Species Detail Forb

Flower		Yavapai County Native & Naturalized Plants Epilobium brachycarpum - tall annual willowherb Synonyms: Epilobium paniculatum Other Common Names: panicle willowweed, tall fireweed, autumn willowherb Plant Form: Forb or Subshrub Family: Onagraceae
Flower


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Flowers Max Licher @http://swbiodiversity.org, Usage Rights: Creative Commons Attribution-ShareAlike (CC BY-SA)	Leaves and flowers 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)

Forb Plant Description

Origin: Native Life Cycle: Annual
General Desc: Highly variable, erect, many-branched plants have a large tap root and hybridize freely.
Identification notes: Plant 8 inches to 6 feet tall; leaves glandular above, fine short hairs below; sepals 1/16 to 5/16 inch, petals 1/8 to 1/2 inch; seeds 1/16 to 1/8 inch; seed hair-tuft present.
Height: 1 to 6 feet

Habitat

Habitat Description: Dry soils and open areas in woodlands, grasslands, and roadsides.
Plant Communities: Desert Scrub, Interior Chaparral, Semidesert Grasslands, Pinyon Juniper Woodland, Montane Conifer Forest, Disturbed Areas
Elevation: 1000 - 8500 feet

Flower Characteristics

Color: Pink to light purple Shape: Regular in elongated clusters Tubular: Y Flowering Period: Jun - Sep
Description: Racemes terminate in numerous branches of flowers which have 4 deeply notched petals. The calyx tube is narrow and funnel shaped.

Leaf and Stem Characteristics

Leaf Color: Green Leaf Type: Simple Leaf Shape: Narrow Leaf Margin: Smooth Leaf Attachment: Alternate Leaves Clasp: N
Hairs: Leaves and stems Spines: N
Leaf Description: Lower stems are smooth with a peeling outer layer. There are some rigid hairs on the upper stems.

Fruit and Seed Characteristics

Fruit Color: Light brown
Fruit Type: Capsule
Fruit Notes: Fruits are 4-celled elongated capsules.
Seed Notes: Seeds are tipped with a prominent tuft of long soft hairs which are a distinguishing feature between mustards and willowweeds.


	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 Legal Disclaimer