Overview

Comprehensive Description

Description

Erect or procumbent perennial herb, up to 80 cm, growing from a thick rootstock. Leaves subsessile, linear-lanceolate, up to c. 10 cm long with longish stiff hairs above and on the veins below, often with small orange glands on the undersurface; margin entire. Flowers in elongating inflorescences, eventually up to 25(-30) cm long, greenish or cream with long caudate-acuminate lobes. Fruits almost round, up to 2.5 mm in diameter, hairless, usually brown.
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© Mark Hyde, Bart Wursten and Petra Ballings

Source: Flora of Zimbabwe

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Derivation of specific name

zeylanicum: from Sri Lanka (Ceylon)
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© Mark Hyde, Bart Wursten and Petra Ballings

Source: Flora of Zimbabwe

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Distribution

Distribution in Egypt

Gebel Elba.

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© Bibliotheca Alexandrina

Source: Bibliotheca Alexandrina - EOL Ar

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Global Distribution

Southeast Egypt, tropical Africa, Socotra, Comoro Islands, India.

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© Bibliotheca Alexandrina

Source: Bibliotheca Alexandrina - EOL Ar

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Worldwide distribution

Widespread in tropical Africa, Arabia, Pakistan and India.
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© Mark Hyde, Bart Wursten and Petra Ballings

Source: Flora of Zimbabwe

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Physical Description

Morphology

Description

An erect annual 30-40 cm tall, branched or unbranched from the base, appressed hairy; branches ascending. Lower leaves. mm long. Lamina 25-50 x 3-5 mm, linear, sparse hairy on both surfaces. Hairs less than 1 mm long, usually with a bulbous base; lower surface lighter green. Inflorescence 2.5-4 cm long, terminal and axillary, up to 12 cm in fruit, simple or branched, bearing uniseriate, sessile to subsessile flowers. Bracts 2-3 mm long linear, hairy. Calyx 1.5-2.5 mm long, 5-partite into. lanceolate lobes, appressed hairy on the outer surface. Corolla white, t 3.5 mm long, hairy to the, throat sparsely so, tube somewhat constricted at the throat; lobes obtuse, nervose, margin somewhat undulate. Anthers 0.8 mm long, subsessile, ovate, tip produced, attached c. 0.7 mm above the corolla tube. Stigma conical, 0.5 mm long, glabrous, ± equalling. Style length. Stigmatic ring prominent. Fruit globose, compressed, 4-lobed, upper 2/3rd pilose. Nutlets c. 1.4 mm long, brown, faintly rugulose at the back.
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© Missouri Botanical Garden, 4344 Shaw Boulevard, St. Louis, MO, 63110 USA

Source: Missouri Botanical Garden

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Ecology

Habitat

Deep sandy soils, around wells, near water courses.

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© Bibliotheca Alexandrina

Source: Bibliotheca Alexandrina - EOL Ar

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Life History and Behavior

Life Expectancy

Perennial.

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© Bibliotheca Alexandrina

Source: Bibliotheca Alexandrina - EOL Ar

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