Kalmia microphylla (Hook.) A.Heller

Alpine laurel (en)

Species

Angiosperms > Ericales > Ericaceae > Kalmia

Characteristics

Shrubs spreading to erect, 0.05-0.8 m. Twigs terete or slightly 2-angled proximal to node, viscid, glabrous or sparsely hairy. Leaves opposite; petiole absent or 0.1-2 mm, glabrous or puberulent; blade ovate or oval to broadly elliptic or lanceolate, 1.5-4 × 0.3-1.2(-1.8) cm, margins plane to slightly revolute, apex obtuse to acute, abaxial surface puberulent, adaxial glabrous or sparsely puberulent towards base, midribs of both surfaces without purple, stipitate trichomes. Pedicels 10-30 mm. Inflorescences solitary flowers or terminal, corymbiform racemes, (3-)6-12-flowered. Flowers: sepals light pink, pink, or light green, ovate, 2.7-3.6 mm, apex obtuse, surfaces glabrous, margins ciliate; petals connate ca. 1/2 their lengths, usually rose-purple, rarely white, 7-9 × 8-20 mm, glabrous, puberulent near base abaxially; filaments 3-4.5 mm; style 4.5-7 mm. Capsules 5-locular, 3.5-6 × 4-7 mm, glabrous. Seeds winged, oblong, 0.5-1.4 mm. 2n = 24.
More
A shrub. It grows 50 cm tall. The leaves are opposite and sword shaped. The edges are rolled. The flowers are pink and purple and bell shaped.
Life form perennial
Growth form shrub
Growth support free-standing
Foliage retention evergreen
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.3
Root system -
Rooting depth (meter) 0.3
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway c3

Environment

It is a temperate plant.
Light 2-5
Soil humidity 5-6
Soil texture 3-4
Soil acidity 5-7
Soil nutriment -
Hardiness (USDA) 2-6

Usage

The leaves are used to make tea. Caution: Most Kalmias are very poisonous.
Uses beverage medicinal poison tea
Edible leaves
Therapeutic use Antiemetic (leaf), Antihemorrhagic (leaf)
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by cuttings or seedlings. Seeds needs stratification.
Mode cuttings seedlings
Germination duration (days) 30 - 60
Germination temperacture (C°) 21
Germination luminosity -
Germination treatment stratification
Minimum temperature (C°) -45
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Flower

Kalmia microphylla flower picture by John John Hardham (cc-by-sa)

Distribution

Kalmia microphylla world distribution map, present in Canada and United States of America

Conservation status

Kalmia microphylla threat status: Least Concern

Identifiers

LSID urn:lsid:ipni.org:names:133234-2
WFO ID wfo-0001046861
COL ID 3QZB7
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Kalmia polifolia var. microphylla Kalmia polifolia subsp. microphylla Kalmia glauca var. microphylla Kalmia microphylla

Lower taxons

Kalmia microphylla subsp. occidentalis