Helichrysum helianthemifolium D.Don ex G.Don

Species

Angiosperms > Asterales > Asteraceae > Helichrysum

Characteristics

Diffuse herb up to 1 m high. Stems long, thin, woody, brittle, thinly greyish-white woolly, closely leafy. Leaves mostly 10-20 x 3-5 mm, smaller upwards, lanceolate or oblong-lanceolate, spreading or later deflexed, apex subacute to very acute, mucronate, base broad, subcordate-clasping, margins often somewhat reflexed, crisped or not, both surfaces thinly greyish-white woolly, upper sometimes more or less glabrescent. Heads heterogamous, ±2.5 x 2 mm, cylindric, base slightly woolly, many in compact terminal corymbose panicles. Involucral bracts in 4 series, graded, imbricate, inner about equalling flowers, oblong, silvery pellucid, tips rounded, opaque milk-white, crisped, minutely radiating. Receptacle with fimbrils exceeding the ovaries. Flowers 12-21, 3-7 female, 8-14 homogamous. Achenes 0.5 mm long, cylindric, glabrous. Pappus bristles many, equalling corolla, scabrid, bases cohering by patent cilia.
More
Perennial herb, up to 1 m high. Stems long, thin, woody, thinly greyish-white, woolly, closely leafy. Leaves mostly 10-20 mm long, becoming smaller upwards, lanceolate or oblong-lanceolate, spreading or later deflexed, mucronate, base broad, subcordate-clasping, margins ± reflexed, crisped or not, both surfaces thinly greyish-white, woolly. Capitula heterogamous, ± 2.5 x 2 mm, cylindric, base ± woolly, many in compact corymbose panicles; involucral bracts in 4 series, graded, imbricate, oblong, silvery pellucid, apex rounded, opaque, crisped. Receptacle fimbrils exceeding ovaries. Flowers 12-21. Flowering time Dec., Jan. Pappus of many bristles. Cypselae 0.5 mm long, cylindric.
Like H. tenuiculum but bracts silvery to white.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 1.0
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 7-8
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 helianthemifolium world distribution map, present in South Africa

Identifiers

LSID urn:lsid:ipni.org:names:212841-1
WFO ID wfo-0000027757
COL ID 3K6S5
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Helichrysum polycephalum Gnaphalium capitellatum Gnaphalium helianthemifolium Gnaphalium helianthemifolium Helichrysum capitellatum Gnaphalium dejectum Gnaphalium helianthemifolium Helichrysum capitellatum Helichrysum helianthemifolium