Thesium helodes Hilliard

Species

Angiosperms > Santalales > Santalaceae > Thesium

Characteristics

Perennial herb with slender stolons c. 1 mm in diameter and a few distant very short scaly vegetative buds that eventually develop into stems; stems c. 150–300 mm long, c. 0.8–1 mm in diameter, ± erect, simple to very sparingly virgately branched in upper part, distinctly ribbed by decurrent leaves, distantly leafy.
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Perianth “white”, tube 1.7–2 mm long, external glands conspicuous, ellipsoid, about half as long as tube, lobes 2–2.4 × 0.5–0.8 mm, oblong, obtuse, hood c. 0.25 mm long, margins inflexed, erose-fimbriate.
Flowers few to many in long lax spikes sometimes terminating in a very slender bracteate (but sterile?) apex, rarely a filiform scaly shoot developing immediately below a flower and much overtopping it.
Bracts 1.5–2 × 0.8–1.3 mm; bracteoles 2, often larger, 1.8–3.2 × 1.2–1.8 mm, ovate-cuspidate, thick-textured, margins membranous, erose-ciliolate.
Stamens inserted near base of perianth lobes; filaments 1–1.3 mm long, conspicuous; anthers 0.5–0.7 mm long.
Leaves all reduced to scales c. 1–2 × 0.4–0.8 mm, lanceolate, acuminate, thick-textured, closely appressed.
Fruit c. 2.5 × 1.8 mm, light reddish-brown, strongly ribbed and reticulate.
Style 3.2–3.6 mm long.
Life form perennial
Growth form herb
Growth support parasite
Foliage retention evergreen
Sexuality hermaphrodite
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Usage

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Cultivation

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Distribution

Thesium helodes world distribution map, present in Zimbabwe

Identifiers

LSID urn:lsid:ipni.org:names:958974-1
WFO ID wfo-0001134531
COL ID 56FF7
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Thesium helodes