Youngia sericea C.Shih

Species

Angiosperms > Asterales > Asteraceae > Youngia

Characteristics

Herbs 3-6 cm tall, perennial, rosulate, subacaulescent. Taproot and lateral shoot-bearing roots giving rise to secondary rosette shoots. Caudex short, unbranched or weakly branched, with residues of old leaf bases. Rosette leaves oblanceolate to narrowly elliptic, 2-5 × 0.4-1.5 cm, pinnatipartite, base attenuate into a petiole-like portion; lateral lobes 4 or 5 pairs, opposite to obliquely opposite, narrowly triangular, basally broadly falcate; terminal lobe narrowly elliptic, elliptic-triangular, or orbicular, apex acute, obtuse, or rounded. Capitula 3-9, clustered, directly from axils of rosette leaves or on a stalk, with 9-15 florets; stalk capillaceous, short, branched; peduncle capillaceous, 1-3 cm, arachnoid hairy to tomentose, ± bracteate. Involucre cylindric, ca. 1 cm. Phyllaries dark green in fruit, arachnoid hairy; outer phyllaries narrowly ovate to lanceolate, longest ca. 1/3 of inner ones, apex obtuse to acute; inner phyllaries ca. 8, adaxially glabrous, margin broadly white membranous, apex acute to obtuse. Achene dark brown to blackish, subfusiform, 3.5-4 mm, apex truncate. Pappus white, ca. 6 mm, persistent. Fl. and fr. Jun-Sep.
Life form perennial
Growth form herb
Growth support -
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.03 - 0.06
Root system tap-root
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months -
Fruit color -
Fruiting months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
Soil humidity -
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) -

Usage

Uses -
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Mode -
Germination duration (days) -
Germination temperacture (C°) -
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Distribution

Youngia sericea world distribution map, present in China

Identifiers

LSID urn:lsid:ipni.org:names:982903-1
WFO ID wfo-0000023702
COL ID 5CSHJ
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Youngia sericea Pseudoyoungia sericea Tibetoseris sericeus