Browallia speciosa Hook.

Amethyst flower (en)

Species

Angiosperms > Solanales > Solanaceae > Browallia

Characteristics

obes acuminate-deltoid and directed inward against the corolla tube; corolla blue, mauve or white, salverform, often with an irregular-margined white eye, the tube 20-50 mm across, glabrous within, dorsally puberulent with short, erect, several-celled, often pigmented glandular hairs, their terminal cell transparent and acicular (bayonet hairs); stamens 4 (-5) usually with a staminode, the filaments of the upper pair green, apically pilose with long, dense, colored dendritic hairs, the shorter two with terete filaments, anthers yellow or purplish, ovary glabrous, slightly angled, 3 mm long. Capsule becoming 2 cm across, immersed in the coriaceous calyx.
More
Erect or sprawling herb to 70 cm tall; stems puberulent with short, simple, mostly forward-directed hairs. Leaves ovate or elliptic, to 6 (-9) cm long, acuminate apically, short acuminate or obtuse basally, margins entire or nearly so, somewhat upfolded at the petiole, above with scattered simple hairs on the lamina, beneath puberulent on the veins, petiole ca. 1/4 as long as the leaves. Pedicels glabrous ca. 7 mm long but elongating (3-4 cm) in fruit. Flowers showy, the calyx 5-10 mm long with a few hairs on the angles, the tube inflated to appear bladder-like with 5 prominent angles, lobed 1/3 the way down, the
Life form -
Growth form herb
Growth support free-standing
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.58 - 0.65
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 3-7
Soil texture 3-4
Soil acidity -
Soil nutriment -
Hardiness (USDA) 9-11

Usage

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

Cultivation

Mode -
Germination duration (days) 11 - 18
Germination temperacture (C°) 23
Germination luminosity light
Germination treatment -
Minimum temperature (C°) -7
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Flower

Browallia speciosa flower picture by Luz Rodríguez De Rovira (cc-by-sa)

Distribution

Browallia speciosa world distribution map, present in Cameroon, Colombia, Costa Rica, Ecuador, Sri Lanka, Panama, Peru, and Taiwan, Province of China

Identifiers

LSID urn:lsid:ipni.org:names:814588-1
WFO ID wfo-0001019742
COL ID 692WT
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Browallia speciosa