Helichrysum trilineatum Dc.

Species

Angiosperms > Asterales > Asteraceae > Helichrysum

Characteristics

Twiggy rounded shrub ±0.15-  high, old branches bare, rough with leaf scars, branchlets greyish-white woolly, closely leafy. Leaves 3-25 x 1-5 mm, linear or oblong, apex mucronate, acute, subacute or obtuse, but generally appearing very blunt because of the recurved tip, base broad, half-clasping, margins revolute, upper surfaces minutely gland-dotted, glabrous, cobwebby or greyish-white woolly, lower surface white-woolly, ribbed by the parallel veins. Heads heterogamous or rarely homogamous, campanulate, 4-6 mm long, 4-8 mm across the radiating bracts, often woolly or cobwebby at the base, many in terminal compact corymbose clusters. Involucral bracts in ±5 series, graded, closely imbricate, pellucid, outer pale golden-brown, inner more or less equalling flowers, tips obtuse, bright canary-yellow, minutely radiating. Receptacle honeycombed. Flowers 25-60, (0-)4-13 female, 19-53 homogamous. Achenes ±1 mm, barrel-shaped, with duplex hairs. Pappus bristles many, about equalling corolla, scabrid, bases cohering by patent cilia. Flowers mainly from August to February, but can be found in flower in almost any month.
More
Shrub, up to 1 m high; rounded, old branches bare, rough with leaf scars, young branchlets greyish white-woolly, closely leafy. Leaves: blade linear or oblong, 3-25 x 1-5 mm, apex mucronate, acute, subacute or obtuse, tip recurved, base ± clasping, margins revolute; upper surface minutely gland-dotted, glabrous to greyish white-woolly, lower surface white-woolly, ribbed by parallel veins. Heads mostly disciform, rarely discoid, campanulate, 4-6 x 4-8 mm, many in compact, corymbose clusters. Involucral bracts in 5 series, graded; outer pale golden-brown, closely imbricate; inner ± equalling florets, tips obtuse, bright yellow, more loosely imbricate; minutely radiating, stereome divided. Receptacle epaleate, honeycombed. Flowers: mostly female and disc florets 25-60, rarely only disc florets, 0-13 female; corolla of disc florets narrowly campanulate above, yellow; mainly Aug.-Apr. Fruit with cypsela hairy. Pappus of many barbellate bristles, bases cohering by patent cilia.
Rounded shrub, 150-1000 mm high. Old branches bare, rough with leaf scars, young branchlets greyish-white, woolly, closely leafy. Leaves 3-25 x 1-5 mm, linear or oblong, tip recurved, base ± clasping, margins revolute, upper surface minutely gland-dotted, glabrous to greyish-white, woolly, lower surface white-woolly, ribbed by parallel veins. Capitula mostly heterogamous, campanulate, 4-6 mm long, many in compact clusters; involucral bracts in 5 series, outer pale golden-brown, inner bright yellow. Flowers 25-60. Flowering time mainly Aug.-Feb. Pappus of many bristles. Cypselae 1 mm long, barrel-shaped.
Rounded, twiggy shrub, up to 1 m tall, closely leafy on young parts but leafless on older parts. Leaves narrowly oblong, mostly 3-25 x 1-5 mm, apically hooked, glandular-haired and glabrescent above but white-felted beneath, with 3 parallel veins, margins revolute. Flowerheads in compact, rounded corymbs, disciform (rarely discoid), campanulate, 4-6 mm long, bracts 5-seriate, obtuse, bright canary yellow, outer silky below, florets 25-60.
Life form -
Growth form shrub
Growth support free-standing
Foliage retention evergreen
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) 0.5 - 1.0
Mature height (meter) 0.5 - 1.0
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 1-3
Soil texture 7-8
Soil acidity 4-8
Soil nutriment -
Hardiness (USDA) 10-10

Usage

Uses medicinal
Edible -
Therapeutic use Fuel (unspecified)
Human toxicity -
Animal toxicity -

Cultivation

Can be grown by cuttings.
Mode cuttings
Germination duration (days) 7 - 10
Germination temperacture (C°) 18 - 23
Germination luminosity light
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Images

Helichrysum trilineatum unspecified picture

Distribution

Helichrysum trilineatum world distribution map, present in Lesotho and South Africa

Identifiers

LSID urn:lsid:ipni.org:names:213439-1
WFO ID wfo-0000035459
COL ID 3K7D5
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Gnaphalium alveolatum Helichrysum trilineatum Gnaphalium trilineatum Helichrysum alveolatum