Helichrysum silvaticum Hilliard

Species

Angiosperms > Asterales > Asteraceae > Helichrysum

Characteristics

Perennial herb up to ±400 mm high, sparingly branched, branches thinly grey-woolly, leafy particularly above. Leaves ±15-40 x 1.5-6 mm, slightly smaller upwards, elliptic-lanceolate, apex acute, mucronate, base narrowed, sessile, both surfaces thinly grey-woolly. Heads homogamous, turbinate-campanulate, ±4 x 4 mm, many in small corymbose panicles terminating the branches. Involucral bracts in ±5 series, graded, loosely imbricate, inner about equalling flowers, bases silvery, translucent, tips opaque white, acute, not radiating. Receptacle with fimbrils equalling ovaries. Flowers ±20-30. Achenes 0.5 mm long, glabrous. Pappus bristles many, about equalling corolla, scabridulous, bases cohering strongly by patent cilia, some light fusion as well.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.4
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 5-6
Soil acidity -
Soil nutriment -
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 -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Distribution

Helichrysum silvaticum world distribution map, present in Mozambique and South Africa

Identifiers

LSID urn:lsid:ipni.org:names:213332-1
WFO ID wfo-0000074129
COL ID 3K79R
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Helichrysum silvaticum