Crepidiastrum akagii (Kitag.) J.W.Zhang & N.Kilian

Species

Angiosperms > Asterales > Asteraceae > Crepidiastrum

Characteristics

Shrublets 10-25 cm tall, cushion-forming, rosulate. Taproot woody. Caudex woody, branching with age, densely covered with residues of old leaf bases. Stems many, slender, rigid, hardened, erect, repeatedly, dichotomously, intricately, and divaricately branched almost from base, glabrous. Rosette leaves oblanceolate to narrowly elliptic, 2-8 × 0.5-3 cm, glabrous, pinnatifid to pinnatisect, basally attenuate; lateral lobes 5 or 6 pairs, broadly triangular toothlike to narrowly linear, unequal in length, margin entire, apex acute. Stem leaves few, much smaller, otherwise similar to basal leaves or linear to linear-subulate, reduced in size, undivided, and often bractlike. Synflorescence of each stem divaricately corymbiform, with some capitula. Capitula with 10-12 florets. Involucre narrowly cylindric, 8-9 mm. Phyllaries dark green, abaxially glabrous to slightly puberulent, frequently crested or corniculate below apex; outer phyllaries few, narrowly ovate to lanceolate, longest ca. 2 mm, apex acute; inner phyllaries 8, apex ± obtuse. Achene black to blackish, fusiform, 3.5-5.5 mm, with 10 ribs, shortly scabrid, apex attenuate. Pappus white, 4-6 mm, caducous. Fl. and fr. Jul-Sep. 2n = 42.
Life form perennial
Growth form
Growth support -
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.1 - 0.24
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) 5-10

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

Crepidiastrum akagii world distribution map, present in China, Kyrgyzstan, Liberia, Mongolia, and Tajikistan

Identifiers

LSID urn:lsid:ipni.org:names:77117797-1
WFO ID wfo-0001043255
COL ID ZD69
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Crepidifolium akagii Crepidiastrum tenuicaule Youngia tenuicaulis Crepidifolium tenuicaule Geblera akagii Youngia nansiensis Youngia akagii Youngia ordosica Crepis tenuifolia subsp. tenuicaulis Youngia tenuifolia subsp. tenuicaulis Crepidiastrum akagii