Youngia conjunctiva Babcock & Stebbins

Species

Angiosperms > Asterales > Asteraceae > Youngia

Characteristics

Herbs 4-12 cm tall, perennial, rosulate. Taproot and short woody caudex with residues of old leaf bases. Stem solitary, erect, branched apically or from near base, densely tomentose but glabrescent with age, distantly leafy. Rosette leaves oblanceolate, 1.5-6 × 0.5-1.2 cm, both faces tomentulose to glabrescent, base attenuate into a petiole-like portion and semiamplexicaul, margin sinuately to runcinately dentate and/or runcinately pinnatifid, apex obtuse to acute; lobes (if present) narrowly triangular, apex acute to acuminate. Stem leaves none or few, similar to rosette leaves but smaller, with narrower lobes, and apex acuminate. Synflorescence laxly corymbiform, with 4-8 capitula. Capitula with 13-18 florets; peduncle 1-6 cm, slender, densely tomentose. Involucre cylindric to campanulate, 1-1.1 cm. Phyllaries dark to blackish green, ciliate otherwise abaxially glabrous, apex acute; outer phyllaries lanceolate to linear-lanceolate, longest 1/3-1/2(-2/3) as long as inner ones; inner phyllaries 10-12, adaxially densely pubescent with appressed shiny hairs. Anther tube apically or entirely greenish. Style yellow upon drying. Achene not seen when mature. Pappus white, ca. 7 mm. Fl. Jul-Aug.
Life form perennial
Growth form herb
Growth support -
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.04 - 0.12
Root system tap-root
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Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
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Nitrogen fixer -
Photosynthetic pathway -

Environment

Light -
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Usage

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

Cultivation

Mode -
Germination duration (days) -
Germination temperacture (C°) -
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Productivity -

Distribution

Youngia conjunctiva world distribution map, present in China

Identifiers

LSID urn:lsid:ipni.org:names:261148-1
WFO ID wfo-0000136714
COL ID 5CSH4
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Crepis parva Youngia conjunctiva Pseudoyoungia conjuctiva Tibetoseris parva Youngia parva Tibetoseris conjunctiva Pseudoyoungia parva