Helichrysum tricostatum Less.

Species

Angiosperms > Asterales > Asteraceae > Helichrysum

Characteristics

Shrub or subshrub up to 1.5 m tall, branches long, slender, young parts thinly white-woolly, leafy. Leaves mostly 15-30 x 5-8 mm, reduced and more distant upwards, oblanceolate to narrowly elliptic, linear-lanceolate upwards, apex acute, mucronate, base narrowed, minutely petiolate, margins subrevolute, both surfaces thinly greyish-white woolly, Heads homogamous, campanulate, ±4 x 3 mm, woolly at base, many in terminal compact corymbose panicles. Involucral bracts in 5 series, imbricate, graded, inner about equalling flowers, oblong, translucent, tips rounded, subopaque, convex, glossy, straw-coloured, not radiating. Receptacle with fimbrils equalling or exceeding ovaries. Flowers 18-26. Achenes 1 mm long, cylindric, obscurely angled, glabrous. Pappus bristles many, about equalling corolla, scabrid, barbellate above, bases cohering lightly by patent cilia.
More
Straggling shrub, up to 1.5 m tall. Leaves oblanceolate to oblong, mostly 15-30 x 5-8 mm, grey-woolly, margins slightly revolute, minutely petiolate. Flowerheads in compact corymbs, disciform, campanulate, ± 4 mm long, bracts 5-seriate, rounded, straw-yellow, bracts subglabrous, florets 15-30.
Straggling, grey-woolly shrublet to 1.5 m. Leaves spreading, oblanceolate to oblong, grey-woolly, margins slightly revolute. Flower heads disciform, many in compact, terminal corymbs, campanulate, straw-yellow, ± 4 x 3 mm, bracts subglabrous, florets 15-30, ovary glabrous.
Life form -
Growth form shrub
Growth support free-standing
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 1.5
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 5-6
Soil acidity -
Soil nutriment -
Hardiness (USDA) 9-11

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 tricostatum world distribution map, present in South Africa

Identifiers

LSID urn:lsid:ipni.org:names:213438-1
WFO ID wfo-0000006189
COL ID 3K7D4
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Helichrysum tricostatum Gnaphalium tricostatum