Helichrysum nanum Klatt

Species

Angiosperms > Asterales > Asteraceae > Helichrysum

Characteristics

A mat-forming perennial herb, main branches stoloniferous, slender (±1.5 mm diam.), nude, rooting, producing numerous erect dwarf shoots with closely rosetted leaves, flowering stems terminal to each rosette, solitary, erect, 50-120 mm high, simple or very rarely forked, closely leafy. Leaves stiff, erect, up to 35 mm long, ±1 mm broad, linear, apex obtuse, base broadened, clasping, margins strongly revolute, both surfaces enveloped in silvery, sericeous, closely felted indumentum. Heads homogamous, cylindric, 4-5 x 1.5 mm, many felted together in small corymbose clusters, these congested, but not felted, in a terminal cymose-corymbose cluster 15-20 mm across. Involucral bracts in ±2-3 series, subequal, loosely imbricate, outer brownish, inner tipped bright canary-yellow, about equalling flowers, not radiating, translucent. Receptacle smooth. Flowers 4-6, yellow. Achenes ±1 mm long, obscurely 5-ribbed, glabrous. Pappus bristles ±5, slender, tips shortly plumose, bases nude, not cohering. Flowers in March and April, sometimes as late as July.
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Perennial herb, mat-forming; main branches stoloniferous, nude, producing many erect dwarf shoots; flowering stems terminal, solitary, erect, 50-120 mm high, simple, closely leafy. Leaves crowded in rosettes and spread along stem, stiff, erect; blade linear, up to 35 x ± 1 mm, apex obtuse, base broad, clasping, margins strongly revolute; both sides with silvery, silky, closely felted indumentum. Heads discoid, cylindric, 4-5 x 1.5 mm, many felted together in small, congested corymbose clusters, not felted, in a terminal, cymose-corymbose cluster. Involucral bracts in 2 or 3 series; subequal, loosely imbricate, outer brown, tips very acute; inner tipped bright yellow, ± equalling florets, translucent, not radiating, stereome divided. Receptacle epaleate, smooth. Flowers: disc florets only, 4-6; corolla narrowly funnel-shaped, yellow; Feb.-Apr., Jun., Jul. Fruit with cypsela (and ovary) glabrous. Pappus of ± 5 bristles, slender, tips shortly plumose, bases nude, not cohering.
Mat-forming, perennial herb, main branches stoloniferous, nude, many erect dwarf shoots with closely rosetted leaves, stems terminal, solitary, erect, 50-120 mm high, simple, closely leafy. Leaves stiff, erect, up to 35 mm long, linear, apex obtuse, base broad, clasping, both sides with silvery, silky, closely felted indumentum. Capitula cylindric, 1-5 x 1.5 mm, clusters congested, not felted, in a terminal, cymose-corymbose cluster 15-20 mm in diam.; involucral bracts in 2 or 3 series, outer brownish, inner tipped bright yellow, translucent. Receptacle smooth. Flowers 4-6, yellow. Flowering time Mar., Apr. Pappus of ± 5 bristles, slender, not cohering. Cypselae ± 1 mm long, obscurely 1-ribbed.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.05 - 0.12
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) 9-11

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 nanum world distribution map, present in Lesotho and South Africa

Identifiers

LSID urn:lsid:ipni.org:names:213079-1
WFO ID wfo-0000018596
COL ID 3K6ZR
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Helichrysum nanum