Helichrysum edwardsii Wild

Species

Angiosperms > Asterales > Asteraceae > Helichrysum

Characteristics

Subshrub up to 1 m tall, stock with woolly vegetative buds or leaf tufts, stems several to many from the base, stout, woody, simple or sparingly branched below the inflorescence branches, glandular-setose, often thinly white woolly-cobwebby as well, densely leafy. Radical leaves (seen in one specimen only) rosulate, oblong, acute, ±50-55 x 8-15 mm, thinly greyish-white woolly on both surfaces; cauline leaves mostly 40-75(-100) x 18-28(-40) mm, smaller on the inflorescence branches, oblong or ovate, acute, mucronate, base broad, cordate-clasping, both surfaces glandular-setose, lower leaves at least initially greyish-white woolly on both surfaces as well, upper surface usually glabrescent, but upper leaves, particularly those on the inflorescence branches, often without wool or with wool confined to the margins and midline. Heads heterogamous, depressed-globose, ±14-17 mm long, 28-36 mm across the radiating bracts, several corymbosely arranged, the inflorescence branches simple or subsimple, closely leafy up to the heads. Involucral bracts in ±9 series, graded, imbricate, inner much exceeding the flowers, glossy, pale yellow inside, light golden-brown outside. Receptacle shortly honeycombed. Flowers ±830-2350, 100-165 female, 700-2200 homogamous. Achenes ±1 mm long, barrel-shaped, glabrous. Pappus bristles many, about equalling corolla, tips barbellate, shaft scabrid, bases with patent cilia, cohering lightly or not.
More
Subshrub, up to 1 m high. Radical leaves rosulate, oblong, 50-55 x 8-15 mm, thinly greyish white woolly on both surfaces; cauline leaves 40-75(-100) x 18-28 (-40) mm, oblong or ovate, both surfaces glandular-setose, upper surface glabrescent or with wool confined to margins and midline. Heads depressed-globose, 14-17 mm long, several corymbosely arranged. Flowers with involucral bracts pale yellow inside, light golden-brown outside; January to May and in September.
Life form -
Growth form
Growth support free-standing
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 1.0
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 edwardsii world distribution map, present in South Africa and Zimbabwe

Identifiers

LSID urn:lsid:ipni.org:names:900011-1
WFO ID wfo-0000131472
COL ID 3K6MM
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Helichrysum edwardsii