Helichrysum swynnertonii S.Moore

Species

Angiosperms > Asterales > Asteraceae > Helichrysum

Characteristics

Mat-forming perennial herb or subshrub, stock creeping, becoming very stout and woody, stems many, branching only below, ascending, ±100-150 mm long, closely leafy, flowering stems solitary, terminal, one-headed, leafy below, bracteate upwards, grey-felted. Leaves up to 80 x 10 mm, more or less erect, lanceolate-elliptic, apex acute, base slightly narrowed, half-clasping, webbed to the stems by loosely interwoven stringy-woolly hairs, both surfaces and margins enveloped in similar loosely-woven grey stringy-woolly felt underlain by patent glandular hairs, margins slightly involute. Heads homogamous, broadly campanulate, ±13-18 mm long, solitary at the branch tips. Involucral bracts in ±10 series, graded, loosely imbricate, about equalling the flowers, acute, radiating, glossy white with a faint yellowish or brownish overcast. Receptacle with flattened tubercles. Flowers 129-201, yellow. Achenes ±1.5 mm, barrel-shaped, with myxogenic duplex hairs. Pappus bristles many, equalling corolla, scabrid, bases cohering strongly by patent cilia.
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Stock creeping, stems many, branching below, ascending, up to 150 mm long, closely leafy, flowering stems solitary, terminal, 1-headed, leafy below, bracteate upwards, grey-felted. Leaves up to 80 mm long, ± erect, lanceolate-elliptic, apex acute, base narrowed, half-clasping, webbed to stems by hairs, both surfaces and margins with similar loosely woven, grey, stringy, woolly felt underlain by patent glandular hairs. Capitula broadly campanulate, ± 13-18 mm long; involucral bracts in ± 10 series, graded, radiating, glossy white with a faint yellow or brown overcast. Receptacle with flattened tubercles. Flowers 129-201, yellow. Flowering time Oct.-Dec. Pappus of many bristles. Cypselae ± 1.5 mm long, barrel-shaped.
Matforming, perennial herb or shrublet, 100-150 mm tall. Leaves 80 x 10 mm, lanceolate-elliptic, enveloped in loosely woven, grey, stringy-woolly felt. Heads broadly campanulate, 13-18 mm long, solitary at branch tips. Flowers yellow; involucral bracts glossy white with faint yellowish or brownish overcast.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.1 - 0.15
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 swynnertonii world distribution map, present in South Africa and Zimbabwe

Identifiers

LSID urn:lsid:ipni.org:names:213407-1
WFO ID wfo-0000030463
COL ID 3K7BZ
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Helichrysum swynnertonii