Lapsanastrum uncinatum (Stebbins) Pak & K.Bremer

Species

Angiosperms > Asterales > Asteraceae > Lapsanastrum

Characteristics

Herbs 5-10 cm tall, ?annual, rosulate, glabrous. Stems several, to 15 cm, slender, decumbent, branched in apical half, almost leafless. Rosette leaves oblanceolate, 4-10 × 1-1.5 cm, pinnatisect to lyrately pinnatisect, base attenuate into petiole-like portion, margin sinuate-dentate; lateral lobes 2-4 pairs, triangular to ovate; terminal lobe ovate, much larger than lateral ones, apex ± rounded and mucronulate. Stem leaves 0 or 1, similar to rosette leaves but reduced in size. Synflorescence laxly corymbose, with few to several capitula. Capitula nodding in fruit, with 10-12 florets; peduncle capillaceous, 1.5-5 cm. Involucre cylindric and 5-6 mm at anthesis, cylindric, campanulate, or obovoid and to 6.5 mm in fruit. Outer phyllaries 3 or 4, triangular-ovate, 1-1.5 mm; inner phyllaries 5(or 6). Achene straw-colored to reddish yellow, body ca. 3 mm, minutely papillose, 2-4 main ribs apically prolonged into slender hooked 1.2-2.2 mm appendages. Fl. and fr. Apr.
Life form annual
Growth form herb
Growth support -
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.05 - 0.1
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Rooting depth (meter) -
Root diameter (meter) -
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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 -
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Optimum temperature (C°) -
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Productivity -

Distribution

Lapsanastrum uncinatum world distribution map, present in China

Identifiers

LSID urn:lsid:ipni.org:names:981303-1
WFO ID wfo-0000000843
COL ID 6NY66
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Lapsana uncinata Lapsanastrum uncinatum