n = 20*, 30*.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.3 - 0.4
Root system rhizome
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light 4-6
Soil humidity 5-7
Soil texture -
Soil acidity 4-8
Soil nutriment -
Hardiness (USDA) 9-10

Usage

Uses medicinal
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by divisions.
Mode divisions
Germination duration (days) 30 - 365
Germination temperacture (C°) 18 - 21
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Cypripedium formosanum unspecified picture

Distribution

Cypripedium formosanum world distribution map, present in China and Taiwan, Province of China

Conservation status

Cypripedium formosanum threat status: Endangered

Identifiers

LSID urn:lsid:ipni.org:names:625746-1
WFO ID wfo-0000935358
COL ID 33J5P
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Cypripedium formosanum Cypripedium japonicum var. formosanum