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Leucophyllum candidum I.M.Jhonst.

Silvri

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Description

Leucophyllum candidum is a small evergreen shrub, usually 1–3 m tall, with a dense rounded growth form. The branches are woody, highly branched, and covered with fine hairs, giving the plant a silvery-white appearance. The plant is drought tolerant and adapted to arid environments. Leaves are simple, opposite, and densely hairy, usually 1–3 cm long. Leaf blades are elliptic to obovate, thick, grey-green to silvery-white due to dense trichomes. The margins are entire, apex rounded or obtuse, and the surface is velvety. Flowers are bisexual, solitary, axillary, and showy, usually white to pale lavender or violet depending on population. The calyx is persistent and five-lobed. The corolla is tubular-funnel-shaped (salverform) with five spreading lobes. Stamens are four and usually didynamous, while the ovary is superior and bicarpellary. The fruit is a small dry capsule, enclosed by the persistent calyx, splitting at maturity to release numerous tiny seeds.

Diagnostic Characters

Vegetative
Compact evergreen shrub. Silvery-grey hairy leaves. Opposite leaf arrangement.
Floral
Tubular funnel-shaped flowers. Bilabiate/five-lobed corolla. Four stamens.
Fruit & Seed
Small capsule. Numerous tiny seeds.

Distribution

Native range: Native to Southwestern United States, Northern Mexico.

In Pakistan: Cultivated as an ornamental shrub in Pakistan, India. Dry tropical and subtropical regions worldwide. In Pakistan it is occasionally planted in Botanical gardens, University campuses, Xeriscape landscapes.

Phenology

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Flowering
Fruiting
Flowering: Mainly summer–autumn Fruiting: Late summer–autumn

Ethnobotany & Uses

Ornamental Importance
The major importance of Leucophyllum candidum is as an ornamental shrub due to Silvery foliage, Attractive flowers, Low water requirement. Used in Dry gardens, Landscape plantations, Hedges, Roadside landscaping.
Ecological Importance
Important in arid landscapes Provides shelter for insects, Supports pollinators. Improves visual and ecological value of dry habitats.
Medicinal Importance
Species of Leucophyllum have been investigated for secondary metabolites including Flavonoids, Phenolic compounds, Terpenoids. Traditional medicinal uses reported for related species include Fever remedies, Respiratory treatments, (L. candidum specifically has limited ethnomedicinal documentation.).
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Where it grows on campus

This species is on the campus floristic list but was not pinned during the GPS mapping survey, so it has no map records yet.

Taxonomic Notes

The genus Leucophyllum has historically been placed in Scrophulariaceae, but molecular studies place it within Plantaginaceae.