Calluna Salisb.

Heather (en), Callune (fr)

Genus

Angiosperms > Ericales > Ericaceae

Characteristics

Shrubs. Stems erect or ascending, (much-branched); twigs hairy to glabrescent. Leaves persistent, opposite; petiole absent; blade coriaceous, margins spinulose-ciliate. Inflorescences terminal or axillary, racemes or panicles, 5-30-flowered; perulae absent. Flowers bisexual, radially symmetric; sepals 4, distinct; petals 4, barely connate basally, corolla persistent, campanulate; stamens 8, included; anthers with awns, dehiscent by lateral slits; ovary 5-locular, (ovoid); style slightly exserted, straight; stigma capitate. Fruits capsular, globose, dehiscence septifragal. Seeds ca. 5-10, ellipsoid, not winged, not tailed; testa (firm), ± alveolate-reticulate. x = 8.
More
Fls 4-merous, each closely subtended by 3 pairs of decussate bracts simulating a cal; sep distinct, petaloid, scarious, much exceeding the tubular, deeply 4-lobed cor; stamens 8, included, connivent; anthers lance-subulate, each with 2 short basal spurs, the pollen sacs distinct for more than half their length above, opening longitudinally nearly to the base; stigma deeply 4-lobed; capsule 4-valved, enclosed by the persistent perianth; branched shrubs with small, opposite, decussate lvs and small, white to pink or rose-purple fls in ± secund racemes. Monospecific.
Small evergreen shrub. Lvs opposite, sessile, scale-like, 4-ranked. Fls in bracteate, terminal spikes or sometimes panicles, 4-merous. Calyx of free petaloid sepals, > corolla, persistent. Corolla deeply lobed, campanulate, persistent, scarious. Stamens 8, included; anthers acuminate, with 2 reflexed dorsal appendages, opening by elongated slits. Fr. a septifragal capsule, invested in the persistent perianth. Seeds few.
Life form perennial
Growth form shrub
Growth support -
Foliage retention evergreen
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) -
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 4-9

Usage

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

Cultivation

Mode -
Germination duration (days) 30 - 60
Germination temperacture (C°) 18 - 21
Germination luminosity -
Germination treatment stratification
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Calluna unspecified picture

Distribution

Calluna world distribution map, present in New Zealand and United States of America

Identifiers

LSID urn:lsid:ipni.org:names:14653-1
WFO ID wfo-4000006126
COL ID 3FR3
BDTFX ID 86066
INPN ID 190223
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Calluna

Lower taxons

Calluna vulgaris