Thesium virgatum Lam.

Species

Angiosperms > Santalales > Santalaceae > Thesium

Characteristics

Stem much-branched, terete; branches numerous, erect, slender, angular, slightly pustulate, glabrous; leaves acicular, terete, acute, up to 2 in. long, fleshy, glabrous; inflorescences numerous, few-flowered, paniculute-corymbose; peduncle free from the bracts; bracts linear-subulate, acute or subacute, 1-2 lin. long, concave on the lower surface; bracteoles shorter than the flowers, oblong-lanceolate, obtuse, about 1/3 lin. long, with slightly membranous margins, glabrous; perianth 1/2-3/4 lin. long; segments triangular, flat, 1/3-3/4 lin. long, deeply hooded, glabrous except on the slightly papillose margin; anthers exserted, 1/8 lin. long; style very short; fruit ellipsoid-globose, rather attenuated at the base, 2 lin. long, 7-winged at the base, somewhat reticulate between the wings.
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A small shrub, up to 1 ft. high; stems several, erect or suberect, woody, glabrous; branches bearing small corymbs of several flowers; leaves small and inconspicuous, linear, acute, about 1 lin. long, fleshy, concave on the upper surface, glabrous; flowers small, in small terminal branched cymes, bracts a little shorter than the flowers, ovate or oblong, acute; bracteoles very small; perianth saucer-shaped, 1 lin. long; segments triangular, 1/2 lin. long, hooded, flat, glabrous or nearly so on the margin; disc conspicuous; anthers exserted, nearly 1/4 lin. long; style 1/4 lin. long; fruits turbinate at the base, scarcely 2 lin. long, rather fleshy and scarcely ribbed.
Much-branched, hemiparasitic, sparsely leafy shrublet, up to 0.75 m high; stems angled and minutely pustulate. Leaves acicular, 2 mm long, margins decurrent. Inflorescences of few-flowered, lax, corymbose heads. Bracts leaf-like, often widely separated from flowers. Flowers whitish. Perianth tube very short; segments triangular, ± 1 mm long, deeply hooded. Disc conspicuous. Flowering time Aug.-Feb. Fruit ellipsoid-globose, ± 4 mm long, attenuate and 7-winged at base, somewhat reticulate between wings.
Much-branched, sparsely leafy, hemiparasitic shrublet to 60 cm with stems angled and minutely pustulate. Leaves small, terete. Flowers in lax corymbs, whitish.
Life form -
Growth form shrub
Growth support parasite
Foliage retention evergreen
Sexuality hermaphrodite
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Mature height (meter) 0.53
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Environment

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Hardiness (USDA) 9-11

Usage

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Cultivation

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Distribution

Thesium virgatum world distribution map, present in South Africa

Identifiers

LSID urn:lsid:ipni.org:names:781185-1
WFO ID wfo-0001134470
COL ID 7BWM4
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Linosyris corymbuligera Thesium virgatum Thesium corymbuligerum Linosyris virgata