Chaenactis glabriuscula var. megacephala A.Gray

Yellow pincushion (en)

Variety

Angiosperms > Asterales > Asteraceae > Chaenactis > Chaenactis glabriuscula

Characteristics

Plants 15–40 cm; proximal indument grayish, arachnoid, early glabrescent. Stems mostly 1–5, ascending to erect; branches mainly proximal. Leaves basal (withering) and cauline, 1–8 cm; largest blades ± plane, scarcely succulent, usually 1-pinnately lobed; lobes 2–7 pairs, ± remote, ± plane or terete. Heads mostly 1–3 per stem. Peduncles 5–20 cm. Involucres ± hemispheric to broadly cylindric. Phyllaries: longest 7–9 × 2–3 mm; outer glabrescent in fruit. Florets: inner corollas 5–8 mm. Cypselae 5–8.5 mm; pappi of 4(–5) scales in 1 series, longest scales mostly 5–8 mm, lengths ± 0.9(–1) times corollas.
Life form annual
Growth form herb
Growth support -
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.15 - 0.4
Root system -
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
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) 30 - 70
Germination temperacture (C°) 3
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -18
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Distribution

Chaenactis glabriuscula var. megacephala world distribution map, present in United States of America

Identifiers

LSID urn:lsid:ipni.org:names:53872-2
WFO ID wfo-0000126175
COL ID 5MZF3
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Chaenactis glabriuscula var. megacephala