Helichrysum melanacme Dc.

Species

Angiosperms > Asterales > Asteraceae > Helichrysum

Characteristics

Perennial herb or shrub, up to 500 mm high; soft-wooded, branches often tangled; thinly greyish white-woolly, closely leafy. Leaves: blade very narrowly ovate or linear, 8-35 x 1-5 mm, apex acuminate, base broad, ear-clasping, margins revolute, upper surface woolly or cobwebby, lower surface white-woolly. Heads disciform, cylindric or narrowly campanulate, ± 3 x 2 mm, many in cymose clusters arranged in a compact, sometimes lax, terminal, corymbose panicle. Involucral bracts in ± 4 series, graded, closely imbricate, inner nearly equalling florets, tips obtuse, crisped, scarcely radiating, tawny or innermost straw-coloured, stereome divided. Receptacle epaleate, with fimbrils equalling ovaries. Flowers: female and disc florets (15-)20-45, 6-18 female florets, fewer than disc florets; corolla of disc florets funnel-shaped, yellow; Nov.-Mar. Fruit with cypsela glabrous. Pappus of many barbellate bristles, bases cohering by patent cilia.
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Perennial herb or shrub, up to 500 mm tall. Leaves 8-35 x 1-5 mm, lanceolate or linear-lanceolate, margins revolute, woolly or cobwebby above, white-woolly below. Heads cylindric or narrowly campanulate, many in cymose clusters arranged in a compact, sometimes lax, terminal corymbose panicle. Flowers yellow; involucral bracts tawny or innermost yellowish.
H. melanacme is closely allied to H. tenuiculum but is distinguished by its leaves, which are nearly always woolly or cobwebby above, and its heads with involucral bracts tawny (or very rarely the innermost yellowish), tips always decidedly crisped, and more numerous flowers, (15-)20-45, 6-18 female, 12-32 homogamous.
Closely allied to H. tenuiculum, but differs by: Leaves ± always woolly or cobwebby above. Involucral bracts tawny, apex always clearly crisped. Flowers 15-45. Flowering time Dec.-Apr.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.5
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months -
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
Soil humidity 1-3
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 9-11

Usage

Uses medicinal
Edible -
Therapeutic use Tinder (unspecified)
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 melanacme world distribution map, present in Lesotho, eSwatini, and South Africa

Identifiers

LSID urn:lsid:ipni.org:names:213028-1
WFO ID wfo-0000035694
COL ID 3K6Y4
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Helichrysum melanacme Helichrysum pullulum Gnaphalium kuntzei Gnaphalium melanacme Helichrysum kuntzei Helichrysum kuntzei