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Bog rosemary

Andromeda polifolia
Andromeda polifolia bloom.jpg
Andromeda polifolia var. polifolia in flower
Scientific classification
Kingdom: Plantae
(unranked): Angiosperms
(unranked): Eudicots
(unranked): Asterids
Order: Ericales
Family: Ericaceae
Subfamily: Vaccinioideae
Genus: Andromeda
L.
Species: A. polifolia
Binomial name
Andromeda polifolia
L.

Andromeda polifolia, common name bog-rosemary, is a species of flowering plant native to northern parts of the Northern Hemisphere. It is the only member of the genus Andromeda, and is only found in bogs in cold peat-accumulating areas.

It is a small shrub growing to 10–20 centimetres (4–8 in) (rarely to 40 cm or 16 in) tall with slender stems. The leaves are evergreen, alternately arranged, lanceolate, 1–5 centimetres (0.4–2.0 in) long and 2–8 millimetres (0.08–0.31 in) broad, dark green above (purplish in winter) and white beneath with the leaf margins curled under. The flowers are bell-shaped, white to pink, 5–8 mm (0.20–0.31 in) long; flowering is in late spring to early summer. The fruit is a small capsule containing numerous seeds.

There are two varieties, treated as distinct species by some botanists:

The genus was named by Carl Linnaeus who observed it during his 1732 expedition to Lapland and compared the plant to Andromeda from Greek mythology. The specific epithet polifolia means "grey-leaved". The common name "bog rosemary" derives from the superficial resemblance of the leaves to those of rosemary, which is not closely related.

Numerous cultivars have been developed for garden use, all of which require damp acid soil in shade. The cultivars 'Compacta' and 'Macrophylla' have gained the Royal Horticultural Society's Award of Garden Merit.


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Wikipedia

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