''Leucopogon alternifolius'' is a species of flowering plant in the heath family

Ericaceae The Ericaceae () are a Family (biology), family of flowering plants, commonly known as the heath or heather family, found most commonly in acidic and infertile growing conditions. The family is large, with about 4,250 known species spread acros ...

and is

endemic Endemism is the state of a species being found only in a single defined geographic location, such as an island, state, nation, country or other defined zone; organisms that are indigenous to a place are not endemic to it if they are also foun ...

to south of Western Australia. It is a low, sprawling shrub with thin branchlets, egg-shaped leaves with a heart-shaped, stem-clasping base, and white or pale pink flowers arranged in up to twenty groups along the flowering branchlets.

Description

''Leucopogon alternifolius'' is a sprawling shrub that typically grows to high and wide, with a single stem at the base, its young branchlets thin and

glabrous Glabrousness () is the technical term for a lack of hair, down, setae, trichomes, or other such covering. A glabrous surface may be a natural characteristic of all or part of a plant or animal, or be due to loss because of a physical condition, ...

. The leaves are egg-shaped, long and wide on a petiole up to long. The leaves are usually concave, the base heart-shaped and stem-clasping and the lower surface a paler shade of green. The flowers are arranged in groups of three to eleven at the ends of branchlets, or in up to twenty leaf axils along flowering branchlets, with egg-shaped

bract In botany, a bract is a modified or specialized leaf, associated with a reproductive structure such as a flower, inflorescence axis or cone scale. Bracts are usually different from foliage leaves in size, color, shape or texture. They also lo ...

s long and slightly shorter bracteoles. The

sepal A sepal () is a part of the flower of angiosperms (flowering plants). Usually green, sepals typically function as protection for the flower in bud, and often as support for the petals when in bloom., p. 106 Etymology The term ''sepalum'' ...

s are egg-shaped, long and often tinged with purple. The petals are joined at the base to form a bell-shaped tube shorter than the sepals, the lobes white or pale pink and long. Flowering occurs from August to December and the fruit is a flattened, more or less circular

drupe In botany, a drupe (or stone fruit) is a type of fruit in which an outer fleshy part (exocarp, or skin, and mesocarp, or flesh) surrounds a single shell (the ''pip'' (UK), ''pit'' (US), ''stone'', or ''pyrena'') of hardened endocarp with a seed ...

long.

Taxonomy and naming

''Leucopogon alternifolius'' was first formally described in 1810 by

Robert Brown Robert Brown may refer to: Robert Brown (born 1965), British Director, Animator and author Entertainers and artists * Washboard Sam or Robert Brown (1910–1966), American musician and singer * Robert W. Brown (1917–2009), American printmaker ...

in his ''

Prodromus Florae Novae Hollandiae ''Prodromus Florae Novae Hollandiae et Insulae Van Diemen'' (Prodromus of the Flora of New Holland and Van Diemen's Land) is a book by the botanist Robert Brown Robert Brown may refer to: Robert Brown (born 1965), British Director, Animator and ...

''. The

specific epithet In Taxonomy (biology), taxonomy, binomial nomenclature ("two-term naming system"), also called binary nomenclature, is a formal system of naming species of living things by giving each a name composed of two parts, both of which use Latin gramm ...

(''alternifolius'') means "alternate-leaved".

Distribution and habitat

This leucopogon mainly grows in heath sometimes woodland, near swamps between Albany and Walole in the Jarrah Forest and Warren biogeographic regions of southern Western Australia.

Conservation status

''Leucopogon alternifolius'' is classified as " Priority Three" by the Government of Western Australia Department of Biodiversity, Conservation and Attractions, meaning that it is poorly known and known from only a few locations but is not under imminent threat.

References

{{Taxonbar, from=Q17242131 alternifolius Ericales of Australia Flora of Western Australia Plants described in 1810 Taxa named by Robert Brown (botanist, born 1773)