Plant Image
Flowers
Willow Lake Tr - Sue Smith


Yavapai County Native & Naturalized Plants

Mirabilis pumila - dwarf four o'clock

Synonyms: Mirabilis albida, Allionia pumila, Oxybaphus pumilus
Other Common Names: white four o'clock, little four-o'clock
Plant Form: Forb or Subshrub

Family: Nyctaginaceae


   
 
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Bracts and flowers
Willow Lake Tr
Sue Smith
Flowers
Willow Lake Tr
Sue Smith
Leaves and stem
Willow Lake Tr
Sue Smith
Leaves
Willow Lake Tr
Sue Smith
Plant - summer
Willow Lake Tr
Sue Smith
Plant - summer
Willow Lake Tr
Sue Smith
Forb Plant Description

Origin: Native   Life Cycle: Perennial
General Desc: Stems few to many from a woody root, erect to decumbent, much branched, sparsely to densely leafy, smooth to hairy.
Identification notes: Leaf blades barely longer than wide; stems much branched, sticky with long soft hairs; 5-parted calyx is pale pink; whorl of united bracts is enlarged and papery in fruit; fruit strongly 5-angled.
Height: 4 to 20 inches


Habitat

Habitat Description: Meadows, roadsides, canyons, pinyon-juniper woodlands, ponderosa pine forests, sandy soils.
Plant Communities: Desert Scrub, Interior Chaparral, Semidesert Grasslands, Pinyon Juniper Woodland, Montane Conifer Forest, Disturbed Areas
Elevation: 3000 - 7500 feet


Flower Characteristics

Color: Pale pink to purple     Shape: Bell-shaped in round clusters     Tubular: N     Flowering Period: Jun - Sep
Description: Broadly funnel-shaped.


Leaf and Stem Characteristics

Leaf Color: Green     Leaf Type: Simple     Leaf Shape: Round or oval     Leaf Margin: Smooth     Leaf Attachment: Basal and opposite     Leaves Clasp: N
Hairs: Leaves and stems     Spines: N
Leaf Description: Leaves basal and on stems, thin and fleshy to thick and leathery, green to blue-gray, smooth to sticky and hairy, with or without stem. Leaf blades mostly triangular, sometimes ovate, to 2-1/3 inches long and about as wide.


Fruit and Seed Characteristics

Fruit Type: Achene
Fruit Notes: Ovoid, tapering on both ends with minute glandular hairs and 5 prominent ribs.
Seed Notes: Egg-shaped seed up to 1/2 inch long is attached at the narrow end.



  Arizona Cooperative Extension
Yavapai County
840 Rodeo Dr #C
Prescott, AZ 86305
(928) 445-6590
Version 8.0  
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Last Updated: Dec 13, 2022
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