Species Detail Forb

Flower heads		Yavapai County Native & Naturalized Plants Hymenoxys rusbyi - Rusby's rubberweed Synonyms: Actinella rusbyi, Picradenia rusbyi Plant Form: Forb or Subshrub Family: Asteraceae
Flower heads


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Leaf Patrick Alexander @http://swbiodiversity.org, Usage Rights: Creative Commons Attribution-ShareAlike (CC BY-SA)	Plants Max Licher @http://swbiodiversity.org, Usage Rights: Creative Commons Attribution-ShareAlike (CC BY-SA)	Phyllaries Max Licher @http://swbiodiversity.org, Usage Rights: Creative Commons Attribution-ShareAlike (CC BY-SA)

Forb Plant Description

Origin: Native Life Cycle: Perennial Similar Species: Hymenoxys richardsonii
General Desc: Woody base; numerous branches high on the flowering stems; plants may be smooth or hairy, lower stems purplish-red; many yellow flower heads in somewhat rounded clusters; basal and stem leaves, leafy to the tops of stems.
Identification notes: Moderately branched from woody base; stems usually purple-red-tinted at base and branched at upper part of the stem; flower heads numerous and small, 25 to 50 or more disc and 6 to 8 ray flowers; stems barely surpass the leaves; leaves simple or 3-lobed.
Height: 12 to 60 inches

Habitat

Habitat Description: Roadsides, open areas, edges of forests.
Plant Communities: Pinyon Juniper Woodland, Montane Conifer Forest, Disturbed Areas
Elevation: 5500 - 7000 feet

Flower Characteristics

Color: Yellow Shape: Daisy or dandelion-like in round clusters Tubular: N Flowering Period: Jul - Sep
Description: Multiple flower heads (up to 250) in flat-topped arrays; bracts surrounding floral heads typically bell-shaped; 6 to 8 ray flowers and 25 to 50 or more disc flowers per flower head.

Leaf and Stem Characteristics

Leaf Color: Green Leaf Type: Simple Leaf Shape: Narrow Leaf Margin: Lobed Leaf Attachment: Alternate Leaves Clasp: N
Hairs: Stems Spines: N
Leaf Description: Stems with or without hairs; leaves basal and on stems; leaf blades simple or lobed (lobes 3), without hairs, gland-dotted, narrow.

Fruit and Seed Characteristics

Fruit Type: Achene
Fruit Notes: Small one-seeded dry fruits do not split open at maturity; broader at top than base (upside down pyramid), narrow, topped by typically 5 rounded scales.


	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