Helichrysum harveyanum Wild

Species

Angiosperms > Asterales > Asteraceae > Helichrysum

Characteristics

Perennial herb, roots with slender tubers, rootstock slender, woody, flowering stem solitary, simple, erect to 300-750 mm, glandular, loosely cobwebby woolly, closely leafy but more distantly so above. Radical leaves often wanting, when present ±100-300 x 5-10 mm, roughly ? wiry petiole, blade linear-lanceolate, triplinerved, margins weakly revolute, both surfaces scabrid, hairs often only near margins and above veins, often cobwebby-woolly below; cauline leaves mostly 40-170 x 1-5 mm, smaller and more distant upwards and passing into bracts, linear-lanceolate or linear, acuminate, base broad, clasping, shortly decurrent, margins strongly revolute, upper surface and midrib below scabrid, often some woolly hairs as well. Heads homogamous, campanulate, 4-5 x 3-4 mm, many in congested corymbose clusters arranged in a spreading corymbose panicle. Involucral bracts in ±5 series, graded, loosely imbricate, about equalling flowers, not radiating, tawny, pellucid or subopaque, tips obtuse, or rarely subacute, somewhat crisped. Receptacle with fimbrils much exceeding ovaries. Flowers 17-30. Achenes 1.5 mm long, glabrous. Pappus bristles many, about equalling corolla, scabrid, bases cohering strongly by patent cilia, lightly fused as well.
More
Perennial herb, 0.30-0.75 m high. Radical leaves 100-300 x 5-10 mm, petiolate, linear-lanceolate, both surfaces scabrid, often cobwebby-woolly below; cauline leaves 40-170 x 1-5 mm, smaller upwards, linear-lanceolate or linear, margins strongly revolute, upper surface and midrib below scabrid. Heads campanulate, in congested corymbose clusters, arranged in corymbose panicle. Flowers yellow; involucral bracts tawny.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.3 - 0.75
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light 7-9
Soil humidity 1-5
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 - 12
Germination temperacture (C°) 21 - 23
Germination luminosity light
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Distribution

Helichrysum harveyanum world distribution map, present in Botswana and South Africa

Identifiers

LSID urn:lsid:ipni.org:names:907478-1
WFO ID wfo-0000133432
COL ID 3K6RY
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Helichrysum subulifolium Helichrysum harveyanum