Ratibida peduncularis Barnhart

Naked mexicanhat (en)

Species

Angiosperms > Asterales > Asteraceae > Ratibida

Characteristics

Perennials, to 115+ cm; taprooted. Leaves 1.6–14 × 1–6.5 cm, 2-pinnatifid to lyrate-pinnate, lobes 3–10, narrowly linear-lanceolate to narrowly ovate, 0.8–4.5 mm wide, faces hirsute and gland-dotted. Heads 1–12+, held well beyond leaves. Peduncles 14–45+ cm (ribs tan, prominent). Phyllaries 7–14, outer linear, 6–12 × 0.8–1.5 mm, inner lance-ovate, 1–5 × 0.8–1.5 mm. Paleae 3–4.3 × 1.5–3 mm, resin glands oval, 1–1.8 mm. Ray florets 4–14; corollas yellow, purplish yellow, or maroon, often bicolor (maroon/yellow), laminae mostly ovate to elliptic, 5–15 × 4–12 mm. Discs columnar, 15–70 × 8–13 mm. Disc florets 200–400+; corollas greenish yellow, often purplish distally, 2.5–3 mm; style branches ca. 1.8 mm, proximal 1/2 stigmatic, apices subulate. Cypselae oblong, 2.3–5 × 1.2–3 mm, abaxial margins narrowly winged to fimbriate or pectinate-fimbriate, adaxial margins pectinate-fimbriate; pappi (tan) of 1–2 toothlike projections.
Life form perennial
Growth form herb
Growth support free-standing
Foliage retention -
Sexuality hermaphrodite
Pollination -
Spread -
Mature width (meter) -
Mature height (meter) 0.8 - 1.15
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 1-5
Soil texture -
Soil acidity -
Soil nutriment -
Hardiness (USDA) 5-11

Usage

Uses -
Edible -
Therapeutic use -
Human toxicity -
Animal toxicity -

Cultivation

Mode -
Germination duration (days) 21 - 42
Germination temperacture (C°) 20 - 23
Germination luminosity -
Germination treatment -
Minimum temperature (C°) -
Optimum temperature (C°) -
Size -
Vigor -
Productivity -

Distribution

Ratibida peduncularis world distribution map, present in Mexico and United States of America

Identifiers

LSID urn:lsid:ipni.org:names:217878-2
WFO ID wfo-0000022487
COL ID 4RLZQ
BDTFX ID -
INPN ID -
Wikipedia (EN)
Wikipedia (FR)

Synonyms

Ratibida peduncularis Lepachys peduncularis Lepachys peduncularis var. peduncularis Ratibida peduncularis var. peduncularis

Lower taxons

Ratibida peduncularis var. picta