Ericaceae

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Ericaceae

[‚er·ə′kās·ē‚ē]
(botany)
A large family of dicotyledonous plants in the order Ericales distinguished by having twice as many stamens as corolla lobes.

Ericaceae

 

a family of dicotyledonous plants comprising low evergreen shrubs or (rarely) semishrubs, lianas, and trees. Leaves are usually alternate; flowers are bisexual and sometimes single, although more often formed in umbellate, racemic, or panicular inflorescences. There are four or five each of sepals and petals—rarely, the number is as high as eight each. The corolla is usually brightly colored, and the fruit is boll-like or drupelike. There are about 50 genera and 1,750 species inhabiting both hemispheres, from the arctic deserts to the tropics. In the USSR, 21 genera and over 50 species are found. There are some ornamentals (such as species of rhododendron, erica, and the strawberry tree). Among the wild Ericaceae, the most widespread are Korean rhododendron, heather, butterbur, and bearberry. Micorhiza often form on the roots of Ericaceae; for this reason the plants are able to grow on nitrogen-poor boggy or sandy soils. Sometimes the bilberry family is considered part of the Ericaceae family.

REFERENCES

Bush, E. A., and A. N. Poiarkova. “Vereskovye.” In Flora SSSR, vol. 18. Moscow-Leningrad, 1952.
Takhtadzhian, A. L. Sistema i filogeniia tsvetkovykh rastenii. Moscow-Leningrad, 1966.

M. E. KIRPICHNIKOV

References in periodicals archive ?
If you live in a hard water area, where tap water contains high levels of lime, avoid using it to water camellias and other ericaceous plants or leaves will turn pale and yellow.
ERICACEOUS plants must be grown in lime-free soil or the leaves will turn yellow and the plants' health will suffer.
Rhododendrons, azaleas and all the ericaceous plants must have an acid soil and ericaceous compost.
Pine needles are worth gathering and placing in a separate leaf mould pile as they produce acidic leaf mould, which is ideal for mulching ericaceous plants, such as rhododendrons, azaleas, camellias, Pieris and blueberries.
Rainwater is particularly beneficial for watering potted ericaceous plants - for instance, rhododendrons, azaleas and camellias.
Start feeding the plant with a special feed specially formulated for ericaceous plants (such as Miracid) and top up with Sequestered iron for an immediate improvement.
It's brilliant used in the vegetable garden, but should be avoided where ericaceous plants such asazaleas and heathers are being grown, as these plants need acidic growing conditions and are chalk-hating.
Phostrogen Acid Plant Food and Tonic (1kg) - a three-in-one formula for ericaceous plants.
Spent mushroom waste is too alkaline for some plants; bark, peat, and pine needles are acidic, excellent for rhododendrons and other ericaceous plants while chopped straw contains harmful traces of ammonia.
These nutrients are unavailable to ericaceous plants that are growing in limy soil.
But I do collect a sackful each year from the guttering around the house where the needles accumulate in a stinking, soggy mess, but ideal for spreading around rhododendrons and other ericaceous plants.