Primula helodoxa Balf.F.

Species

Angiosperms > Ericales > Primulaceae > Primula

Characteristics

Herbs perennial. Leaves forming a rosette; petiole 1/4--1/2 as long as leaf blade, broadly winged; leaf blade broadly oblanceolate to obovate-oblong, 10--15 X 2--4 cm, tapering at base, efarinose or sparsely yellow farinose abaxially, margin denticulate, apex obtuse to rounded. Scapes 40--90 cm, elongating to 1.2 m in fruit, yellow farinose on nodes; umbels 4--6, superimposed, 6--12(--20)-flowered; bracts linear to linear-lanceolate, 0.7--1.5(--3) cm. Pedicel 1.3--2.5(--3.5) cm, ± yellow farinose. Flowers heterostylous. Calyx campanulate, 3.5--5 mm, copiously yellow farinose outside, parted to 1/3; lobes triangular, apex hydathode-apiculate. Corolla bright golden yellow; tube 1.2--1.8 cm; limb ca. 2.5 cm wide; lobes obovate, ca. 8 X 6 mm, distinctly emarginate. Pin flowers: corolla tube 1.2--1.3 cm; stamens ca. 2 mm above base of corolla tube; style 1--1.1 cm. Thrum flowers: corolla tube 1.3--1.8 cm; stamens 1.1--1.4 cm above base of corolla tube; style ca. 3 mm. Capsule globose, slightly shorter than calyx. Fl. Mar-May. 2n = 22@.
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) 0.5 - 1.0
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 4-9
Soil humidity -
Soil texture -
Soil acidity 2-6
Soil nutriment -
Hardiness (USDA) 9-10

Usage

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

Cultivation

Can be grown by divisions.
Mode divisions
Germination duration (days) 14 - 28
Germination temperacture (C°) 20
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Primula helodoxa unspecified picture

Distribution

Primula helodoxa world distribution map, present in China and Myanmar

Identifiers

LSID urn:lsid:ipni.org:names:702023-1
WFO ID wfo-0001106055
COL ID 4MCVT
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Aleuritia helodoxa Primula helodoxa