Epimedium flavum Stearn

Barrenwort (en)

Species

Angiosperms > Ranunculales > Berberidaceae > Epimedium

Characteristics

Herbs, 15-30 cm tall. Leaves basal and cauline, nearly leathery when mature, basal leaves mostly with 5 leaflets, sometimes 3, cauline leaves with 3 or 5 leaflets; leaflets ovate, to 4 × 3 cm, both surfaces glabrous, base cordate with lobes rounded and slightly diverging or separated by a narrow sinus, those of lateral leaflets moderately unequal, margin remotely spinose-serrate, apex acuminate. Flowering stem with 1 leaf or 2 leaves at same height or at different heights. Inflorescence simple, racemose, loosely few flowered (3-10-flowered), ca. 6 cm. Pedicel to 2 cm, with short glandular hairs. Flowers large, ca. 3 cm in diam. Outer sepals caducous; inner sepals spreading horizontally, pale sulfur-yellow, lanceolate, ca. 11 × 4 mm, apex obtuse. Petals pale sulfur-yellow, slightly longer than inner sepals; spur elongated, subulate, slightly curved, ca. 1.3 cm, expanded at base into a lamina ca. 8 mm high. Stamens included, ca. 3 mm; filaments pale sulfur-yellow, ca. 0.5 mm; anthers pale sulfur-yellow, ca. 2.5 mm. Fruit unknown. Fl. Apr, fr. unknown.
Life form perennial
Growth form herb
Growth support -
Foliage retention evergreen
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) 0.1 - 0.5
Mature height (meter) 0.13 - 0.4
Root system -
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 -
Soil texture -
Soil acidity 2-8
Soil nutriment -
Hardiness (USDA) 8-9

Usage

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

Cultivation

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

Distribution

Epimedium flavum world distribution map, present in China

Conservation status

Epimedium flavum threat status: Vulnerable

Identifiers

LSID urn:lsid:ipni.org:names:982651-1
WFO ID wfo-0000669990
COL ID 6G6KV
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Epimedium flavum