Helichrysum marginatum Dc.

Species

Angiosperms > Asterales > Asteraceae > Helichrysum

Characteristics

Mat-forming dwarf shrub, main stems prostrate, branching, thick (10 mm diam.) and woody with age, producing many crowded leaf rosettes, flowering stems terminal, often solitary, erect, up to ±150 mm tall, loosely greyish-white woolly, leafy. Radical leaves lingulate, up to ±40 x 10 mm, leathery, glandular punctate, glabrous at maturity or occasionally glandular-pubescent, margins white-woolly; cauline leaves similar but smaller and decreasing in size upwards. Heads heterogamous, campanulate, ±15-20 mm long, double that across the radiating bracts, solitary. Involucral bracts in ±10 series, graded, loosely imbricate, much exceeding the flowers, acute, snow-white, crimson blotch near base inside. Receptacle scarcely honeycombed. Flowers 195-259, 18-29 female, 175-234 homogamous. Achenes 1.25 mm long, cylindric, with duplex hairs. Pappus bristles many, scabridulous, bases not cohering. Pappus bristles many, scabridulous, bases not cohering.
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Dwarf shrub, mat-forming; main stems procumbent, branching; flowering stems up to 150 mm high, terminal, often solitary, erect, loosely greyish white-woolly, leafy. Leaves crowded in many basal rosettes; blade of basal leaves lingulate (obovate), up to ± 40 x 10 mm, leathery, glandular-punctate, glabrous to glandular-pubescent, margins white-woolly; blade of stem leaves similar but smaller upwards. Heads disciform, campanulate, ± 15-20 x ± 40 mm, solitary. Involucral bracts in ± 10 series, graded, loosely imbricate, much exceeding florets, radiating, dull white, crimson blotch near base inside, tips acute, stereome divided. Receptacle epaleate, scarcely honeycombed. Flowers: female and disc florets 195-259, 18-29 female; corolla of disc florets narrowly funnel-shaped, yellow?; Dec.-Feb. Fruit with cypsela hairy. Pappus of many barbellate bristles, bases free.
Mat-forming, dwarf shrub, main stems prostrate, branching, with many-crowded leaf rosettes, flowering stems terminal, often solitary, erect, up to ± 150 mm high, loosely greyish white-woolly, leafy. Leaves: radical leaves lingulate, up to ± 40 mm long, leathery, glandular-punctuate, glabrous to glandular-pubescent, margins white-woolly; cauline leaves similar but smaller upwards. Capitula heterogamous, campanulate, ± 15-20 mm long, double that in diam., solitary; involucral bracts in ± 10 series, graded, white, crimson blotch near base inside. Flowers 195-259. Flowering time Dec.-Feb. Pappus of many bristles, bases free. Cypselae 1.25 mm long, cylindric, hairy.
Life form -
Growth form shrub
Growth support free-standing
Foliage retention evergreen
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) 0.1 - 0.5
Mature height (meter) 0.15
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 -
Soil texture 7-8
Soil acidity 4-8
Soil nutriment -
Hardiness (USDA) 10-11

Usage

Uses -
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by cuttings or seedlings.
Mode cuttings seedlings
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 marginatum world distribution map, present in Lesotho and South Africa

Identifiers

LSID urn:lsid:ipni.org:names:213018-1
WFO ID wfo-0000056174
COL ID 3K6XP
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Gnaphalium marginatum Helichrysum marginatum