Youngia hastiformis C.Shih

Species

Angiosperms > Asterales > Asteraceae > Youngia

Characteristics

Herbs 10-30 cm tall, perennial. Taproot with lateral shoot-bearing roots. Stem solitary, slender, erect, branched from lower third or higher up, glabrous, sparsely leafy. Basal and lower stem leaves obovate to oblanceolate, 1-5.5 × 0.5-2 cm, glabrous, base attenuate into a petiole-like portion; first leaves undivided and sinuate-dentate; following leaves runcinately or lyrately pinnatipartite with small lateral lobes and a large obovate terminal lobe; later leaves pinnatisect with lateral lobes 1-4 pairs, opposite or alternate, ± triangular to lanceolate, and apex acute to acuminate, with terminal lobe narrowly triangular to triangular-hastate and small. Middle stem leaves (if any) similar to lower stem leaves; upper stem leaves linear-elliptic to linear, reduced in size. Synflorescence laxly corymbiform, with usually 5-12 capitula. Capitula with 9-14 florets; peduncle capillaceous, 0.5-5 cm, glabrous or sparsely white arachnoid hairy. Involucre narrowly cylindric, ca. 7 mm. Phyllaries abaxially glabrous; outer phyllaries ovate to lanceolate, longest 1-2 mm, apex acute; inner phyllaries 8, adaxially sparsely appressed hairy, midvein subapically plane (or somewhat crested or corniculate?), apex ± acute. Achene dark brown, fusiform, 2-2.5 mm, ribs finally spiculate, apex attenuate. Pappus white, ca. 5 mm. Fl. and fr. Apr-Jul.
Life form perennial
Growth form herb
Growth support -
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.1 - 0.3
Root system tap-root
Rooting depth (meter) -
Root diameter (meter) -
Flower color -
Blooming months -
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Fruiting months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Nitrogen fixer -
Photosynthetic pathway -

Environment

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

Usage

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

Cultivation

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

Distribution

Youngia hastiformis world distribution map, present in China

Identifiers

LSID urn:lsid:ipni.org:names:982904-1
WFO ID wfo-0000028013
COL ID 5CSFY
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Youngia hastiformis