Plant Image
Flowers


Yavapai County Native & Naturalized Plants

Tragia nepetifolia - catnip noseburn

Synonyms: Tragia nepetifolia var. setosa
Other Common Names: nose-burn, ortiguilla, ortiga
Plant Form: Forb or Subshrub

Family: Euphorbiaceae


   
 
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Fiower
Patrick Alexander @http://swbiodiversity.org, Usage Rights: Creative Commons Attribution-ShareAlike (CC BY-SA)
Leaves and fruit
Max Licher @http://swbiodiversity.org, Usage Rights: Creative Commons Attribution-ShareAlike (CC BY-SA)
Plant
Max Licher @http://swbiodiversity.org, Usage Rights: Creative Commons Attribution-ShareAlike (CC BY-SA)
Plant
Patrick Alexander @http://swbiodiversity.org, Usage Rights: Creative Commons Attribution-ShareAlike (CC BY-SA)
Fruit
Sue Carnahan @http://swbiodiversity.org, Usage Rights: CC BY-NC (Attribution-Non-Commercial)
Forb Plant Description

Origin: Native   Life Cycle: Perennial   Similar Species: Tragia ramosa
General Desc: Erect or trailing plant with slender stems and a twining growth habit. Leaves are narrow, covered with short, stinging hairs and have jagged margins. Tiny red to reddish-green flowers with yellow stamens grow in clusters at the top of the flower stalk.
Identification notes: Stems dark green or whitish, reddish or grayish; leaves simple, can be lobed basally, margins coarsely toothed to serrate; flower clusters terminal; glands sessile or absent; male flowers 8 to 40 per stalk, sepals reddish green, stamens 3 to 6, up to 10.
Height: To nearly 1 foot


Habitat

Habitat Description: Found in canyons, desert washes (areas with spiny shrubs and intermittent streams), open rocky slopes, hillsides, valley floors and pine-oak woodlands.
Plant Communities: Desert Scrub, Interior Chaparral, Semidesert Grasslands, Pinyon Juniper Woodland, Montane Conifer Forest
Elevation: 2500 - 7400 feet


Flower Characteristics

Color: Red to reddish-green     Shape: Regular in elongated clusters     Tubular: N     Flowering Period: Mar - Nov
Description: Male and female flowers grow on the same plant at the top of the flower stalk. 8 to 40 male flowers each with 3 or 4 leaf-like sepals and 0 petals grow above 1 to 2 female flowers with 6 sepals and 0 petals. Reddish-green sepals are bent backwards.


Leaf and Stem Characteristics

Leaf Color: Dark green     Leaf Type: Simple     Leaf Shape: Narrow     Leaf Margin: Toothed     Leaf Attachment: Alternate     Leaves Clasp: N
Hairs: Leaves and stems     Spines: N
Leaf Description: Leaves are often lance-shaped, at times triangular, are about 1/2 to 1-1/2 inches long and have rough, bristly hairs. Stems are dark green or whitish, reddish or grayish, have curvy tops and are covered with coarse hairs that sting the skin if touched.


Fruit and Seed Characteristics

Fruit Color: Reddish-green to green   
Fruit Type: Capsule
Fruit Notes: The fruit is dry, has 3 lobes (segments) each containing 1 seed, is about 1/4 to 1/2 inch wide and is covered with stiff, stinging hairs. When ripe, the fruit ejects the seeds forcefully in a process called "explosive dehiscence" widely dispersing them.
Seed Notes: The seeds are sphere-shaped, smooth, brownish-black and each is about 1/16 of an inch wide.



  Arizona Cooperative Extension
Yavapai County
840 Rodeo Dr #C
Prescott, AZ 86305
(928) 445-6590
Version 8.0  
http://cales.arizona.edu/yavapaiplants/SpeciesDetailForb.php  
Last Updated: Dec 13, 2022
Content Questions/Comments: Email Matt Halldorson  
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