Overview

Distribution

National Distribution

United States

Origin: Unknown/Undetermined

Regularity: Regularly occurring

Currently: Unknown/Undetermined

Confidence: Confident

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National Distribution

United States

Origin: Unknown/Undetermined

Regularity: Regularly occurring

Currently: Unknown/Undetermined

Confidence: Confident

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National Distribution

United States

Origin: Unknown/Undetermined

Regularity: Regularly occurring

Currently: Unknown/Undetermined

Confidence: Confident

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Global Range: UT (Carbon, Emery, Garfield, Grand, Kane, San Juan, Washington, and Wayne counties), OK, CO, AZ to TX and MEX.

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Physical Description

Morphology

Description

Perennials (sometimes flowering first year, sometimes rhizomatous), (5–)15–35+ cm. Leaves basal and cauline, mostly re-stricted to proximal 1/3–1/2; petiolar bases 0–5+ cm; blades mostly oblanceolate to spatulate, 3–6(–12) cm × 3–18(–30) mm, margins mostly pinnatifid, distal sometimes toothed or entire (rarely all linear, entire), faces closely strigillose to shaggily villous. Peduncles (4–)8–25+ cm. Phyllaries 20–30, ovate- to lanceolate-attenuate, 7–12+ mm, hispidulous to villous (hairs often jointed). Receptacular setae usually 1–3 mm, rarely wanting. Ray florets 0 or 5–14; corollas usually uniformly yellow, sometimes proximally and/or abaxially reddish, 10–25+ mm. Disc florets (30–)60–100+; corollas usually proximally ochroleucous or yellow and distally purplish, rarely wholly yellow, tubes 0.8–1 mm, throats campanulate to plumply urceolate, 3–4.5 mm, lobes broadly deltate to deltate-ovate, 0.5–1 mm, jointed hairs 0.3+ mm. Cypselae obpyramidal, 1–3 mm, hairs 1–2 mm, inserted at bases and on angles and faces; pappi of 8–11 lanceolate, aristate scales 3–7 mm (scarious bases 1.5–4 × 0.5–1.5 mm). 2n = 34.
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Diagnostic Description

Synonym

Gaillardia flava Rydberg; G. gracilis A. Nelson; G. mearnsii Rydberg; G. pinnatifida var. linearis (Rydberg) Biddulph
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Type Information

Isotype for Gaillardia gracilis A. Nelson
Catalog Number: US 969104
Collection: Smithsonian Institution, National Museum of Natural History, Department of Botany
Verification Degree: Original publication and alleged type specimen examined
Preparation: Pressed specimen
Collector(s): L. N. Goodding
Year Collected: 1902
Locality: Diamond Valley., Utah, United States, North America
  • Isotype: Nelson, A. 1904. Bot. Gaz. 37: 276.
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Isotype for Gaillardia globosa A. Nelson
Catalog Number: US 334387
Collection: Smithsonian Institution, National Museum of Natural History, Department of Botany
Verification Degree: Verified from the card file of type specimens
Preparation: Pressed specimen
Collector(s): D. T. MacDougal
Year Collected: 1898
Locality: Flagstaff., Coconino, Arizona, United States, North America
  • Isotype: Nelson, A. 1926. Univ. Wyoming Publ. Sci., Bot. 1: 135.
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Isotype for Gaillardia crassa Rydb.
Catalog Number: US 48570
Collection: Smithsonian Institution, National Museum of Natural History, Department of Botany
Verification Degree: Original publication and alleged type specimen examined
Preparation: Pressed specimen
Collector(s): C. G. Pringle
Year Collected: 1884
Locality: Foothills of Santa Rita Mountains., Arizona, United States, North America
  • Isotype: Rydberg, P. A. 1915. N. Amer. Fl. 34: 138.
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Isotype; Isotype for Gaillardia crassifolia A. Nelson & J.F. Macbr.
Catalog Number: US 254400
Collection: Smithsonian Institution, National Museum of Natural History, Department of Botany
Verification Degree: Original publication and alleged type specimen examined
Preparation: Pressed specimen
Collector(s): M. E. Jones
Year Collected: 1894
Locality: La Verken, Utah., Washington, Utah, United States, North America
Elevation (m): 1067
  • Isotype: Nelson, A. & Macbride, J. F. 1916. Bot. Gaz. 61: 46.; Isotype: Nelson, A. 1926. Univ. Wyoming Publ. Sci., Bot. 1: 137.
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Isotype for Gaillardia linearis Rydb.
Catalog Number: US 591657
Collection: Smithsonian Institution, National Museum of Natural History, Department of Botany
Verification Degree: Original publication and alleged type specimen examined
Preparation: Pressed specimen
Collector(s): E. A. Mearns
Year Collected: 1892
Locality: White Water., Chihuahua, Mexico, North America
  • Isotype: Rydberg, P. A. 1915. N. Amer. Fl. 34: 137.
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Ecology

Habitat

Comments: Blackbrush, shadscale, ephedra-Vanclevea, and pinyon-juniper communities at 915-1830 m.

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Conservation

Conservation Status

National NatureServe Conservation Status

United States

Rounded National Status Rank: NNR - Unranked

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NatureServe Conservation Status

Rounded Global Status Rank: TNR - Not Yet Ranked

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National NatureServe Conservation Status

United States

Rounded National Status Rank: NNR - Unranked

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NatureServe Conservation Status

Rounded Global Status Rank: TNR - Not Yet Ranked

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National NatureServe Conservation Status

United States

Rounded National Status Rank: NNR - Unranked

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NatureServe Conservation Status

Rounded Global Status Rank: G5 - Secure

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Notes

Comments

Some plants, especially from Arizona, included here in Gaillardia pinnatifida, have mostly narrow, undivided leaf blades (mostly 3–8+ mm wide, villous to sparsely strigillose; var. linearis) and intergrade with similar plants called G. multiceps, which have sparsely and minutely hispidulous or glabrate leaf blades.

Plants from Utah with yellow disc corollas and densely gland-dotted leaves, included here in Gaillardia pinnatifida, have been recognized as G. flava.

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