Dubyaea amoena (Hand.-mazz.) Stebbins

Species

Angiosperms > Asterales > Asteraceae > Dubyaea

Characteristics

Herbs to 7 cm tall, perennial, rosulate, acaulescent, with a taproot. Caudex short, ± subterranean, with 3-7 scapes. Rosette leaves oblanceolate to narrowly elliptic, 4-10(-12) × 1-3 cm, sinuate-dentate or lyrately pinnatifid to subpinnatisect; lateral lobes elliptic to triangular, gradually smaller toward leaf base, abaxially with dark brown multicellular uniseriate hairs on veins, adaxially glabrous, margin entire or very scarcely and shallowly mucronulate-dentate; terminal lobe ovate to triangular, apex rounded, acute, or shortly acuminate. Scapes sometimes with 1 or 2 linear bracts, with dense long dark brown stiff glandular hairs. Capitula erect, with 10-16 florets. Involucre narrowly campanulate, 1.5-1.8 × 0.7-1 cm. Phyllaries abaxially brownish purple and with deep brown long stiff glandular hairs on midvein; outer phyllaries narrowly triangular to linear-lanceolate, approaching inner ones closely in length, apex acute to obtuse; inner phyllaries 8-10. Florets blue to bluish purple. Achene brown to dark brown, 4.5-6.5 mm, with 5 main ribs, apex truncate. Pappus brown, 1-1.2 cm. Fl. and fr. Jul-Sep.
Life form perennial
Growth form herb
Growth support -
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.07
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 -
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Optimum temperature (C°) -
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Productivity -

Distribution

Dubyaea amoena world distribution map, present in China

Identifiers

LSID urn:lsid:ipni.org:names:202218-1
WFO ID wfo-0000117351
COL ID 8R8MX
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Lactuca amoena Dubyaea amoena