Heliomeris longifolia Cockerell

Longleaf false goldeneye (en)

Species

Angiosperms > Asterales > Asteraceae > Heliomeris

Characteristics

Annuals, 7–15 cm (taprooted). Stems strigose. Leaves usually opposite proximally, sometimes alternate (distal); blades lance-linear to linear, 10–160 × 1.5–8(–12) mm, margins ciliate to 1/4 their lengths, hairs mostly less than 0.5 mm, faces strigose to strigillose (hair bases narrowly tuberculate), abaxial often gland-dotted. Heads 6–25+. Peduncles 0.2–0.5(–2) cm, lengths 1/20–1/2 times leafy portions of stems. Involucres 6–14 mm diam. Phyllaries 3–6 mm. Paleae oblong, 4–4.5 mm, acute to cuspidate. Ray florets 12–14; laminae ± elliptic, 5–17 mm (glabrous or puberulent). Disc florets 50+; corollas 2.5–4 mm. Cypselae black or mottled, 1.8–2 mm.
Life form annual
Growth form herb
Growth support free-standing
Foliage retention deciduous
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.07 - 0.15
Root system tap-root
Rooting depth (meter) -
Root diameter (meter) -
Flower color
Blooming months
JanFebMar
AprMayJun
JulAugSep
OctNovDec
Fruit color -
Fruiting months -
Nitrogen fixer -
Photosynthetic pathway -

Environment

Light 7-9
Soil humidity 1-3
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 7-11

Usage

Uses fodder medicinal
Edible -
Therapeutic use Panacea (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 -

Distribution

Heliomeris longifolia world distribution map, present in Mexico and United States of America

Identifiers

LSID urn:lsid:ipni.org:names:119652-2
WFO ID wfo-0000016289
COL ID 3KBBG
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Viguiera longifolia Heliomeris longifolia Gymnolomia longifolia Viguiera longifolia var. longifolia Heliomeris longifolia var. longifolia

Lower taxons

Heliomeris longifolia var. annua