Helichrysum intricatum Dc.

Species

Angiosperms > Asterales > Asteraceae > Helichrysum

Characteristics

Perennial herb with tufts of delicate wiry stems decumbent then erect, up to 600 mm long, virgate, glabrous below, white-woolly-felted above, leafy, becoming pedunculoid upwards. Leaves mostly 12-30 x 2.5-8 mm, diminishing upwards and passing into small distant bracts, oblong, oblong-spathulate or lanceolate, apex sub-acute or acute, mucronate, base cordate-clasping in larger leaves, margins slightly revolute, upper surface with coarse spreading hairs, cobwebby as well initially, lower surface white woolly-felted. Heads homogamous or heterogamous, campanulate, 4 x 2.5 mm, many felted at the base into terminal flat-topped glomerules 10-20 mm across, becoming somewhat looser with age. Involucral bracts in 4 series, graded, loosely imbricate, outermost pale brown or yellow, webbed together with wool, inner lemon-yellow, sub-pellucid, tips obtuse, about equalling flowers, minutely radiating. Receptacle with fimbrils about equalling or exceeding ovaries. Flowers 8-15, 0-3 female, 6-15 homogamous. Achenes 1 mm long, broadly cylindric, glabrous or with myxogenic duplex hairs. Pappus bristles many, equalling corolla, scabrid, bases cohering by patent cilia, some light fusion as well.
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Perennial herb. Stems in tufts, wiry, decumbent then erect, up to 600 mm long, glabrous below, white-woolly above, leafy. Leaves 12-30 x 2.5-8.0 mm, smaller upwards, oblong to lanceolate, base cordate-clasping, margins ± revolute, upper surface with coarse spreading hairs, cobwebby also at first, lower surface white-woolly felted. Capitula homogamous or heterogamous, campanulate, 4 x 2.5 mm, many felted into terminal, flat-topped glomerules; involucral bracts in 4 series, outermost pale brown or yellow, inner lemon-yellow. Receptacle fimbrillate. Flowers 8-15. Flowering time Dec., Jan. Pappus of many bristles, bases cohering by patent cilia, some light fusion too. Cypselae 1 mm long, broadly cylindric, glabrous or hairy.
Wiry, grey-woolly shrublet or subshrub to 60 cm. Leaves oblanceolate, margins slightly revolute, glabrescent but roughly hairy above, woolly beneath. Flower heads discoid or disciform, many congested in terminal corymbs, campanulate, canary-yellow, 4 x 2.5 mm, florets 8-15, ovary glabrous or papillate-hairy.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) -
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 9-11

Usage

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

Cultivation

Mode -
Germination duration (days) 7 - 10
Germination temperacture (C°) 18 - 23
Germination luminosity light
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Distribution

Helichrysum intricatum world distribution map, present in South Africa

Identifiers

LSID urn:lsid:ipni.org:names:212892-1
WFO ID wfo-0000115965
COL ID 3K6TP
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Gnaphalium intricatum Helichrysum intricatum