Helichrysum cymosum subsp. cymosum (L.) D.Don

Subspecies

Angiosperms > Asterales > Asteraceae > Helichrysum > Helichrysum cymosum

Characteristics

A well-branched spreading subshrub up to 1 m tall, branches long, often decumbent at the base then erect, thinly greyish-white woolly, densely leafy, becoming pedunculoid upwards. Leaves very variable, mostly 8-15(-45) x 2-4(-15) mm, becoming smaller and more distant upwards, elliptic-oblong or linear-oblong, apex acute, sometimes acuminate, mucronate, slightly narrowed to a half-clasping, subdecurrent base, margins flat or subrevolute, upper surface clothed in thin silvery grey sericeous indumentum that will strip like a skin (and sometimes does), rarely woolly-felted, lower surface closely white-woolly. Heads heterogamous or sometimes homogamous, cylindric, mostly ±3 x 1 mm, sometimes up to 4.5 x 3 mm, many in compact cymes corymbose-paniculately arranged at the branch tips. Involucral bracts in ±4 series, graded, closely imbricate, inner about equalling flowers, not radiating, translucent, glossy, bright canary-yellow, tips generally smooth. Receptacle with fimbrils exceeding the ovaries. Flowers 6-12(-20), 0-4 female, 3-12(-20) homogamous, yellow. Achenes 0.75 mm, broadly cylindric, glabrous. Pappus bristles many, scabrid, bases cohering strongly by patent cilia.
More
Spreading subshrub, up to 1 m high, branches long, ± decumbent at base, then erect, thinly greyish white-woolly, densely leafy. Leaves very variable, 8-45 x 2-15 mm, smaller, fewer upwards, apex acute, mucronate, half-clasping, base subdecurrent, margins ± flat, lower surface closely white-woolly. Capitula mostly heterogamous, cylindric, ± 3 x 1 mm, many in compact cymes; involucral bracts in ± 4 series, graded, translucent, glossy, bright yellow. Receptacle fimbrils exceeding ovaries. Flowers 6-20, yellow. Flowering time Sept.-Apr. Pappus of many bristles. Cypselae 0.75 mm long, broadly cylindric.
Life form -
Growth form subshrub
Growth support -
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 1.0
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Flower color
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Nitrogen fixer -
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Environment

Light -
Soil humidity 4-6
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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
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Distribution

Helichrysum cymosum subsp. cymosum world distribution map, present in Equatorial Guinea, Saudi Arabia, South Africa, and Zambia

Identifiers

LSID urn:lsid:ipni.org:names:77179803-1
WFO ID wfo-0000074448
COL ID 5HM6L
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Gnaphalium cymosum Gnaphalium tricostatum Gnaphalium serratum Lepiscline cymosa Helichrysum cymosum subsp. cymosum