Helichrysum thapsus (Kuntze) Moeser

Species

Angiosperms > Asterales > Asteraceae > Helichrysum

Characteristics

Perennial herb, crown brown silky-woolly, stems one or several, simple, erect to ±600 mm, thinly white-felted, leafy in lower half, bracteate above. Leaves up to ±120 x 30 mm, elliptic, or elliptic-spathulate, apex acute, base narrowed, half-clasping, both surfaces thinly to thickly greyish-white woolly, sometimes glabrescent, the wool then clinging to the margins and the three prominent nerves. Heads homogamous, campanulate or broadly cylindric, ±5 x 3 mm, up to ±12 in tight clusters, these in turn arranged in an open corymbose panicle. Involucral bracts in ±6 series, graded, closely imbricate, woolly, inner semipellucid, straw-coloured, or pale brown, plicate, equalling the flowers, not radiating. Receptacle with fimbrils about equalling ovary. Flowers ±15-30. Achenes not seen, ovaries glabrous. Pappus bristles many, about equalling corolla, scabrid, bases cohering lightly by patent cilia.
More
Crown brown-silky woolly, stems 1-many, simple, erect, up to ± 600 mm long, thinly white-felted, leafy in lower half, bracteate above. Leaves up to ± 120 x 30 mm, elliptic or elliptic-spathulate, apex acute, base narrowed, half-clasping, mostly both surfaces thinly to thickly greyish white-woolly, prominently 3-nerved. Capitula campanulate or broadly cylindric, ± 5 x 3 mm, up to ± 12 in tight clusters, these in open, corymbose panicles; involucral bracts in ± 6 series, woolly, straw-coloured or pale brown, not radiating. Flowers 15-30. Flowering time Dec.-Apr. Pappus of many bristles, bases cohering lightly by patent cilia.
Perennial herb, up to 0.6 m high. Leaves 120 x 30 mm, elliptic or elliptic-spathulate, both surfaces thinly to thickly greyish white woolly, sometimes glabrescent and wool then clinging to margins and main veins. Heads campanulate or broadly cylindric, in tight clusters, these in an open corymbose panicle. Flowers yellow; involucral bracts straw-coloured or pale brown.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.6
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) 9-12

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 thapsus world distribution map, present in eSwatini and South Africa

Identifiers

LSID urn:lsid:ipni.org:names:210154-1
WFO ID wfo-0000026704
COL ID 3K7CM
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Gnaphalium thapsus Helichrysum thapsus Helichrysum lanatomarginatum