Helianthella parryi A.Gray

Parry's dwarf-sunflower (en)

Species

Angiosperms > Asterales > Asteraceae > Helianthella

Characteristics

Plants 20–50 cm. Cauline leaves: largest proximal to mid stems; blades usually 5-nerved, oblanceolate or spatulate, faces rough-pubescent. Heads usually borne singly, sometimes 2–3+, ± nodding. Involucres hemispheric or broader, 15–20 mm diam. Phyllaries lanceolate to lance-linear (subequal, margins ciliate). Paleae scarious, relatively soft. Ray florets 8–14; (corollas pale yellow) laminae 25–30 mm. Disc corollas yellow. Cypselae strongly compressed, narrowly obovate (margins ciliate, faces strigose); pappi of 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) 0.2 - 0.5
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 medicinal
Edible -
Therapeutic use Dermatological Aid (root), Panacea (root)
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

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

Identifiers

LSID urn:lsid:ipni.org:names:211958-1
WFO ID wfo-0000024055
COL ID 3K58W
BDTFX ID -
INPN ID -
Wikipedia (EN) Link
Wikipedia (FR)

Synonyms

Helianthella parryi