Helichrysum argyrolepis Macowan

Species

Angiosperms > Asterales > Asteraceae > Helichrysum

Characteristics

Soft-wooded subshrub with tangled masses of branching stems from a woody stock, stems greyish-white felted, closely leafy throughout. Leaves linear or linear-lanceolate, ±6-25 x 1-2(-3) mm, smaller and more distant upwards, appressed or spreading, eventually reflexed, tips acute or subacute, apiculate, base broad, half-clasping, margins more or less revolute, upper surface glandular-pubescent and thickly greyish-white cobwebby or woolly, lower more closely felted. Heads heterogamous, rarely homogamous, campanulate, 13-15 mm long, ±25 mm across the fully radiating bracts, solitary at branch tips. Involucral bracts in ±10 series, graded, loosely imbricate, inner much exceeding flowers, acute, glossy white, mostly palest to dark chestnut brown above, rarely rose-pink. Receptacle shortly honeycombed. Flowers 111-232, (0-)5-25 female, 98-227 homogamous. Achenes 1-1.5 mm long, glabrous. Pappus bristles many, equalling corolla, barbellate above, bases not cohering.
More
Soft-wooded, much-branched subshrub from a woody stock, stems greyish white-felted, closely leafy. Leaves linear or linear-lanceolate, 6-25 mm long, smaller and fewer upwards, appressed or spreading, reflexed, base broad, ± clasping, margins ± revolute, glandular-pubescent and greyish white-cobwebby or-woolly above, lower closely felted. Capitula campanulate, 13-15 mm long, 25 mm in diam., solitary at branch tips; involucral bracts in ± 10 series, graded, glossy white, pale to dark brown above, rarely pink. Flowers 111-232. Flowering time Nov.-Apr. Pappus of many bristles. Cypselae 1.0-1.5 mm long, glabrous.
Subshrub, up to 500 mm tall. Leaves linear or linear-lanceolate, 6-25 x 1-2(-3) mm, smaller and more distant upwards, margins ± revolute, upper surface glandular-pubescent and thickly greyish white cobwebby or woolly, lower more closely felted. Heads campanulate, 13-15 mm long, solitary at branch tips. Flowers with involucral bracts glossy white, mostly palest to dark chestnut-brown above, rarely rose-pink.
Life form -
Growth form subshrub
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 -
Soil texture 7-8
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 argyrolepis world distribution map, present in eSwatini and South Africa

Identifiers

LSID urn:lsid:ipni.org:names:212434-1
WFO ID wfo-0000011244
COL ID 6LHCF
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Helichrysum argyrolepis