WorldFloraDB - Helenium elegans var. amphibolum

Characteristics

Plants 25–70 cm. Leaves: proximal blades usually irregularly toothed or lobed; mid and distal leaves usually entire. Heads 20–50. Peduncles 3–14 cm. Involucres 7–11 × 8–12(–13) mm. Ray florets 13–17; corollas 6.3–15(–19) × 2.2–5.5(–8.7) mm. Disc florets 250–500(–700+). Cypselae 0.7–1 mm; pappi 0.1–0.3(–0.4) mm. 2n = 26.

Life form

annual

Growth form

herb

Growth support

-

Foliage retention

-

Sexuality

hermaphrodite

Pollination

-

Spread

-

Mature width (meter)

-

Mature height (meter)

0.25 - 0.7

Root system

-

Rooting depth (meter)

-

Root diameter (meter)

-

Flower color

Blooming months

Jan	Feb	Mar
Apr	May	Jun
Jul	Aug	Sep
Oct	Nov	Dec

Fruit color

-

Fruiting months

-

Nitrogen fixer

-

Photosynthetic pathway

-

Environment

Light
Soil humidity
Soil texture
Soil acidity	-
Soil nutriment	-
Hardiness (USDA)	-

Usage

Uses	medicinal
Edible	-
Therapeutic use	Pediculicide (unspecified), Sore (unspecified), Tabes (unspecified), Sternutatory (unspecified)
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	-

Identifiers

LSID	urn:lsid:ipni.org:names:118724-2
WFO ID	wfo-0000111655
COL ID	-
BDTFX ID	-
INPN ID	-
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Helenium mexicanum Helenium amphilobum Helenium elegans var. amphibolum

WorldFloraDB 2024

Helenium elegans var. amphibolum (A.Gray) Bierner