Helianthella californica A.Gray

California helianthella (en)

Species

Angiosperms > Asterales > Asteraceae > Helianthella

Characteristics

Plants 15–60 cm. Cauline leaves: (nearly all opposite or mostly alternate) largest proximal to mid stems; blades ± 3-nerved, lance-ovate or oblong-lanceolate to lanceolate or linear, 5–26 cm, faces ± hirsutulous to scaberulous or glabrescent. Heads usually borne singly, sometimes 2–3+, erect. Involucres hemispheric, 15–25 mm diam. Phyllaries lanceolate (sometimes outer 2–3 foliaceous; margins usually ciliate, abaxial faces densely hairy or glabrate). Paleae chartaceous, relatively firm. Ray florets (10–)12–16; laminae 15–20+ mm. Disc corollas yellow. Cypselae strongly compressed, obovate-cuneate to oblong (winged or almost wingless, margins ciliate, apices deeply notched, faces glabrous); pappi 0 or 2 ± subulate scales plus 0–4 shorter scales.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.15 - 0.6
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) 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 -

Images

Helianthella californica unspecified picture

Distribution

Helianthella californica world distribution map, present in United States of America

Identifiers

LSID urn:lsid:ipni.org:names:211940-1
WFO ID wfo-0000022668
COL ID 6LHZY
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Helianthella californica Helianthella californica var. californica

Lower taxons

Helianthella californica subsp. californica Helianthella californica subsp. shastensis Helianthella californica subsp. nevadensis