Plant Image
Willow Dells Tr - SS

Yavapai County Native & Naturalized Plants

Oenothera caespitosa - tufted evening primrose

Plant Form: Forb

Family: Onagraceae

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Iron Springs Rd
Willow Dells Tr
Willow Dells Tr
Iron Springs Rd
Granite Mtn - Tr 308
Plant - summer
Iron Springs Rd
Forb Plant Description

Origin: Native   Life Cycle: Perennial
General Desc: Like other evening primroses, this fragrant flower opens in late afternoon, blooms through the night and closes by the next morning, withering to pink or red-violet. Pollinated by hawk moths. It is evergreen in most habitats.
Height: 2 to 8 inches


Habitat Description: Desert scrub, grasslands, interior chaparrral and oak/pinon/juniper woodlands; on rocky slopes, among ponderosa pines.
Plant Communities: Desert Scrub, Interior Chaparral, Semidesert Grasslands, Pinyon Juniper Woodland, Montane Conifer Forest, Disturbed Areas
Elevation: 3000 - 7500 feet

Flower Characteristics

Color: White     Shape: Regular not in clusters     Tubular: N     Flowering Period: Apr - Sep
Description: White flower, turning pinkish-white, 4 inches wide, with four wide heart-shaped petals and four long, thin, pointed, pink sepals that curve downward.

Leaf and Stem Characteristics

Leaf Color: Grayish-green     Leaf Type: Simple     Leaf Shape: Narrow     Leaf Margin: Toothed     Leaf Attachment: Basal     Leaves Clasp: N
Hairs: No     Spines: N
Leaf Description: Lance-shaped to narrowly elliptical basal leaves, 2 to 8 inches long, have irregular teeth or are lobed.

Fruit and Seed Characteristics

Fruit Color: brown   
Fruit Type: Capsule
Fruit Notes: Cylindrical brown capsule, turning woody, 1/2 to 3 inches long, is hairy, knobby and angled.

  Arizona Cooperative Extension
Yavapai County
840 Rodeo Dr #C
Prescott, AZ 86305
(928) 445-6590
Version 3.1  
Last Updated: June 15, 2013  
Content Questions/Comments: Email Jeff Schalau  
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