Youngia gracilipes (Hook.F.) Babc. & Stebbins

Species

Angiosperms > Asterales > Asteraceae > Youngia

Characteristics

Herbs 3-10[-15] cm tall, perennial, rosulate, subacaulescent or dwarf, with taproot and lateral shoot-bearing roots giving rise to secondary rosette shoots. Caudex short, with residues of old leaf bases, not or weakly branched. Rosette leaves oblanceolate, elliptic, or narrowly elliptic, 2-5 × 0.3-1 cm, pinnatifid to pinnatipartite and sometimes lyrately so, sparsely pubescent, base attenuate into a petiole-like portion, margin entire to weakly sinuate-dentate; lateral lobes 3-6 pairs, opposite to subopposite, ovate to elliptic but basal lobes usually toothlike, apex rounded to obtuse; terminal lobe elliptic, apex rounded to obtuse. Capitula 3-14, clustered, directly from axils of rosette leaves or on a stalk, with 12-20(-30?) florets; stalk 1-4 cm, capillaceous, branched, sometimes reduced-leafy; peduncle capillaceous, 1-8 cm, ± pilose to apically ± tomentose, ± bracteate. Involucre broadly cylindric, 8-10 mm. Phyllaries dark to blackish green, abaxially glabrous; outer phyllaries lanceolate to linear-lanceolate, longest to 1/3 as long as inner ones, apex acute; inner phyllaries 8-10, adaxially glabrous, margin scarious, subapically usually plane, apex acute. Anther tube greenish to blackish. Style yellow upon drying. Achene dark, fusiform, ca. 4 mm, apex truncate. Pappus white, 5-7 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) 0.2
Root system creeping-root 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) 7-11

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 gracilipes world distribution map, present in Bhutan, China, India, and Nepal

Identifiers

LSID urn:lsid:ipni.org:names:261121-1
WFO ID wfo-0000063739
COL ID 5CSFT
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Tibetoseris gracilipes Youngia gracilipes Tibetoseris angustifolia Pseudoyoungia angustifolia Crepis gracilipes Pseudoyoungia gracilipes Tibetoseris gracilipes subsp. duthiei Pseudoyoungia gracilipes subsp. duthiei