Thesium singulare Hilliard

Species

Angiosperms > Santalales > Santalaceae > Thesium

Characteristics

Perennial herb with a woody caudex c. 15 mm in diameter crowned with crowded, very short, scaly vegetative buds, also with stout woody stolons up to c. 4 mm in diameter, with more distant scaly buds, these eventually producing erect flowering stems, loosely tufted; stems 110–150 mm tall, very slender (less than 1.3 mm diameter), simple below, sparingly branched above, branches sharply ascending, longitudinally finely striate, ± distantly leafy, whole plant drying buff-coloured to greenish.
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Flowers solitary, terminal but soon overtopped by a branch developing from the axil of a scale leaf immediately below the floral bract and so resembling a very lax 2–3-flowered spike, but technically a monochasial cyme, often terminating in a long very slender, sterile shoot.
Perianth “white”; tube 2.6–3 mm long, external glands conspicuous, ellipsoid, about half as long as tube, situated immediately above ovary; lobes 2.7–3 × 0.6–0.8 mm, oblong, ± obtuse, margins inflexed, weakly erose-fimbriate.
Leaves all reduced to scales 1–2 × 0.8–1 mm, lanceolate, acuminate, midrib strongly raised on dorsal surface near base; scales at extreme base of stem closely imbricate, distant and closely appressed on expanded stem.
Stamens inserted near base of perianth lobes; filaments 0.9–1.3 mm long, conspicuous; anthers 0.8–0.9 mm long.
Bracts c. 1 × 0.6–0.8 mm, similar to the scale leaves; bracteoles 2, similar to bract and scarcely smaller.
Fruit c. 2.5 × 2.5 mm, pallid, ribs strongly raised, reticulations coarse, strongly raised.
Style c. 5 mm long; stigma nearly reaching top of perianth lobes.
Life form perennial
Growth form herb
Growth support parasite
Foliage retention evergreen
Sexuality hermaphrodite
Pollination -
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Mature height (meter) 0.11 - 0.15
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Environment

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Usage

Uses -
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

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Distribution

Thesium singulare world distribution map, present in Zambia

Identifiers

LSID urn:lsid:ipni.org:names:958979-1
WFO ID wfo-0001134566
COL ID 56FPC
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Thesium singulare