Helichrysum hypoleucum Harv.

Species

Angiosperms > Asterales > Asteraceae > Helichrysum

Characteristics

Soft-wooded half-shrub, erect or scandent, climbing to ±2 m, branches white-felted, leafy. Leaves on narrowly winged petioles up to 25 mm long, base clasping, auriculate, blade up to 80 x 50 mm, cordate-ovate, apex acute to acuminate, upper surface thinly cobwebby at first, soon merely minutely glandular-pubescent, lower white-felted, digitately nerved. Heads heterogamous, campanulate, ±2 x 2 mm, many in very congested corymbose clusters, these arranged in large spreading corymbose panicles. Involucral bracts in 4 series, graded, imbricate, outer woolly, inner about equalling flowers, glossy, silvery translucent, obtuse, minutely radiating. Receptacle honeycombed. Flowers 8-13, 1-4 female, 7-11 homogamous, bright yellow. Achenes ±0.5 mm long, barrel-shaped, with myxogenic duplex hairs. Pappus bristles many, slightly shorter than corolla, scabrid, bases lightly cohering by patent cilia.
More
Shrub or climber; stems up to 2 m long, erect or scandent, white-felted, leafy. Leaves: blade cordate-ovate, 80 x 50 mm, apex acute to acuminate, upper surface thinly cobwebby at first, later minutely glandular pubescent, lower surface white-felted, digitately veined; petiole up to 25 mm long, winged, base clasping, auriculate. Heads disciform, campanulate, ± 2 x 2 mm, many in congested, corymbose clusters, these in large, spreading, corymbose panicles. Involucral bracts in 4 series, graded, imbricate, outer bracts woolly, inner ± equalling florets, glossy, silvery translucent, tips obtuse, minutely radiating, stereome divided. Receptacle epaleate, honeycombed. Flowers: female and disc florets 8-13, 1-4 female; corolla of disc florets campanulate above, bright yellow; Jan.-Apr. Fruit with cypsela hairy. Pappus of many barbellate bristles, bases lightly cohering by patent cilia.
Erect or scandent half-shrub or climber. Leaves cordate-ovate, 80 x 50 mm, upper surface thinly cobwebby at first, later minutely glandular pubescent, lower white-felted; petiole winged, base clasping, auriculate. Heads campanulate, many in congested corymbose clusters, these in large, spreading corymbose panicles. Flowers bright yellow; involucral bracts silvery.
Life form -
Growth form
Growth support free-standing
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 2.0
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Rooting depth (meter) -
Root diameter (meter) -
Flower color
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Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
Soil humidity -
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Hardiness (USDA) 9-12

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 -
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Optimum temperature (C°) -
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Productivity -

Distribution

Helichrysum hypoleucum world distribution map, present in South Africa

Identifiers

LSID urn:lsid:ipni.org:names:212872-1
WFO ID wfo-0000034007
COL ID 3K6T4
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Helichrysum hypoleucum Gnaphalium subcordatum