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Cliffe, Harry

Ratibida peduncularis

Ratibida peduncularis (Torr. & A. Gray) Barnhart

Naked Mexican Hat, Naked Prairie Coneflower

Asteraceae (Aster Family)

Synonym(s):

USDA Symbol: rape3

USDA Native Status: L48 (N)

A common, taprooted perennial native to sandy soils on the coastal plain of south-central US and northern Mexico. It forms showy colonies of plants about 3 feet tall. Ratibida peduncularis var. picta is endemic to Texas, less common than R. p. var. peduncularis, and bears maroon-colored ray flowers.

This species is often confused with the similar, but much more wide-ranging relative, Ratibida columnifera, but lacks stem leaves near the flower heads. The two species sometimes hybridize.

From the Image Gallery

2 photo(s) available in the Image Gallery

Plant Characteristics

Duration: Perennial
Habit: Herb
Root Type: Tap
Leaf Arrangement: Alternate
Leaf Shape: Lyrate
Leaf Pubescence: Hirsute , Strigose
Leaf Margin: Pinnatifid
Breeding System: Flowers Bisexual
Inflorescence: Head
Size Notes: To about 3 feet in height.
Leaf: Leaves bipinnatifid.
Flower: One to many radiate capitula on long (to about 18 inches) leafless peduncles.
Fruit: Fruit a cypsela topped by an off-white pappus with 1 or 2 dentate appendages. (Webref 3).

Bloom Information

Bloom Color: Yellow , Green , Purple
Bloom Time: Mar , Apr , May , Jun , Jul , Aug , Sep , Oct , Nov
Bloom Notes: Ray florets (4 to 12+) yellow, purplish-yellow or maroon. Disc florets greenish-yellow to purplish. (Webref 3).

Distribution

USA: LA , TX
Native Distribution: Southern Louisiana to eastern Tamaulipas, Mexico.
Native Habitat: A species native to the coastal plain and found on sandy soils.

Growing Conditions

Light Requirement: Sun
Heat Tolerant: yes
Soil Description: Sandy soils.
Conditions Comments: Sunny fields and roadsides on sandy soils.

Find Seed or Plants

Find seed sources for this species at the Native Seed Network.

From the National Organizations Directory

According to the species list provided by Affiliate Organizations, this plant is on display at the following locations:

Native Seed Network - Corvallis, OR

Wildflower Center Seed Bank

LBJWC-1184 Collected 2008-07-31 in Gaveston County by Lady Bird Johnson Wildflower Center

1 collection(s) available in the Wildflower Center Seed Bank

Web Reference

Webref 3 - Flora of North America (2014) Missouri Botanical Garden, St. Louis, MO & Harvard University Herbaria, Cambridge, MA.

Additional resources

USDA: Find Ratibida peduncularis in USDA Plants
FNA: Find Ratibida peduncularis in the Flora of North America (if available)
Google: Search Google for Ratibida peduncularis

Metadata

Record Modified: 2018-05-01
Research By: DEW and Joseph A. Marcus

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